1 2008-02-19 Eric Blake <ebb9@byu.net>
3 Clean up foreach example.
4 * doc/m4.texinfo (Foreach, Improved foreach): Document another
5 shortcoming in foreach.m4.
7 2008-02-18 Eric Blake <ebb9@byu.net>
9 Avoid some magic numbers.
10 * src/m4.h (DEBUG_TRACE_ARGS, DEBUG_TRACE_EXPANSION)
11 (DEBUG_TRACE_QUOTE, DEBUT_TRACE_ALL, DEBUG_TRACE_LINE)
12 (DEBUG_TRACE_FILE, DEBUG_TRACE_PATH, DEBUG_TRACE_CALL)
13 (DEBUG_TRACE_INPUT, DEBUG_TRACE_CALLID, DEBUG_TRACE_VERBOSE)
14 (DEBUG_TRACE_DEFAULT): Use hex constants, to make it obvious these
16 * src/input.c (CHAR_EOF, CHAR_MACRO, CHAR_QUOTE, CHAR_ARGV):
17 Define in terms of UCHAR_MAX.
18 (set_word_regexp): Likewise.
19 * src/builtin.c (compile_pattern, m4_translit): Likewise.
20 Reported by Ralf Wildenhues.
22 2008-02-16 Eric Blake <ebb9@byu.net>
24 Add regression test for multi-character quote recursion.
25 * examples/foreach2.m4: Use $0 rather than spelling out name.
26 * examples/foreachq2.m4: Likewise.
27 * examples/forloop2.m4: Likewise.
28 * examples/hanoi.m4: Likewise.
29 * examples/trace.m4: Likewise.
30 * doc/m4.texinfo (Improved forloop): Document advantage of $0.
31 (Improved foreach): Adjust dump from file.
33 Stage 15: return argv refs back to collect_arguments.
34 Collect an entire $@ reference at once rather than one argument at
35 a time, outside of quotes (but inside quotes, $@ is still
36 flattened for now). The skip_last field allows concatenation of
37 $@ with other text when collecting arguments.
38 Memory impact: noticeable improvement, due to better reuse of $@.
39 Speed impact: noticeable improvement, due to less parsing.
40 * src/m4.h (enum token_type): Add TOKEN_ARGV.
41 (struct token_chain): Add skip_last member to argv link.
42 (next_token): Update prototype.
43 * src/input.c (CHAR_ARGV): New placeholder input character.
44 (peek_input): Add parameter, to pass $@ at once.
45 (next_char_1, append_quote_token): Handle $@ inside quotes.
46 (init_argv_token): New function.
47 (push_token, match_input, next_token, peek_token, lex_debug):
49 * src/macro.c (expand_input, collect_arguments): Likewise.
50 (expand_argument): Handle incoming $@ token.
51 (arg_adjust_refcount, arg_token, arg_text, make_argv_ref_token):
52 Handle nested $@ refs.
53 * src/symtab.c (symtab_debug): Update caller.
54 * examples/null.m4: Document more tests that are needed. Add
55 tests for NUL with divert, patsubst, and regexp.
56 * examples/null.out: Update for new tests.
57 * doc/m4.texinfo (Syntax): Add test for m4exit and NUL.
58 * checks/get-them (AWK): Give a default value.
59 * checks/check-them: Allow tests to invoke child processes with
60 same include path. Perform message normalization on stderr.
62 2008-02-15 Eric Blake <ebb9@byu.net>
64 Use fastmaps for better regex performance.
65 * src/builtin.c (compile_pattern): Allocate a fastmap.
66 * src/input.c (word_start): Delete.
67 (set_word_regexp): Compile a fastmap instead.
68 (peek_token, next_token): Use fastmap.
69 (pop_wrapup): Free memory on exit.
71 2008-02-13 Eric Blake <ebb9@byu.net>
74 * doc/m4.texinfo (Incompatibilities): Use @. after capital.
75 (History): Use @: after abbreviations.
76 (M4exit): Use correct Latin abbreviation.
78 2008-02-11 Eric Blake <ebb9@byu.net>
80 Document behavior of __gnu__().
81 * doc/m4.texinfo (Platform macros): Enhance test.
82 (Macro expansion): New test.
84 Use gnulib's git-merge-changelog driver when available.
85 * .gitattributes: New file.
86 * bootstrap: Install driver, if not already present.
88 2008-02-06 Eric Blake <ebb9@byu.net>
90 Fix security hole introduced 2007-11-22.
91 * src/m4.h (includes): Add quotearg.h.
92 * src/m4.c (m4_verror_at_line): Properly escape macro names.
93 (main): Manage quoteargs defaults.
94 * doc/m4.texinfo (Indir): Document and test this.
96 2008-02-05 Eric Blake <ebb9@byu.net>
98 * m4/gnulib-cache.m4: Import the strtod module.
100 2008-02-02 Eric Blake <ebb9@byu.net>
102 Stage 14: allow pushing argv references.
103 Push a $@ reference to the input engine in one go, rather than
104 pushing each element. For now, argument collection still gets one
105 argument of a $@ at a time; but the penalties of this patch make
106 it easier to manage $@ efficiently in future patches.
107 Memory impact: noticeable penalty, due to larger struct and O(n)
108 to O(n^2) on unboxed recursion.
109 Speed impact: noticeable penalty, due to more bookkeeping.
110 * src/m4.h (struct token_chain): Add comma and quotes fields.
111 (arg_adjust_refcount, arg_print, push_arg_quote): New prototypes.
112 * src/input.c (push_token, pop_input, input_print, peek_input)
113 (next_char_1): Support $@ references.
114 * src/macro.c (struct macro_arguments): Add level field. Match
115 type of arraylen to argc.
116 (collect_arguments): Populate new field.
117 (expand_macro, make_argv_ref, push_arg): Factor...
118 (arg_adjust_refcount, make_argv_ref_token, push_arg_quote):
119 ...into these new methods.
120 (arg_token): Add new parameter.
121 (arg_print): New function.
122 (arg_mark, arg_type, arg_text, arg_equal, arg_empty, arg_len)
123 (arg_func, push_args): Adjust callers.
124 * doc/m4.texinfo (Ifelse): Augment test.
126 2008-01-31 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
128 * checks/Makefile.in: Use @SET_MAKE@, and use @SHELL@ rather
129 than hard-coding /bin/sh.
131 Reported by Lawson Chan.
133 2008-01-27 Eric Blake <ebb9@byu.net>
135 Stage 13: push composite text tokens.
136 Support pushing composite tokens, allowing back-references to be
137 reused through multiple macro expansions. Add hueristic that
138 avoids creating new reference when pushing existing references.
139 Memory impact: noticeable improvement due to better reference
140 reuse, except for O(n) to O(n^2) copying in boxed recursion.
141 Speed impact: slight penalty, due to more bookkeeping.
142 * src/m4.h (push_token): Adjust prototype.
143 * src/input.c (push_token): Add parameter, and handle composite
145 (append_quote_token): Inline short strings.
146 * src/macro.c (push_arg, push_args): Adjust callers.
148 2008-01-26 Eric Blake <ebb9@byu.net>
150 Stage 12: make token_chain a union, add string_pair.
151 Shrink size of symbol chains by using a union. Make passing quote
152 delimiters around more efficient. Other code cleanups.
153 Memory impact: slight improvement, due to smaller struct.
154 Speed impact: slight penalty, due to more bookkeeping.
155 * src/m4.h (STRING): Delete typedef.
156 (struct string_pair, enum token_chain_type): New types.
157 (struct token_chain): Reduce size via a union.
158 (ARG_LEN): New macro.
160 * src/builtin.c (ARG): ...from here.
161 (dump_args, define_macro, m4_dumpdef, m4_builtin, m4_indir)
162 (m4_defn, mkstemp_helper, m4_maketemp, m4_mkstemp, m4___file__)
163 (m4___program__, m4_m4wrap, m4_len, m4_index, m4_substr)
164 (m4_regexp, m4_patsubst): Adjust callers.
165 * src/input.c (rquote, lquote, bcomm, ecomm): Delete...
166 (curr_quote, curr_comm): ...replaced by these.
167 (make_text_link, push_token, pop_input, input_print, peek_input)
168 (next_char_1, input_init, set_quotes, set_comment, set_quote_age)
169 (next_token, peek_token): Adjust callers.
170 * src/macro.c (expand_macro, arg_token, arg_mark, arg_text)
171 (arg_equal, arg_len, make_argv_ref, push_arg, push_args):
173 * src/format.c (ARG_INT, ARG_LONG, ARG_STR, ARG_DOUBLE, format):
175 * src/freeze.c (produce_frozen_state): Likewise.
176 * src/debug.c (trace_format, trace_pre): Likewise.
177 (debug_decode): Don't lose partial traces prior to reducing
180 2008-01-22 Eric Blake <ebb9@byu.net>
182 Stage 11: full circle for single argument references.
183 Pass quoted strings through to argument collection in a single
184 action, so that an argument can be reused throughout macro
185 recursion if it remains unchanged.
186 Memory impact: noticeable improvement, due to more reuse in
187 argument collection stacks; O(n^2) to O(n) on boxed recursion.
188 Speed impact: noticeable improvement, due to less copying.
189 * src/m4.h (struct token_chain): Add quote_age member.
190 (struct token_data): Add end member to chain alternate.
191 (make_text_link): New prototype.
192 * src/input.c (CHAR_QUOTE): New macro.
193 (word_start): Pre-allocate.
194 (set_word_regexp): Simplify.
195 (make_text_link): Export, and handle new fields.
196 (next_char, next_char_1): Add parameter.
197 (append_quote_token): New function.
198 (match_input, next_token): Adjust callers to handle quoted input
200 * src/macro.c (struct macro_arguments): Add wrapper member.
201 (expand_argument): Accept composite blocks from input engine.
202 (expand_macro): Reduce refcounts of composite arguments.
203 (collect_arguments, arg_token, arg_mark, make_argv_ref): Update to
205 (arg_type, arg_text, arg_equal, arg_len): Treat composite
207 (push_arg, push_args): Handle composites.
209 2008-01-17 Eric Blake <ebb9@byu.net>
211 Stage 10: avoid extra copying of strings and comments.
212 When collecting tokens that are immune to further expansion, avoid
213 copying data from one obstack to another by outputting it into the
214 destination obstack to begin with. Also reduce copying done in
216 Memory impact: slight improvement, due to better obstack usage.
217 Speed impact: noticeable improvement, due less data copying.
218 * m4/gnulib-cache.m4: Import the intprops and vasnprintf-posix
220 * src/m4.h (includes): Use new gnulib modules.
221 (next_token): Adjust prototype.
222 (bad_argc): New prototype.
223 * src/format.c (arg_int, arg_long, arg_double): New helper
225 (ARG_INT, ARG_LONG, ARG_STR, ARG_DOUBLE): Track missing
227 (format): Improve warnings, and avoid copying into obstack in the
229 * src/input.c (next_token): Add new parameter.
230 (lex_debug): Adjust caller.
231 * src/symtab.c (symtab_debug): Likewise.
232 * src/macro.c (expand_input, expand_token, expand_argument)
233 (collect_arguments): Likewise.
234 * src/output.c (m4_tmpname): Guarantee correct buffer size.
235 * src/builtin.c (builtin_init): Improve efficiency.
237 (ntoa): Tighten buffer allocation.
238 * doc/m4.texinfo (Format): Test the improvements.
239 * NEWS: Document the improvement.
241 2008-01-14 Eric Blake <ebb9@byu.net>
243 Fix --warn-macro-sequence regression from 2007-11-29.
244 * src/builtin.c (define_user_macro): Use correct length.
245 * doc/m4.texinfo (Arguments): Test the fix.
246 (History): Reword to account for new year and eventual result of
249 2008-01-08 Eric Blake <ebb9@byu.net>
252 * NEWS: Update year. Mention effect of my recent memmem
253 contributions to gnulib.
255 2007-12-21 Eric Blake <ebb9@byu.net>
257 Stage 9: share rather than copy single-arg refs.
258 Use hooks of previous patch to create back-references to arguments
259 in the input engine, and inline short text rather than always
260 creating a FIFO link. Also start testing embedded NUL behavior.
261 Until the argument collection engine also shares references, the
262 memory usage increases.
263 Memory impact: noticeable penalty, due to longer life of argv
264 changing O(n) to O(n^2) on boxed recursion.
265 Speed impact: slight improvement, due less data copying.
266 * m4/gnulib-cache.m4: Import quote and memmem modules.
267 * src/m4.h (arg_scratch): New prototype.
268 * src/input.c (INPUT_INLINE_THRESHOLD): New define.
269 (push_token): Use it to inline short text, and save references to
271 (input_init, next_token): Simplify obstack handling.
272 * src/macro.c (expand_argument): Likewise.
273 (expand_macro): Track scratch space.
274 (arg_scratch): New function.
275 (make_argv_ref): Use it.
276 (push_args): Likewise, and simplify comma handling, since most
277 separators are short enough to be inlined.
278 * src/builtin.c (builtin_init): Avoid cast.
279 (m4_errprint, m4_index): Transparently support NUL.
280 (m4_translit): Use scratch space, rather than leaking memory on
282 * doc/m4.texinfo (Syntax): Add new test of embedded NUL.
283 * checks/get-them: Extract test that uses external files.
284 * checks/check-them: Run the new test. Use unified diff if
285 possible, and force text mode when debugging NUL handling.
286 * examples/null.m4: New file.
287 * examples/null.out: Likewise.
288 * examples/null.err: Likewise.
289 * examples/Makefile.am (EXTRA_FILES): Distribute these files.
290 * .gitattributes: Treat new files as text, in spite of embedded
293 2007-12-18 Eric Blake <ebb9@byu.net>
295 Stage 8: extend life of references into argv.
296 Add hooks to lengthen the lifetime of arguments reused in a macro
297 expansion, rather than always discarding arguments at the end of
298 expand_macro. Rework the expand_macro obstacks to handle longer
299 lifetimes. For now, the hooks remain unused.
300 Memory impact: slight penalty, due to larger structs.
301 Speed impact: slight penalty, due to more bookkeeping.
302 * src/m4.h (obstack_regrow): Delete, now that it is unused.
303 (struct token_chain): Add level field.
304 (push_token): Adjust prototype.
305 (adjust_refcount): New prototype.
306 * src/macro.c [DEBUG_MACRO]: Add debugging hooks for $@ reference
308 (argc_stack, argv_stack): Delete, replaced by...
309 (struct macro_arg_stacks, stacks, stacks_count): ...these new
310 structure for tracking $@ references.
311 (expand_input): Initialize new structure.
312 (collect_arguments): Alter signature.
313 (expand_macro): Rework obstack handling, in order to keep $@
314 references alive until they have been rescanned.
315 (adjust_refcount, arg_mark): New functions.
316 (make_argv_ref): Use new field.
317 (push_arg, push_args): Update callers.
318 * src/input.c (make_text_link): Use new field.
319 (push_token): Change signature.
320 (pop_input, next_char_1): Call new function.
321 * doc/m4.texinfo: Clean up some examples of -d option usage.
322 (Ifelse): Add some stress tests.
324 2007-12-13 Eric Blake <ebb9@byu.net>
327 * doc/m4.texinfo (Inhibiting Invocation): Missed one instance in
332 2007-12-13 Paolo Bonzini <bonzini@gnu.org> (tiny change)
334 * doc/m4.texinfo (Inhibiting Invocation): Fix quoting of a quoting
336 Reported by Giovanni Toffetti.
338 2007-12-11 Eric Blake <ebb9@byu.net>
340 Stage 7: add chained token support to input parser.
341 Allow the LIFO input engine to rescan a macro expansion composed
342 of smaller chunks of FIFO data, rather than the old approach of a
343 monolithic string. For now, all chunks are still copied.
344 Memory impact: slight penalty, due to FIFO chain overhead.
345 Speed impact: noticeable penalty, due to extra bookkeeping.
346 * src/m4.h (struct token_chain): Add const safety.
347 (push_token): New prototype.
348 * src/input.c (INPUT_CHAIN): New enumerator.
349 (struct input_block): Add new input type u_c, and change u_s to
350 length-based processing.
351 (make_text_link): New helper function.
352 (push_token): New function.
353 (push_string_finish): Use it.
354 (pop_input, input_print, peek_input, next_char, next_char_1):
355 Adjust to handle new input type.
356 * src/macro.c (push_arg, push_args): Use new function.
358 2007-12-10 Eric Blake <ebb9@byu.net>
360 Stage 6: convert builtins to push arg at a time.
361 Add new methods to factor all builtins whose expansion includes an
362 argument, making back-reference creation easier in future patches.
363 Factor out length-limited printing to obstacks, and use -1 rather
364 than 0 for unlimited length.
366 Speed impact: slight improvement, due to better code sharing.
367 * src/m4.h (includes): Include <limits.h> here, instead of in
369 (input_block): New typedef.
370 (trace_pre, trace_post, push_string_finish): Update prototypes.
371 (obstack_print, input_print, push_arg, push_args): New
373 * src/input.c (push_string_finish): Change return type.
374 (input_print): New function.
375 * src/debug.c (trace_format): Add %B specifier, and use new
377 (trace_pre): Remove redundant argc parameter.
378 (trace_post): Likewise, and change signature.
379 (obstack_print): New function.
380 * src/macro.c (expand_macro): Update caller.
381 (push_arg, push_args): New functions.
382 * src/builtin.c (m4_ifdef, m4_ifelse, m4_shift, m4_substr)
383 (m4_patsubst, expand_user_macro): Use new functions.
384 (mkstemp_helper, m4_maketemp): Avoid extra trailing NULs.
385 * src/m4.c (max_debug_argument_length, main): Set to INT_MAX, not
387 * src/output.c: Update includes.
388 * src/symtab.c: Likewise.
390 2007-12-07 Eric Blake <ebb9@byu.net>
392 Minor security fix: Quote output of mkstemp.
393 * src/builtin.c (mkstemp_helper): Produce quoted output.
394 * doc/m4.texinfo (Mkstemp): Update the documentation and tests.
395 * NEWS: Document this change.
397 Stage 5: add notion of quote age.
398 Cache the quoting rules that were in effect when a string was
399 parsed, to avoid reparsing that string if no changequote or other
400 quote age change took place in the meantime. A quote_age of 0 is
401 always safe, but does not benefit from caching.
402 Memory impact: slight penalty, due to larger struct.
403 Speed impact: slight penalty, due to more bookkeeping.
404 * src/input.c: Comment cleanups.
405 (current_quote_age): New global variable.
406 (set_quote_age): New helper function.
407 (input_init, set_word_regexp): Use it.
408 (set_quotes, set_comment): Likewise, and detect no-op changes.
409 (quote_age, safe_quotes): New functions.
410 (next_token): Track quote age.
411 * src/m4.h (struct token_data): Add quote_age member.
412 (TOKEN_DATA_QUOTE_AGE, quote_age, safe_quotes): New prototypes.
413 * src/macro.c (struct macro_arguments): Add quote_age member.
414 (expand_token): Alter signature and track quote age.
415 (expand_input, expand_argument): All callers changed.
416 (collect_arguments, make_argv_ref): Track quote age.
417 (arg_text, arg_len, arg_func): Detect type mismatch.
418 * doc/m4.texinfo (Ifelse, Changequote): Add more tests.
419 (Incompatibilities): Fix typo.
420 * examples/wraplifo.m4: New file.
421 * examples/Makefile.am (EXTRA_DIST): Distribute it.
423 2007-12-04 Eric Blake <ebb9@byu.net>
425 Fix builds with OpenBSD make.
426 * doc/Makefile.am (HELP2MAN): New macro.
427 (man_MANS, m4.1): Fix rules for building m4.1 into srcdir.
428 * README: Update copyright.
429 * HACKING: Mention help2man and makeinfo dependencies.
431 2007-11-29 Eric Blake <ebb9@byu.net>
433 Stage 4: route indir, builtin through ref; make argv opaque.
434 Finish making struct opaque to all but the input engine, by
435 reworking obstack usage in expand_macro to better support creation
436 of a $@ reference. Canonicalize the empty argument, to allow
437 pointer comparison optimizations.
438 Memory impact: slight penalty, due to larger struct.
439 Speed impact: slight improvement, due to fewer function calls.
440 * src/m4.h (obstack_regrow): Borrow definition from head.
441 (struct token_chain): Add flatten and len members.
442 (arg_equal, arg_empty, make_argv_ref): New prototypes.
443 (struct macro_arguments): Move...
444 * src/macro.c (struct macro_arguments): ...here, making it
445 opaque. Add has_ref member.
446 (empty_token): New placeholder, for optimizing comparison with
448 (collect_arguments): Change signature, and populate new fields.
449 (expand_macro): Alter handling of obstacks.
450 (arg_token): New helper method.
451 (arg_equal, arg_empty, make_argv_ref): New methods.
452 (arg_type, arg_text, arg_len, arg_func): Use new methods.
453 * src/builtin.c (m4_ifelse, m4_builtin, m4_indir, m4_eval):
455 * src/format.c (format): Likewise.
457 Stage 3: cache length, rather than computing it.
458 Cache the length of a token, to avoid repeating lots of strlen
459 calls. Additionally, by using obstack length rather than strlen,
460 the input engine can now support embedded NUL.
461 Memory impact: slight penalty, due to larger struct.
462 Speed impact: noticeable improvement, due to fewer function
464 * src/input.c (next_token): Grab length from obstack rather than
466 * src/m4.h (token_data, macro_arguments): Add length field.
467 (TOKEN_DATA_LEN): New accessor.
468 (define_user_macro): Add parameter.
469 * src/builtin.c (define_user_macro, mkstemp_helper): Use
471 (builtin_init, define_macro, m4_maketemp, m4_mkstemp): Adjust
473 (dump_args, m4_ifdef, m4_ifelse, m4_builtin, m4_indir, m4_eval)
474 (m4_len, m4_substr, m4_translit, m4_regexp, m4_patsubst)
475 (expand_user_macro): Use cached lengths.
476 * src/freeze.c (reload_frozen_state): Adjust callers.
477 * src/m4.c (main): Likewise.
478 * src/macro.c (expand_token, expand_argument, collect_arguments)
479 (arg_len): Use cached length.
480 * doc/m4.texinfo (Mkstemp): Ensure mkstemp does not produce NUL.
482 2007-11-27 Eric Blake <ebb9@byu.net>
484 Stage 2: use accessors, not direct reference, into argv.
485 Outside of macro.c, use accessor methods rather than direct access
486 into the argv struct.
488 Speed impact: slight penalty, due to increased function calls.
489 * src/m4.h (TOKEN_EOF): Alter value, to ease debugging.
490 (arg_argc, arg_type, arg_text, arg_len, arg_func): New
492 * src/macro.c (arg_argc, arg_type, arg_text, arg_len, arg_func):
493 New accessor functions.
494 * src/builtin.c (ARG, dump_args, define_macro, m4_builtin)
495 (m4_indir): Use new accessors.
496 * src/debug.c (trace_pre): Likewise.
497 * src/format.c (ARG_INT, ARG_LONG, ARG_STR, ARG_DOUBLE):
500 2007-11-24 Eric Blake <ebb9@byu.net>
502 Stage 1: convert token_data** into new object.
503 Pass a variable-size wrapper structure instead of an array to
504 builtins, so that subsequent optimizations in the structure need
505 not impact every builtin client.
506 Memory impact: slight penalty, since struct is larger than array.
507 Speed impact: slight penalty, due to increased bookkeeping.
508 * m4/gnulib-cache.m4: Import flexmember module.
509 * src/m4.h (struct macro_arguments, struct token_chain): New
511 (builtin_func): Alter signature.
512 (token_data): Add new TOKEN_COMP alternative.
513 * src/builtin.c: All builtins changed.
514 (ARG, dump_args, define_macro, expand_user_macro): Update to use
516 * src/debug.c (trace_pre, trace_post): Likewise.
517 * src/format.c (ARG_INT, ARG_LONG, ARG_STR, ARG_DOUBLE, format):
519 * src/macro.c (collect_arguments): Build new struct.
520 (call_macro, expand_macro): Update to use new struct.
522 2007-11-22 Eric Blake <ebb9@byu.net>
524 More error messages tied to macro names.
525 * src/input.c (set_word_regexp): Take additional parameter.
526 (input_init): Adjust caller.
527 * src/debug.c (debug_set_file, debug_set_output): Take additional
529 (debug_init): Adjust caller.
530 (expansion_level): Move declaration...
531 * src/m4.h (expansion_level): ...here.
532 (debug_set_output, set_word_regexp): Adjust prototypes.
533 * src/builtin.c (m4_changeword, m4_m4exit, m4_debugfile): Adjust
535 * src/m4.c (main): Likewise.
537 Refactor error messages to avoid macros.
538 * src/m4.h (_): Define, as a placeholder for now.
539 (M4ERROR, M4ERROR_AT_LINE): Delete.
540 (m4_error, m4_error_at_line): Change prototype.
541 (m4_warn, m4_warn_at_line): New prototypes.
542 * src/m4.c (m4_verror_at_line): New helper function.
543 (m4_error, m4_error_at_line): Use new function, and properly call
545 (m4_warn, m4_warn_at_line): New functions.
546 (stackovf_handler, main): All callers changed.
547 * src/builtin.c: Likewise.
548 * src/debug.c: Likewise.
549 * src/eval.c: Likewise.
550 * src/format.c: Likewise.
551 * src/freeze.c: Likewise.
552 * src/input.c: Likewise.
553 * src/macro.c: Likewise.
554 * doc/m4.texinfo (Indir, Builtin, Dumpdef, Incr, Eval, Substr)
555 (Improved forloop): Adjust tests accordingly.
557 Security fix: avoid arbitrary code execution with 'm4 -F'.
558 * src/freeze.c (produce_frozen_state): Never pass raw file name as
560 * NEWS: Document this fix.
562 2007-11-21 Eric Blake <ebb9@byu.net>
564 Consistently report macro name first in messages.
565 * src/m4.h (evaluate): Adjust prototype.
566 * src/builtin.c (bad_argc, numeric_arg, m4_placeholder): Alter
567 wording to match head.
568 (mkstemp_helper, substitute): Adjust signature. All callers
570 (m4_dumpdef, m4_builtin, m4_indir, m4_defn, m4_esyscmd, m4_eval)
571 (m4_undivert, m4_maketemp, m4_m4exit, m4_debugmode)
572 (m4_debugfile, m4_regexp, m4_patsubst): Mention macro name in
574 (m4_format): Adjust call.
575 * src/format.c (format): No longer skip argv[0].
576 * src/eval.c (evaluate): Mention macro name in message.
577 (logical_or_term, logical_and_term, or_term, xor_term, and_term)
578 (equality_term, cmp_term, shift_term, add_term, mult_term)
579 (exp_term, unary_term, simple_term): Adjust signature.
580 * src/macro.c (warn_builtin_concat): Likewise.
581 (expand_argument): Adjust caller.
582 * doc/m4.texinfo (Macro Arguments, Ifdef, Ifelse, Debug Output)
583 (Dnl, Improved fatal_error, Defn, Builtin, Index macro, Regexp)
584 (Substr, Translit, Patsubst, Format, Eval, Dumpdef, Include)
585 (Improved forloop, Indir, Trace, Incr): Adjust tests to match.
587 Make argument checking a bit more sane.
588 * src/builtin.c (bad_argc): Adjust signature, and don't force
589 callers to add 1. Adjust all callers.
590 (numeric_arg): Adjust signature. Adjust all callers.
592 Make dnl diagnostic print macro name.
593 * src/m4.h (skip_line): Adjust prototype.
594 * src/input.c (skip_line): Report error on behalf of caller.
595 * src/builtin.c (m4_dnl): Adjust caller.
596 (dump_args, m4_dumpdef, m4_changequote, m4_changecom)
597 (m4_changeword, m4_traceon, m4_traceoff, expand_user_macro): Use
598 ARG macro instead of open-coding.
599 * doc/m4.texinfo (Dnl): Adjust test.
601 2007-11-20 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
603 * Makefile.am (EXTRA_DIST): gendocs.sh is gone here.
605 2007-11-14 Eric Blake <ebb9@byu.net>
607 Avoid builtin concatenation in macro arguments.
608 * doc/m4.texinfo (Defn): Add tests.
609 * src/macro.c (warn_builtin_concat): New function.
610 (expand_argument): Use it to warn on more corner cases.
611 * NEWS: Mention new warning.
613 2007-11-13 Eric Blake <ebb9@byu.net>
615 Simplify previous patch.
616 * src/input.c (pop_input): Change signature.
617 (push_string_init, next_char_1): Adjust callers.
619 Note: Patches titled Stage 0 through N form a series of patches
620 which decreases the algorithmic complexity of tail recursion in
621 macro expansions from O(n^2) to O(n) in both time and memory, then
622 performs cleanups, such as handling of embedded NUL, made easier
623 by the code refactoring.
625 Stage 0: Fix memory leak in tail recursion.
626 Free expansion text in the input engine as soon as it is parsed,
627 rather than when the recursive expansion completes.
628 Memory impact: noticeable improvement, due to reduction from
629 O(n^2) to O(n) on recursion.
630 Speed impact: minor improvement, due to better memory usage.
631 * src/input.c (push_string_init): Let go of memory earlier.
632 (next_char_1): Make end of string detection reliable.
633 (match_input): Simplify use of push_string_init.
634 * NEWS: Document this fix.
636 2007-11-07 Eric Blake <ebb9@byu.net>
638 * doc/m4.texinfo (Pseudo Arguments): Test more corner cases.
640 2007-11-05 Eric Blake <ebb9@byu.net>
642 Use assert, rather than INTERNAL ERROR.
643 * src/m4.h: Include <assert.h>.
644 * src/builtin.c (m4_dumpdef, define_macro, m4_defn): Use assert.
645 * src/debug.c (trace_pre): Likewise.
646 * src/eval.c (evaluate, cmp_term, shift_term, mult_term):
648 * src/freeze.c (produce_frozen_state): Likewise.
649 * src/input.c (push_string_init, pop_input, init_macro_token)
650 (peek_input, next_char_1, set_word_regexp): Likewise.
651 * src/m4.c (main): Likewise.
652 * src/macro.c (expand_token, expand_argument, call_macro):
654 * src/output.c (make_diversion): Likewise.
655 * src/symtab.c (symtab_init): Likewise.
657 Use build-aux directory.
658 * configure.ac (PACKAGE, VERSION): Delete, since Automake does
660 (AC_CONFIG_AUX_DIR): Add, with auxiliary files in build-aux
661 instead of the top level.
662 * bootstrap: Adjust accordingly.
663 * m4/gnulib-cache.m4: Add --aux-dir option.
664 * doc/Makefile.am (m4.1): Rewrite rule to use build-aux/missing.
666 2007-11-02 Eric Blake <ebb9@byu.net>
668 Update some documentation about version control.
669 * NEWS: M4 is now stored in git.
672 * bootstrap: Likewise.
673 * commit: Delete, now that CVS commits are no longer necessary.
675 Adjust to recent gnulib change.
676 * m4/gnulib-cache.m4: Drop vasprintf-posix and xvasprintf, and use
677 xvasprintf-posix instead.
679 2007-11-01 Eric Blake <ebb9@byu.net>
681 Improve error message when early end of file occurs.
682 * doc/m4.texinfo (Macro Arguments, Changequote, Changecom)
683 (M4wrap): Adjust to new messages.
684 (Improved capitalize): Enhance test.
685 * src/m4.h (next_token): Adjust prototype.
686 * src/input.c (next_token): Add new parameter, and improve error
688 (lex_debug): Adjust callers.
689 * src/symtab.c (symtab_debug): Likewise.
690 * src/macro.c (expand_input, collect_arguments): Likewise.
691 (expand_argument): Likewise, and add parameter.
693 2007-10-31 Eric Blake <ebb9@byu.net>
695 Test more corner cases.
696 * doc/m4.texinfo (Changecom, Pseudo Arguments): Beef up tests.
697 (Improved foreach): Document alternate foreachq style.
698 * examples/foreachq3.m4: New file.
699 * examples/loop.m4: New file.
700 * examples/Makefile.am (EXTRA_DIST): Distribute them.
702 2007-10-28 Eric Blake <ebb9@byu.net>
704 More test coverage for autoconf usage patterns.
705 * doc/m4.texinfo (Inhibiting Invocation, Pseudo Arguments)
706 (Builtin): Add new undocumented tests.
707 (Shift): Document cond macro, and add new test.
709 2007-10-27 Eric Blake <ebb9@byu.net>
711 Document one use of changequote(`(',`)').
712 * doc/m4.texinfo (Changequote): Add new test, based on recent
713 autoconf addition of m4_expand.
715 2007-10-24 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
717 * examples/Makefile.am (EXTRA_DIST): Add capitalize2.m4.
719 2007-10-24 Eric Blake <ebb9@byu.net>
721 Reduce number of mingw testsuite failures.
722 * doc/m4.texinfo (Using frozen files): Skip test on mingw.
724 2007-10-22 Eric Blake <ebb9@byu.net>
726 Add DEBUG_REGEX debugging information.
727 * src/m4.h (DEBUG_REGEX): New debug macro.
728 * src/m4.c (main) [DEBUG_REGEX]: Open regex trace file when
730 * src/builtin.c (m4_patsubst, m4_regexp, compile_pattern)
731 [DEBUG_REGEX]: Trace regex usage.
733 Never let printf failures go undetected.
734 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import
736 * src/m4.h: Include xprintf.h.
737 * src/format.c (format): Warn on format failures.
738 * src/builtin.c (ntoa): Export.
739 (m4_errprint): Adjust all *printf callers.
740 * src/debug.c (debug_message_prefix, trace_format): Likewise.
741 * src/freeze.c (produce_frozen_state): Likewise.
742 * src/input.c [DEBUG_INPUT]: Likewise.
743 * src/m4.c (usage): Likewise.
744 * src/m4.h (DEBUG_PRINT1, DEBUG_PRINT3, DEBUG_MESSAGE)
745 (DEBUG_MESSAGE1, DEBUG_MESSAGE2): Likewise.
746 * src/output.c (m4_tmpname, shipout_text, freeze_diversione):
748 * src/path.c [DEBUG_INCL]: Likewise.
749 * src/stackovf.c (process_sigsegv) [DEBUG_STKOVF]: Likewise.
750 * src/symtab.c [DEBUG_SYM]: Likewise.
752 2007-10-17 Eric Blake <ebb9@byu.net>
754 Fix 'm4 -F file -t undefined'.
755 * src/freeze.c (produce_frozen_state): Avoid core dump.
756 * doc/m4.texinfo (Using frozen files): Test for the bug.
757 * NEWS: Mention the fix.
759 2007-10-09 Eric Blake <ebb9@byu.net>
761 * NEWS: Document recent speedups.
763 Fix regexp regression of 2007-09-29.
764 * src/builtin.c (substitute): Allow NULL regs when no
765 subexpressions were present.
766 (m4_regexp): Handle \ escapes even with empty regex.
767 * doc/m4.texinfo (Regexp, Patsubst): Catch this bug.
769 Cache regex compilation for another autoconf speedup.
770 * src/m4.h (free_macro_sequence): Rename...
771 (free_regex): ...to this.
772 * src/m4.c (main): Update caller.
773 * src/builtin.c (REGEX_CACHE_SIZE, m4_regex, regex_cache): New
775 (compile_pattern): New function; cache recent regexes.
776 (free_regex): Rename, and clean up additional memory.
777 (m4_regexp, m4_patsubst): Use new function.
779 2007-10-02 Eric Blake <ebb9@byu.net>
781 Document quoting pitfalls in capitalize.
782 * doc/m4.texinfo (Patsubst): Use the examples directory. Also
784 (Improved capitalize): New node.
785 * examples/capitalize.m4: Update to match manual.
786 * examples/capitalize2.m4: New file.
788 2007-10-01 Eric Blake <ebb9@byu.net>
790 Another Autoconf usage pattern optimization.
791 * src/builtin.c (m4_index): Optimize search for one byte.
792 * doc/m4.texinfo (Index macro, Regexp, Patsubst): Test the new
795 2007-09-29 Eric Blake <ebb9@byu.net>
797 Optimize for Autoconf usage pattern.
798 * src/builtin.c (m4_regexp, m4_patsubst): Handle empty regex
801 2007-09-24 Eric Blake <ebb9@byu.net>
803 Create .gitignore alongside .cvsignore.
804 * bootstrap (LC_ALL): Set up front.
805 (version control) Borrow idea from head, to avoid churn in
806 m4/.*ignore files modified by gnulib-tool.
808 2007-09-13 Eric Blake <ebb9@byu.net>
812 2007-09-07 Eric Blake <ebb9@byu.net>
814 * AUTHORS: Simplify, to match libtool and autoconf layout.
815 * THANKS: Sync with head.
817 2007-08-10 Eric Blake <ebb9@byu.net>
819 * doc/m4.texinfo (Compatibility): Sync with head.
821 2007-08-10 Konrad Schwarz <konrad.schwarz@siemens.com> (tiny change)
822 and Eric Blake <ebb9@byu.net>
824 * doc/m4.texinfo (Defn): Update wording.
826 2007-08-09 Eric Blake <ebb9@byu.net>
828 POSIX requires defn(`a',`b') to concatenate definitions.
829 * src/builtin.c (m4_defn): Allow multiple arguments, but warn if
830 trying to mix a builtin with anything else.
831 * doc/m4.texinfo (Defn): Document a use for this POSIX
833 (Incompatibilities): Update to match current status.
834 * NEWS: Document this change.
836 Reported by Konrad Schwarz.
838 2007-08-04 Eric Blake <ebb9@byu.net>
840 Normalize all GPL license notices.
841 * GNUmakefile: Update license wording.
842 * Makefile.am: Likewise.
843 * Makefile.maint: Likewise.
844 * bootstrap: Likewise.
846 * configure.ac: Likewise.
847 * checks/Makefile.in: Likewise.
848 * doc/Makefile.am: Likewise.
849 * examples/Makefile.am: Likewise.
850 * src/Makefile.am: Likewise.
851 * src/builtin.c: Likewise.
852 * src/debug.c: Likewise.
853 * src/eval.c: Likewise.
854 * src/format.c: Likewise.
855 * src/freeze.c: Likewise.
856 * src/input.c: Likewise.
857 * src/m4.c: Likewise.
858 * src/m4.h: Likewise.
859 * src/macro.c: Likewise.
860 * src/output.c: Likewise.
861 * src/path.c: Likewise.
862 * src/stackovf.c: Likewise.
863 * src/symtab.c: Likewise.
865 2007-07-21 Eric Blake <ebb9@byu.net>
867 Fix regression on NetBSD from 2007-05-28.
868 * src/output.c (m4_tmpopen): Explicitly reset append-mode stream
870 * NEWS: Document this fix.
872 Reported by Thomas Klausner.
874 2007-07-20 Eric Blake <ebb9@byu.net>
876 Fix 'make distcheck' issues.
877 * Makefile.am (EXTRA_DIST): No need to distribute
878 gpl-3.0.texi.diff anymore.
879 * m4/gnulib-cache.m4: Update to latest gnulib.
881 2007-07-14 Eric Blake <ebb9@byu.net>
883 Reflect upstream license .texi changes.
884 * doc/m4.texinfo (Copying): Rename node...
885 (GNU General Public License): ...to this.
886 (GNU Free Documentation License): Adjust node location.
887 * local/doc/gpl-3.0.texi.diff: Remove file.
889 2007-07-10 Eric Blake <ebb9@byu.net>
892 * configure.ac (AC_INIT): Bump version number.
893 * NEWS: Start changes since 1.4.10.
894 * doc/m4.texinfo (History): Mention 1.4.11.
895 (Copying This Package, Copying This Manual): Add index entries.
896 * local/lib/version-etc.c.diff: Delete, now that gnulib has been
898 * Makefile.am (EXTRA_DIST): Remove dead file.
900 2007-07-09 Eric Blake <ebb9@byu.net>
903 * doc/Makefile.am (m4_TEXINFOS): Distribute gpl-3.0.texi.
904 * Makefile.am (EXTRA_DIST): Distribute gnulib diffs.
905 * configure.ac (AC_INIT): Bump version number.
906 * NEWS: Describe changes since 1.4.9.
908 * src/format.c: Missed a GPLv3 conversion.
910 Avoid undefined behavior of %.*c in printf.
911 * src/format.c (format): Special case %c.
912 * TODO: Document that more remains to be done.
913 * NEWS: Document the fix.
915 2007-07-05 Eric Blake <ebb9@byu.net>
917 Fix up gnulib-tool usage.
918 * m4/gnulib-cache.m4: Change local-dir to local, not `.'.
919 * version-etc.c.diff: Move to...
920 * local/lib/version-etc.c.diff: ...here.
921 * gpl-3.0.texi.diff: Move to...
922 * local/doc/gpl-3.0.texi.diff: ...here.
924 2007-07-04 Eric Blake <ebb9@byu.net>
926 Upgrade to GPL version 3 or later.
927 * bootstrap: Pick up GPLv3.
928 * m4/gnulib-cache.m4: Augment with 'gnulib-tool
929 --local-dir=. --import gpl-3.0'.
930 * doc/m4.texinfo (Copying This Package): New appendix.
931 * NEWS: Mention this change.
932 * README: Mention why some files still claim to be version 2.
933 * version-etc.c.diff: New file, to make sure --version claims
934 correct GPL version. Temporary until gnulib makes move.
935 * gpl-3.0.texi.diff: New file, to allow inclusion of GPLv3 as
936 appendix, rather than section, of the manual.
937 * GNUmakefile: Update to new license.
938 * Makefile.am: Likewise.
939 * Makefile.maint: Likewise.
941 * configure.ac: Likewise.
942 * checks/Makefile.in: Likewise.
943 * doc/Makefile.am: Likewise.
944 * examples/Makefile.am: Likewise.
945 * src/Makefile.am: Likewise.
946 * src/builtin.c: Likewise.
947 * src/debug.c: Likewise.
948 * src/eval.c: Likewise.
949 * src/freeze.c: Likewise.
950 * src/input.c: Likewise.
951 * src/m4.c: Likewise.
952 * src/m4.h: Likewise.
953 * src/macro.c: Likewise.
954 * src/output.c: Likewise.
955 * src/path.c: Likewise.
956 * src/stackovf.c: Likewise.
957 * src/symtab.c: Likewise.
959 2007-06-26 Eric Blake <ebb9@byu.net>
961 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import assert'.
963 2007-06-26 Karl Berry <karl@freefriends.org> (tiny change)
965 Match Free Software Directory categories.
966 * doc/m4.texinfo (dircategory): Update.
968 2007-05-31 Eric Blake <ebb9@byu.net>
970 * src/output.c (output_text): Fix regression from 2007-05-28.
971 * doc/m4.texinfo (History): Mention 1.4.10.
972 (Format): Make testsuite output easier to debug.
974 2007-05-29 Eric Blake <ebb9@byu.net>
977 * configure.ac (AC_INIT): Bump version number.
978 * NEWS: Start changes since 1.4.9b, and fix typo.
981 * configure.ac (AC_INIT): Bump version number.
982 * NEWS: Describe changes since 1.4.9.
984 Improve format support.
985 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import
987 * src/format.c (format): Parse %'hhd, %a, %A. Avoid calling
988 printf with too few arguments, as in format(%*.*d,-1,-1,1).
989 * doc/m4.texinfo (Format): Expand tests, and improve
991 * NEWS: Document this change.
993 2007-05-28 Eric Blake <ebb9@byu.net>
995 Fix large diversion corner cases, including 1.4.8 regression.
996 * src/output.c (m4_tmpfile, m4_tmpopen): Simplify use of errno.
997 (make_room_for): Use NULL, not 0, for pointers.
998 (insert_diversion_helper): Avoid using rewind.
999 (freeze_diversions): Allow freezing large diversions.
1000 * NEWS: Document this fix.
1002 Also run gnulib unit tests during make check.
1003 * m4/gnulib-cache.m4: Augment with 'gnulib-tool
1004 --tests-base=tests --with-tests'.
1005 * configure.ac (AC_CONFIG_FILES): Build gnulib testdir.
1006 * Makefile.am (SUBDIRS): Run gnulib tests before ours.
1008 2007-05-25 Eric Blake <ebb9@byu.net>
1010 Backport prompts in examples from head.
1011 * src/macro.c (expand_macro): Shorten message.
1012 * doc/m4.texinfo (Manual, Command line files, Comments)
1013 (Inhibiting Invocation, Macro Arguments, Macro expansion, Indir)
1014 (Builtin, Shift, Forloop, Foreach, Dumpdef, Trace, Debug Levels)
1015 (Debug Output, Include, Format, Syscmd, Mkstemp, Location)
1016 (Using frozen files, Improved forloop, Improved foreach): Add
1017 prompts to examples.
1018 * checks/get-them: Ignore prompts in examples.
1020 Fix sync line interaction with multiline comments.
1021 * doc/m4.texinfo (Other Incompatibilities): Add example, and
1022 document bug in --syncline/divert interaction.
1023 (Preprocessor features): Augment test.
1024 * src/m4.h (output_text): Export.
1025 (shipout_text, next_token): Add parameter.
1026 * src/freeze.c (reload_frozen_state): Don't interfere with
1027 synclines when reloading state.
1028 * src/output.c (output_text): Export.
1029 (shipout_text): Take new parameter for start line of token.
1030 Output at most one syncline per token.
1031 * src/input.c (next_token): Report line where multiline tokens
1033 * src/macro.c (expand_input, expand_token, expand_argument):
1034 Adjust callers so that line is passed from input to output.
1035 * NEWS: Document this fix.
1036 Reported by Sergey Poznyakoff.
1038 Test -s in testsuite.
1039 * doc/m4.texinfo (Preprocessor features): Add a test.
1040 * checks/get-them: Support extra options in testsuite.
1041 * checks/check-them (examples): Use extra options.
1043 Reported by Sergey Poznyakoff.
1045 2007-05-24 Eric Blake <ebb9@byu.net>
1047 Support POSIX flush semantics on all platforms.
1048 * m4/gnulib-cache.m4: Remove closeout, and augment with
1049 'gnulib-tool --import closein fflush'.
1050 * src/m4.h (includes): Use closein, not closeout.
1051 * src/m4.c (main): Ensure stdin is flushed when not all input is
1053 (process_file): No return needed.
1054 * src/debug.c (debug_flush_files): Rely on gnulib module, rather
1055 than excluding mingw.
1056 * NEWS: Document this change.
1058 Work around cygwin and mingw fseeko bugs.
1059 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import fseeko'.
1060 * src/debug.c (debug_flush_files): Prefer fseeko over fseek.
1062 2007-04-25 Eric Blake <ebb9@byu.net>
1064 Fix negative division within eval, regression of 2007-01-06.
1065 * doc/m4.texinfo (Eval): Catch this bug.
1066 * src/eval.c (mult_term): Fix it.
1067 * NEWS: Document this.
1069 Reported by Cesar Strauss.
1071 2007-04-23 Eric Blake <ebb9@byu.net>
1074 * configure.ac (AC_INIT): Bump version number.
1075 * NEWS: Start changes since 1.4.9.
1077 2007-03-23 Eric Blake <ebb9@byu.net>
1080 * configure.ac (AC_INIT): Bump version number.
1081 * NEWS: Describe changes since 1.4.8b.
1083 2007-03-16 Eric Blake <ebb9@byu.net>
1085 * doc/m4.texinfo (Mkstemp): Tweak wording.
1086 * src/output.c (output_init): Adjust to latest gnulib.
1088 2007-03-15 Eric Blake <ebb9@byu.net>
1090 Avoid Tandem/NSK's broken long long (without a symmetric unsigned
1091 long long, it confuses gnulib).
1092 * configure.ac (AC_TYPE_LONG_LONG_INT): Declare long long broken
1093 if unsigned long long doesn't work.
1095 Reported by Matthew Woehlke.
1097 2007-03-07 Eric Blake <ebb9@byu.net>
1100 * doc/m4.texinfo: Minor tweaks, avoid makeinfo warning.
1102 2007-03-01 Eric Blake <ebb9@byu.net>
1104 * doc/m4.texinfo: Pick up more index entries from head. Follow
1105 more texinfo recommendations.
1106 (Sysval): Improve tests.
1108 Avoid overfull \vbox warning from texinfo, due to indices that
1109 weren't quite big enough to split across page boundaries.
1110 * doc/m4.texinfo: Add lots of concept index entries.
1111 (Concept Index): Move to be last, as recommended by texinfo
1113 (Define, Arguments, Pseudo Arguments): Add more function entries.
1115 2007-02-28 Eric Blake <ebb9@byu.net>
1117 * doc/m4.texinfo (Eval): Clean up wording to reflext POSIX XCU ERN
1119 (Pseudo Arguments): Add useful example.
1121 * doc/m4.texinfo (Pushdef, Incompatibilities): Clean up wording to
1122 reflect POSIX XCU ERN 118.
1124 * src/m4.h (DEFAULT_MACRO_SEQUENCE): Factor out from...
1125 * src/m4.c (usage): ...here,...
1126 * src/builtin.c (set_macro_sequence): ...and here.
1127 (define_user_macro): Fix typo.
1128 * doc/m4.texinfo (Preprocessor features, Arguments): Fix minor
1130 (Shift): Document composite macro argn for portably getting at
1131 positional parameters beyond 9.
1132 * configure.ac (AC_INIT): Bump version number.
1133 * NEWS: Start changes of 1.4.8c.
1135 2007-02-24 Eric Blake <ebb9@byu.net>
1137 Beta Release 1.4.8b:
1138 * configure.ac (AC_INIT): Bump version number.
1139 * NEWS: Describe changes since 1.4.8.
1141 Reserve all uses of raw ${} in macro definitions, not just
1143 * src/builtin.c (set_macro_sequence): Change default macro
1145 * doc/m4.texinfo (Operation modes): Update to match.
1146 * src/m4.c (usage): Likewise.
1149 2007-02-23 Eric Blake <ebb9@byu.net>
1151 * src/m4.h (includes): Update to latest gnulib.
1153 2007-02-08 Eric Blake <ebb9@byu.net>
1155 Rename --warn-syntax to --warn-macro-sequence[=regex], to make it
1156 more flexible, and so that autoconf can use it.
1157 * src/m4.h (set_macro_sequence, free_macro_sequence): New
1159 * src/builtin.c (macro_sequence_buf, macro_sequence_regs)
1160 (macro_sequence_inuse, set_macro_sequence, free_macro_sequence):
1161 New variables and functions.
1162 (define_user_macro): Allow flexibility in regular expression used
1164 * src/m4.c (warn_syntax): Delete.
1165 (usage, WARN_MACRO_SEQUENCE_OPTION, main): Implement changed
1166 spelling of option, along with optional argument.
1167 * doc/m4.texinfo (Operation modes, Arguments): Document this
1169 * NEWS: Document this change.
1171 2007-02-05 Eric Blake <ebb9@byu.net>
1173 * m4/gnulib-cache.m4: Module strstr no longer exists.
1175 Avoid bool bitfields, as they don't work on AIX.
1176 * src/m4.h (bool_bitfield): New typedef.
1177 (struct symbol, struct builtin): Use it.
1178 * src/input.c (struct input_block): Likewise.
1179 Reported by Albert Chin.
1181 * doc/m4.texinfo (Sysval): Avoid SIGPIPE in test as unreliable.
1182 Reported by Albert Chin.
1185 2006-06-18 Bruno Haible <bruno@clisp.org> (tiny change)
1187 * doc/m4.texinfo (Input processing): Further clarifications.
1189 2007-02-03 Eric Blake <ebb9@byu.net>
1191 * doc/m4.texinfo (Input processing, Quoting Arguments): Beef up
1193 Reported by Bruno Haible.
1195 2007-02-01 Eric Blake <ebb9@byu.net>
1197 * src/m4.c (fatal_warnings): New variable.
1198 (usage): Document new -E behavior.
1199 (main): Make -E an additive option.
1200 (m4_error, m4_error_at_line): Change exit status when required.
1201 * NEWS: Document this change.
1202 * doc/m4.texinfo (Operation modes): Likewise.
1203 Reported by Ralf Wildenhues.
1205 2007-01-27 Eric Blake <ebb9@byu.net>
1207 * src/m4.h (warn_syntax): Declare.
1208 (init_pattern_buffer): Export.
1209 * src/m4.c (warn_syntax, usage, WARN_SYNTAX_OPTIONS)
1210 (long_options, main): Implement new option.
1211 * src/builtin.c (init_pattern_buffer): Allow NULL regs argument.
1212 (define_user_macro): Warn on $11 and ${1} if requested.
1213 * src/input.c (init_pattern_buffer): Delete duplicate method.
1214 * doc/m4.texinfo (Operation modes): Document it.
1215 (Arguments): Document future direction of ${11} vs. $11.
1216 (Incompatibilities): Fix wording on POSIX limitations.
1217 * checks/get-them: Parse @{ and @} correctly.
1218 * NEWS: Document this change.
1220 2007-01-26 Eric Blake <ebb9@byu.net>
1222 * src/builtin.c (includes): Adjust to gnulib changes.
1224 2007-01-15 Eric Blake <ebb9@byu.net>
1226 * doc/m4.texinfo: Pull in various improvements from head.
1227 * src/builtin.c (include): Alter exit status on failure.
1228 * NEWS: Document this fix.
1230 2007-01-13 Eric Blake <ebb9@byu.net>
1232 * configure.ac (AC_CHECK_MEMBERS): Check for stack_t.ss_sp, and
1233 assume the fallback of ss_base for BSDI 4.0.1.
1234 * src/stackovf.c (setup_stackovf_trap) [HAVE_SIGALTSTACK &&
1235 ! HAVE_STACK_T_SS_SP]: Use this check.
1236 Reported by Chris McGuire.
1238 * NEWS: Document the improvement.
1240 2007-01-09 Eric Blake <ebb9@byu.net>
1242 * src/eval.c (ASSIGN): New enumerator.
1243 (eval_lex): Recognize '='.
1244 (equality_term): Treat '=' like '==', but warn that it is
1246 * doc/m4.texinfo (Eval): Document and test this.
1247 (Incompatibilities): Document the POSIX incompatibility.
1248 * NEWS: Document this change.
1250 2007-01-06 Eric Blake <ebb9@byu.net>
1252 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import stdint'.
1253 * checks/check-them: Record expected exit status.
1254 * checks/get-them: Check exit status.
1255 * src/m4.h (eval_t, unsigned_eval_t): Delete, use POSIX int32_t
1257 * src/builtin.c: All users changed.
1258 * src/eval.c: Likewise. Also document where we are triggering
1259 undefined or implementation-defined behavior.
1260 (BADOP, NEGATIVE_EXPONENT, INVALID_OPERATOR, eval_lex, evaluate)
1261 (logical_or_term, logical_and_term, logical_not_term, not_term)
1262 (equality_term, unary_term): Port from head to follow POSIX
1264 (exp_term): Reject 0**0 as undefined.
1265 * doc/m4.texinfo (History): Mention 1.4.9.
1266 (Format, Incompatibilities): Update to document POSIX compliance.
1267 * NEWS: Document this change.
1269 2007-01-04 Eric Blake <ebb9@byu.net>
1271 * NEWS: Document previous fix.
1274 2007-01-04 Sami Liedes <sliedes@cc.hut.fi> (tiny change)
1276 Fix Debian bug 405594, introduced 2006-11-01 from a bad
1277 copy-n-paste from head.
1278 * src/m4.c (main): Use correct file name after --.
1280 2007-01-04 Eric Blake <ebb9@byu.net>
1282 Fix regression from 1.4.7 in large file handling on some
1283 platforms, introduced on 2006-10-13.
1284 * configure.ac (AC_LARGE_SYSFILE): Guarantee that large files
1286 * NEWS: Document this fix.
1288 2007-01-03 Eric Blake <ebb9@byu.net>
1290 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import
1292 * src/m4.c (AUTHORS, main): Use FSF wording for --version (plus
1293 it bumps the copyright year).
1295 2006-12-27 Eric Blake <ebb9@byu.net>
1297 * doc/m4.texinfo (Patsubst): Fix typo.
1299 2006-12-16 Eric Blake <ebb9@byu.net>
1301 * src/m4.c (main): Check for errors when closing stdin.
1303 2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
1305 * doc/m4.texinfo: Fix some typos.
1307 2006-12-09 Eric Blake <ebb9@byu.net>
1309 * configure.ac (AC_INIT): Bump version number.
1310 * NEWS: Start changes of 1.4.8a.
1312 2006-11-20 Eric Blake <ebb9@byu.net>
1315 * configure.ac (AC_INIT): Bump version number.
1316 * NEWS: Describe changes since 1.4.7.
1318 2006-11-16 Eric Blake <ebb9@byu.net>
1320 * doc/m4.texinfo (Include, Search Path, Diversions, Divert):
1321 Minor tweaks noticed while porting to head.
1323 2006-11-14 Eric Blake <ebb9@byu.net>
1325 * src/output.c (cleanup_tmpfile, freeze_diversions): Clean up
1327 (m4_tmpname): Avoid memory leak.
1329 2006-11-13 Eric Blake <ebb9@byu.net>
1331 * src/output.c (cleanup_tmpfile): Avoid double error message when
1332 umask is prohibitive.
1333 (m4_tmpname, m4_tmpopen, m4_tmpclose, m4_tmpremove): New
1335 (m4_tmpfile): Add parameter, move cloexec action here.
1336 (make_room_for): Adjust caller. Don't keep too many files open.
1337 (insert_diversion_helper): Unlink emptied temp files.
1338 (make_diversion): Don't keep too many files open.
1339 * doc/m4.texinfo (Diversions): Tweak wording, now that open file
1340 descriptors are no longer a limiting factor.
1341 * NEWS: Document this change.
1343 Backport sparse diversion handling from head.
1344 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import
1346 * src/output.c (struct m4_diversion): Rename from struct
1347 diversion, and update members. All users changed.
1348 (diversion_table): Change to an ordered set, instead of an array.
1349 (div0): New storage for diversion 0.
1350 (diversions): No longer needed.
1351 (free_list): New list to allow recycling diversion storage.
1352 (diversion_storage): New storage to reduce malloc overhead.
1353 (cmp_diversion_CB, threshold_diversion_CB): New callbacks.
1354 (output_init, output_exit, cleanup_tmpfile, make_room_for)
1355 (make_diversion): Handle new diversion storage scheme.
1356 (insert_diversion_helper): New function.
1357 (insert_diversion, undivert_all, freeze_diversions): Use it.
1358 * doc/m4.texinfo (Divert, Diversions): Move hidden test of memory
1359 exhaustion to visible test of large diversion numbers.
1360 * NEWS: Document this fix.
1362 2006-11-11 Eric Blake <ebb9@byu.net>
1364 * src/builtin.c (m4_translit): Slight optimization.
1366 * src/m4.h (to_uchar): Depend on HAVE_INLINE.
1368 * src/builtin.c: Remove unnecessary casts.
1369 (expand_ranges): Make 8-bit clean.
1370 * doc/m4.texinfo (Translit): Add tests and wording.
1371 * NEWS: Document this fix.
1373 2006-11-07 Eric Blake <ebb9@byu.net>
1375 * src/m4.h (output_exit): New prototype.
1376 * src/m4.c (main): Use it.
1377 * src/output.c (cleanup_tmpfile): Close files before removing
1379 (insert_diversion): Check for failure.
1380 (output_exit): Avoid memory leak.
1381 * doc/m4.texinfo (Diversions): Test this bug.
1383 * doc/m4.texinfo (Esyscmd, Errprint): Minor touchups.
1385 2006-11-01 Eric Blake <ebb9@byu.net>
1387 Allow C++ compilation on Linux, as a safety measure in type
1389 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import
1391 * src/m4.h (hack_symbol, hack_all_symbols): Use full prototype.
1392 (boolean): Kill this, and use stdbool.h instead.
1393 * src/debug.c, src/eval.c, src/input.c, src/macro.c, src/m4.c:
1394 * src/output.c, src/symtab.c: All users changed.
1395 * src/symtab.c (hack_all_symbols): Update prototype.
1396 * src/builtin.c (dump_symbol, set_trace): Update signature.
1397 (m4_dumpdef, m4_traceon, m4_traceoff): Update callers.
1398 (mkstemp_helper, m4_m4wrap, expand_ranges, m4_translit): Allow
1400 * src/debug.c (trace_flush): Likewise.
1401 * src/freeze.c (reload_frozen_state): Likewise.
1402 * src/input.c (push_file, push_string_finish, push_wrapup):
1403 (token_bottom, next_token): Likewise.
1404 * src/m4.c (main): Likewise.
1406 * doc/m4.texinfo (Invoking m4): Update according to POSIX 200x
1408 * src/m4.h (m4_path_search): Tweak signature.
1409 * src/path.c (m4_path_search): Likewise.
1410 * src/builtin.c (include): Update caller.
1411 * src/m4.c (main): Allow -D, -U, -t, and -s to be interspersed
1412 with file names. Don't write to **argv.
1413 (process_file): New helper method.
1414 * NEWS: Document this fix.
1416 2006-10-31 Eric Blake <ebb9@byu.net>
1418 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import strstr'.
1419 * doc/m4.texinfo (Translit): Improve the documentation.
1420 * src/builtin.c (m4_translit): Optimize to O(n) instead of O(n^2)
1422 (m4_index): Simplify, and speed up slightly.
1423 * NEWS: Document this fix.
1425 2006-10-28 Eric Blake <ebb9@byu.net>
1427 * src/input.c (set_quotes): Don't allow empty end-quote with
1428 non-empty start-quote.
1429 (set_comment): Likewise for end-comment.
1430 * src/builtin.c (m4_changecom): Adjust caller.
1431 * doc/m4.texinfo (Changequote, Changecom): Update documentation to
1433 (Incompatibilities): Document another POSIX bug.
1434 * NEWS: Mention this change.
1436 2006-10-27 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
1438 * examples/Makefile.am (EXTRA_DIST): Distribute recently-added
1441 2006-10-26 Eric Blake <ebb9@byu.net>
1443 Silence -Wwrite-strings -Wpointer-arith warnings.
1444 * src/builtin.c (define_user_macro): Allow NULL argument.
1445 (m4_builtin, m4_indir): Cast away const of "".
1446 * src/format.c (format): Likewise.
1447 * src/macro.c (collect_arguments): Likewise.
1448 (expand_macro): Avoid math on void*.
1449 * src/m4.c (main): Adjust caller.
1450 * src/output.c (freeze_diversions): Detect off_t overflow.
1452 * src/input.c (pop_input): Remove unnecessary code.
1454 2006-10-25 Eric Blake <ebb9@byu.net>
1456 * src/symtab.c (symtab_init): Avoid size_t overflow.
1457 * src/output.c (make_diversion): Avoid size_t overflow.
1458 * doc/m4.texinfo (Diversions): Test this fix.
1459 * src/input.c (input_block): Remove unused member. Reduce size
1461 (push_file, pop_input): Avoid useless assignment.
1462 * NEWS: Document the bug fix.
1464 Redo location tracking. Instead of having just files track the
1465 line to return to when popping input, now all input blocks track
1467 * src/input.c (INPUT_STRING_WRAP, INPUT_FILE_INIT): No longer
1469 (input_block): Have line and file storage for all input types, and
1470 rename some members.
1471 (input_change): New global flag.
1472 (push_file, push_macro, push_string_init, push_wrapup): Store
1474 (push_string_finish, pop_input, pop_wrapup): Notice changes in
1476 (peek_input): Adjust to new member names.
1477 (next_char, next_char1): Adjust location if needed.
1478 (skip_line): Simplify restoring location.
1479 * doc/m4.texinfo (Location): Augment the test to catch line
1480 location of expansion of multi-line arguments.
1481 Reported by Stepan Kasal.
1483 2006-10-23 Eric Blake <ebb9@byu.net>
1485 * doc/m4.texinfo (Macro Arguments): Document that leading space
1486 in argument collection stops at macro expansion.
1487 (Incompatibilities): Document POSIX whitespace wording issue.
1489 2006-10-20 Eric Blake <ebb9@byu.net>
1491 * doc/m4.texinfo: Trailing '@comment' doesn't format nicely in
1492 TeX, so recognize '@w{ }' instead. Likewise, @code{_name} at the
1493 end of a TeX line splits incorrectly.
1494 (Foreach, Improved foreach): Write these sections, borrowing ideas
1495 from CVS head and from m4sugar.
1496 * checks/get-them: Accomodate new way to show trailing space in
1498 * examples/foreach.m4: Make usable in documentation.
1499 * examples/foreachq.m4: New file.
1500 * examples/foreachq2.m4: New file.
1501 * examples/foreach2.m4: New file.
1502 * NEWS: Document the documentation updates.
1504 2006-10-19 Eric Blake <ebb9@byu.net>
1506 * src/builtin.c (mkstemp_helper, m4_mkstemp): New functions.
1507 (m4_maketemp): Provide traditional behavior.
1508 * doc/m4.texinfo (Mkstemp): Rename from Maketemp. Document the
1509 new `mkstemp' macro and the flaws of the old `maketemp'.
1510 (Incompatibilities): Move maketemp discussion to...
1511 (Extensions): ...here, since -G now supresses the GNU extension.
1512 * NEWS: Document this.
1514 * examples/forloop.m4: Simplify.
1515 * examples/forloop2.m4: New file.
1516 * examples/quote.m4: New file.
1517 * doc/m4.texinfo (Loops): Rename to...
1518 (Shift): ...this node.
1519 (Forloop, Foreach, Improved forloop, Improved foreach): New
1522 2006-10-17 Eric Blake <ebb9@byu.net>
1524 * m4/gnulib-cache.m4: Update with 'gnulib-tool --import
1526 * configure.ac (AC_CONFIG_HEADERS): Create config.h alongside
1527 gnulib headers, rather than in top directory.
1528 * src/Makefile.am (AUTOMAKE_OPTIONS): Add nostdinc, to reduce make
1531 2006-10-16 Eric Blake <ebb9@byu.net>
1533 * doc/m4.texinfo: Backport some minor cleanups from head.
1534 (Cleardivert): Rename from cleardiv.
1536 * doc/m4.texinfo (Invoking m4): Promote to a chapter, instead of
1537 a section of Preliminaries.
1538 (Operation modes, Preprocessor features, Limits control)
1539 (Frozen state, Debugging options, Command line files): Subdivide
1541 (Input processing, Quoting Arguments, Define, Arguments)
1542 (Cleardiv, Format, M4exit): Fix grammar of references.
1543 (Inhibiting Invocation, Macro Arguments, Builtin, Trace)
1544 (Debug Levels, Debug Output, Include, Search Path, Divert)
1545 (Platform macros, Syscmd, Location, Extensions): Point to new
1547 (Top, Loops, Include, Undivert, Location, Incompatibilities):
1548 Improve file references.
1550 2006-10-14 Eric Blake <ebb9@byu.net>
1552 * m4/input.c (file_clean): Don't close stdin twice, POSIX says it
1554 Reported by Ralf Wildenhues.
1556 * src/builtin.c (m4_undivert): Check for read error.
1558 2006-10-13 Eric Blake <ebb9@byu.net>
1560 * src/m4.h (UNIX, W32_NATIVE, OS2): Move platform checks after
1561 header files are included, since <unistd.h> can affect the tests.
1563 Reported by Martin Koeppe.
1565 Backport head's usage of clean-temp module, as it is cleaner than
1566 using tmpfile-safer.
1567 * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import
1568 clean-temp closeout', and remove tmpfile-safer.
1569 * src/m4.h (includes): Adjust.
1570 (m4_path_search): Rename from path_search, to avoid collision
1572 * src/m4.c (main): Install closeout handler. Adjust caller.
1573 (usage): Now done by closeout module.
1574 * src/builtin.c (m4_m4exit): Likewise.
1575 (m4_undivert, include): Adjust callers.
1576 * src/freeze.c (reload_frozen_state): Likewise.
1577 * src/path.c (m4_path_search): Rename from path_search.
1578 * src/output.c (output_temp_dir): New variable.
1579 (cleanup_tmpfile, m4_tmpfile): New functions, from head.
1580 (insert_diversion, make_room_for): Use them.
1581 * doc/m4.texinfo (Diversions): Document this, and add a test.
1582 (Improved fatal_error): Fix typo.
1583 (Maketemp): Port test to mingw, and no longer hide from
1585 * NEWS: Document the change in TMPDIR behavior.
1587 * configure.ac (m4_pattern_forbid): Narrow the range of forbidden
1588 macros, to work with recent gnulib-tool update.
1590 * src/builtin.c (m4_builtin, m4_indir): Allow transparent
1591 handling of defn results.
1592 * doc/m4.texinfo (Builtin, Indir): Add test cases.
1593 * NEWS: Document this.
1595 2006-10-12 Eric Blake <ebb9@byu.net>
1597 * doc/m4.texinfo (Location): Fix typo in previous commit.
1598 (Changeword): Catch one more case.
1599 * src/input.c (skip_line): Fix case when outer file used macro to
1602 2006-10-11 Eric Blake <ebb9@byu.net>
1604 * src/input.c (enum input_type): Add additional types, to shave
1605 time off the common case.
1606 (push_wrapup): Wrapped strings remember location.
1607 (push_string_finish): Normal strings carry no location.
1608 (push_file): Start new files uninitialized.
1609 (peek_input, next_char_1): Optimize common cases by updating
1610 location only on new input types.
1611 (pop_input): Update to honor new input types.
1612 (skip_line, push_string_finish): Fix regression in previous patch
1613 when dnl is not followed by newline in included file.
1614 (push_string_init): Initialize all fields of INPUT_STRING sooner.
1615 (peek_token): Simplify.
1616 (peek_input): Don't pop input files on peek, so that __file__ and
1617 __line__ as last token of include file work correctly.
1618 * doc/m4.texinfo (History): Mention 1.4.8.
1619 (Answers): Split into sections, one per answer.
1620 (Improved exch, Improved cleardivert, Improved fatal_error): New
1622 (Dnl, M4wrap, Location, M4exit, Improved fatal_error): Update to
1623 new m4wrap location semantics.
1624 (Changeword): Add test that caught the regression.
1625 * NEWS: Document this.
1627 * src/macro.c (expand_macro): In macro expansion errors, report
1628 line number at open parenthesis.
1629 * src/input.c (next_token): Fix off-by-one bug in reporting end
1630 of file in unterminated comment and string.
1631 (file_names): New obstack, necessary since expand_macro now hangs
1632 on to file names longer than the files remain open.
1633 (input_init): Initialize new obstack.
1634 (push_file): Use new obstack. Delay updates to current_file
1635 until after expand_macro has restored state.
1636 (peek_input, next_char_1): Update current_file if necessary.
1637 (pop_wrapup): Release memory.
1638 * doc/m4.texinfo (Macro Arguments, Changequote, Changecom): Catch
1640 (Dnl): Update to the new location reporting rules.
1641 * NEWS: Document these changes.
1643 2006-10-10 Eric Blake <ebb9@byu.net>
1645 * src/macro.c (argc_stack, argv_stack): New variables for sharing
1646 obstacks across multiple macro calls.
1647 (expand_input): Initialize and tear down stack once per input
1648 file, instead of once per macro.
1649 (expand_macro): Reuse existing stacks when possible.
1650 (collect_arguments): Simplify slightly.
1652 * src/path.c (include_env_init): Fix botched patch application.
1653 Reported by Ralf Wildenhues.
1655 2006-10-09 Eric Blake <ebb9@byu.net>
1657 * src/m4.c (usage, main): Detect write failures to stderr.
1658 * src/builtin.c (m4_m4exit): Likewise.
1659 * NEWS: Document this.
1661 * src/macro.c (expand_macro): Allow --nesting-limit=0 to remove
1663 * NEWS: Document this.
1664 * doc/m4.texinfo (Invoking m4): Likewise.
1666 2006-10-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
1668 * src/path.c (include_env_init): Copy the string returned
1669 by getenv before overwriting it; POSIX disallows this.
1671 2006-10-09 Eric Blake <ebb9@byu.net>
1673 * src/m4.c (main): Defer debugfile until after --help.
1674 * configure.ac (AC_INIT): Bump version number.
1675 * NEWS: Start changes of 1.4.7a.
1677 2006-09-25 Eric Blake <ebb9@byu.net>
1680 * configure.ac (AC_INIT): Bump version number.
1681 * NEWS: Describe changes since 1.4.6.
1683 2006-09-21 Eric Blake <ebb9@byu.net>
1685 * doc/m4.texinfo (Invoking m4): Add clarification on option
1686 processing behavior.
1688 Reported by Mikhail Teterin.
1690 * bootstrap: Add --force option, based on idea from coreutils.
1691 * README: Document that ./bootstrap and autoreconf are for
1692 developers, and not lightly done in tarballs.
1694 2006-09-20 Eric Blake <ebb9@byu.net>
1696 * src/m4.c (usage, OPTSTRING, main): Rename -e to -i, and give
1697 deprecation warning on -e.
1698 * doc/m4.texinfo (Invoking m4, Extensions): Document this.
1699 * NEWS: Document this.
1701 2006-09-19 Eric Blake <ebb9@byu.net>
1703 * src/m4.c (usage, long_options, main, DEBUGFILE_OPTION): Rename
1704 -o/--error-output to --debugfile, and deprecate the former. This
1705 will allow a future release to be more consistent with other GNU
1706 tools, with -o/--output affecting stdout, not debug.
1707 * doc/m4.texinfo (Invoking m4, Debug Output): Document this.
1708 * NEWS: Document this.
1710 2006-09-14 Eric Blake <ebb9@byu.net>
1712 * src/m4.c (main): Warn on deprecated options -B, -S, -T, -N,
1713 --diversions. `m4 --help --version' now displays help, not
1715 (interactive, frozen_file_to_read, frozen_file_to_write): Move to
1717 (show_help, show_version): No longer needed.
1718 (long_options, DIVERSIONS_OPTION): Backport patch from head to
1719 distinguish between -N and --diversions in warning.
1720 * doc/m4.texinfo (Invoking m4): Document this.
1723 2006-09-11 Eric Blake <ebb9@byu.net>
1725 * src/Makefile.am (m4_LDADD): Add any gnulib dependent libraries.
1726 * src/debug.c (debug_flush_files) [UNIX]: Flush stdin if it is
1728 (debug_set_file): Use STDOUT_FILENO.
1729 * src/builtin.c (m4_m4exit): Flush stdin before exiting, to comply
1730 with POSIX in regards to unread input.
1731 * NEWS: Document this fix.
1732 * doc/m4.texinfo (Syscmd, Esyscmd, M4exit): Likewise.
1734 2006-09-07 Eric Blake <ebb9@byu.net>
1736 * m4/gnulib-cache.m4: Update to newer gnulib-tool.
1737 * src/m4.h (push_file): Change prototype.
1738 * src/input.c (push_file, peek_input, next_char_1): Only call getc
1739 once at EOF, to avoid double ^D on terminal stdin; regression from
1741 (push_file, pop_file): Allow reading stdin twice.
1742 * src/m4.c (main): Likewise.
1743 * src/builtin.c (include): Update caller.
1744 * NEWS: Document this change.
1745 * doc/m4.texinfo (Invoking m4, Incompatibilities): Likewise.
1746 (Syscmd): Add a test that failed before this patch.
1748 2006-09-07 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
1750 * checks/check-them: Quote $pwd.
1752 2006-09-05 Eric Blake <ebb9@byu.net>
1754 * src/builtin.c (define_macro): Warn on invalid macro name.
1755 * NEWS: Document this change.
1756 * doc/m4.texinfo: Fix typos.
1757 (Invoking m4, Macro Arguments, Pseudo Arguments, Defn, Indir)
1758 (Ifelse): Backport some improvements from head.
1760 2006-09-04 Eric Blake <ebb9@byu.net>
1762 * doc/m4.texinfo (Changeword): Skip test on mingw, where the
1763 native echo is braindead.
1764 * checks/check-them (strip_needed): Ignore \r in output. Now the
1765 testsuite will pass when cross-compiling from cygwin to mingw.
1767 * src/input.c (peek_input): Fix regression in handling macro
1768 without arguments as last token in file; debian bug 385720.
1769 (next_token): Always consume an input character.
1770 Reported by Andreas Schultz.
1771 * configure.ac (AC_INIT): Bump version number.
1772 * NEWS: Document this fix.
1773 * doc/m4.texinfo (History): Mention next version.
1774 (Changeword): Add example that exposes this bug.
1777 2006-08-25 Eric Blake <ebb9@byu.net>
1780 * configure.ac (AC_INIT): Bump version number.
1781 * NEWS: Describe changes since 1.4.5.
1783 * Makefile.maint (web-manual): Give up on VPATH build during
1784 distribution. But distributions are made so infrequently that
1785 this is not too much of a hardship.
1786 * Makefile.am (MAINTAINERCLEANFILES): Avoid error if lib/CVS/
1789 2006-08-24 Eric Blake <ebb9@byu.net>
1791 * src/builtin.c (m4_index, m4_substr, m4_translit): Similar to
1792 Solaris, produce output on just one argument.
1793 (m4_regexp, m4_patsubst): For consistency, do likewise.
1794 (m4_patsubst): Allow zero-length match at end of string.
1795 * doc/m4.texinfo (Sysval): Fix overfull hbox.
1796 (Bugs, Macro Arguments): Minor fixes.
1797 (Other tokens): Rearrange node order.
1798 (Index macro, Substr, Translit, Regexp, Patsubst): Add tests.
1799 * NEWS: Document these fixes.
1801 2006-08-22 Eric Blake <ebb9@byu.net>
1803 * src/input.c (pop_input): Avoid empty filename with -di option.
1804 * src/debug.c (debug_message_prefix): Put space before message.
1806 * m4/gnulib-cache.m4: We don't explicitly use alloca module.
1808 * m4/gnulib-cache.m4: Augment with gnulib-tool --import gnupload.
1809 * Makefile.maint (fetch): Simplify, now that we can use gnupload.
1811 * checks/check-them: State why a test is skipped.
1812 * doc/m4.texinfo (Changeword, Sysval, Maketemp): Likewise.
1814 * ChangeLog: Add copyright.
1815 * AUTHORS: Likewise.
1816 * BACKLOG: Likewise.
1820 * examples/COPYING: New file, add copyright for all the examples.
1821 * checks/get-them: Put copyright on testsuite files.
1823 2006-08-18 Eric Blake <ebb9@byu.net>
1825 Don't let unrelated child processes see too many files.
1826 * m4/gnulib-cache.m4: Augment with gnulib-tool --import cloexec.
1827 * src/builtin.c (m4_esyscmd, m4_regexp, m4_patsubst): Fix
1828 spelling in error message.
1829 * src/debug.c [!__STDC__]: Assume C89, and nuke old varargs.h.
1830 (debug_set_output): Close debug file on exec.
1831 * src/m4.h (includes): Add cloexec.h.
1832 * src/output.c (make_room_for): Close diversions on exec.
1833 * src/path.c (path_search): Close include files on exec.
1834 * NEWS: Document this.
1836 Regular expressions were leaking memory.
1837 * src/builtin.c (init_pattern_buffer, free_pattern_buffer): New
1839 (m4_regexp, m4_patsubst): Avoid memory leak.
1840 * src/input.c (init_pattern_buffer) [ENABLE_CHANGEWORD]: Make
1842 (set_word_regexp) [ENABLE_CHANGEWORD]: Avoid memory leak. Change
1843 from O(n^2) to O(n) for calculating word_start.
1844 (next_token, peek_token) [ENABLE_CHANGEWORD]: Treat word_start as
1845 O(1) bitmap, not O(n) search string.
1846 * NEWS: Document this fix.
1848 2006-08-17 Eric Blake <ebb9@byu.net>
1850 * NEWS: Document previous checkin.
1852 * src/builtin.c (substitute): Avoid core dump when accessing
1853 beyond bound of regular expression.
1854 Reported by Karl Nelson.
1855 * doc/m4.texinfo (Regexp): Add example that causes core dump on
1856 some architectures prior to this patch.
1859 2006-08-16 Eric Blake <ebb9@byu.net>
1861 * doc/m4.texinfo (Invoking m4, Debug Output): Fix wording to be
1862 clear that dumpdef does not always go to stderr.
1864 * src/builtin.c (m4_errprint): Flush buffers before printing to
1868 2006-08-15 Eric Blake <ebb9@byu.net>
1870 * src/builtin.c (m4_m4wrap, m4_errprint, m4_shift): Make blind,
1871 per debian bug 96075.
1872 * doc/m4.texinfo (Loops, M4wrap, Errprint): Document this change.
1873 (Changeword): Don't use shift as an example of a swallowed word.
1874 (Divert): Discuss fact that divert is an English word.
1875 Reported by Richard A Nelson.
1877 2006-08-14 Eric Blake <ebb9@byu.net>
1879 * doc/m4.texinfo (Invoking m4): Minor fixes.
1881 2006-08-12 Eric Blake <ebb9@byu.net>
1883 * doc/m4.texinfo (Arguments): Hint at better exch macro.
1884 (Answers): Provide a better definition.
1886 2006-08-09 Eric Blake <ebb9@byu.net>
1888 * doc/m4.texinfo (Incompatibilities): Document that m4 does not
1889 yet understand locales.
1890 * NEWS: Fix wording of a few items.
1892 2006-08-08 Eric Blake <ebb9@byu.net>
1894 Avoid printing `NONE:0:' in error messages.
1895 * src/m4.h (m4_error_at_line): New function.
1896 * src/m4.c (m4_error_at_line): Implement.
1897 * src/input.c (skip_line, input_init, next_token): Use "", not
1898 "NONE", for no file, since NONE can be a real file name.
1899 * src/macro.c (expand_argument): Likewise.
1900 * src/debug.c (debug_message_prefix, trace_header): Check for
1902 * doc/m4.texinfo (Dnl, M4wrap): Adjust accordingly.
1903 (Location): Document that synclines and internal message format
1904 are not impacted by redefining these macros.
1905 (M4exit): Hint at bug in fatal_error.
1906 (Answers): Provide workaround to match m4 output.
1908 * m4/gnulib-cache.m4: Augment with gnulib-tool --import verror.
1909 * src/m4.h (m4_error): New function.
1910 (M4ERROR, M4ERROR_AT_LINE): Reimplement without hacking around
1911 error module deficiencies.
1912 (reference_error, suppress_line): No longer needed.
1913 * src/m4.c (m4_error): Implement.
1914 (main): No longer need to install error callback.
1916 2006-08-04 Eric Blake <ebb9@byu.net>
1918 * src/m4.h (program_name): Declare.
1919 (suppress_line): New variable.
1920 (M4ERROR_AT_LINE): New macro.
1921 * src/m4.c (reference_error, main): Follow GNU Coding Standards
1922 for error message format.
1923 * src/input.c (skip_line, next_token): Use M4ERROR_AT_LINE.
1924 * src/macro.c (expand_argument): Likewise.
1925 * checks/check-them (examples): Adjust to new message format.
1926 * src/builtin.c (m4___program__): New builtin.
1927 * doc/m4.texinfo (Location): Split from Errprint into new node,
1928 and document __program__.
1929 (Builtin, Ifdef, Ifelse, Dumpdef, Trace, Debug Output, Dnl)
1930 (Include, Regexp, Patsubst, Incr, Eval): Adjust error message
1932 (Extensions): Document __program__.
1933 * NEWS: Document this change.
1935 2006-08-03 Eric Blake <ebb9@byu.net>
1937 Don't confuse leading `(' in comment or quote with start of
1938 argument collection.
1939 * src/m4.h (enum token_type): Add TOKEN_OPEN, TOKEN_COMMA,
1941 (peek_input): Make private to input.c.
1942 (peek_token): New prototype.
1943 * src/input.c (default_word_regexp): Reduce ifdefs.
1944 (peek_input): Make static.
1945 (next_token): Return new token types.
1946 (match_input, MATCH): Add argument consume, which controls
1947 whether match should be pushed back.
1948 (peek_token): New function.
1949 (token_type_string) [DEBUG_INPUT]: New function.
1950 * src/macro.c (expand_token, expand_argument, collect_arguments):
1951 Handle new token types.
1952 * doc/m4.texinfo (Changequote, Changecom): Document this.
1953 * NEWS: Document this.
1955 * src/stackovf.c (setup_stackovf_trap): Free memory on failure.
1957 * src/stackovf.c (setup_stackovf_trap): Gracefully avoid stack
1958 overflow detection when sigstack exists but is not implemented.
1959 Fixes debian bug 154053.
1961 Reported by David Perlin.
1963 2006-08-02 Eric Blake <ebb9@byu.net>
1965 * src/input.c (MATCH): Fix EOF detection on multi-byte comment
1968 2006-08-01 Eric Blake <ebb9@byu.net>
1970 * src/input.c (skip_line, next_token): Remember current file in
1971 case input file ends abruptly. Addresses debian bug 175365.
1972 (pop_input): Defer freeing storage that holds previous file
1974 (pop_wrapup): to here, after error message is issued.
1975 * src/macro.c (expand_argument): Remember current file in case
1976 input file ends abruptly.
1977 * doc/m4.texinfo (Macro Arguments, Dnl, Changequote, Changecom)
1978 (M4wrap): Adjust testsuite accordingly.
1979 (Errprint): Document line number limitation of m4wrap.
1980 * NEWS: Document this fix.
1983 2006-07-31 Eric Blake <ebb9@byu.net>
1985 * src/input.c (peek_input, next_char, match_input): Be eight-bit
1986 clean; fixes debian bug 311378.
1987 * doc/m4.texinfo (Syntax): Describe eight-bit handling.
1988 (Changequote, Changecom): Add examples to test this.
1989 * NEWS: Document this fix.
1991 Reported by Steven Augart.
1993 * doc/m4.texinfo: Whitespace fix.
1994 * checks/get-them: Avoid exceeding 14-char file name limit.
1997 2006-07-30 Eric Blake <ebb9@byu.net>
1999 * src/path.c (path_search): Detect allocation failure.
2001 Use native free when it is good enough.
2002 * m4/gnulib-cache.m4: Augment with gnulib-tool --import free.
2003 * src/builtin.c (define_user_macro, m4_regexp, m4_patsubst):
2005 * src/symtab.c (free_symbol): Likewise.
2006 * src/m4.c (xfree, main): Likewise.
2007 * src/m4.h (obstack_chunk_free): Likewise.
2008 * src/path.c (path_search): Likewise.
2009 * src/input.c (pop_wrapup, set_quotes, set_comment): Likewise.
2011 * doc/m4.texinfo (Errprint): Add example for last patch.
2012 * checks/check-them: Account for VPATH in latest example.
2014 2006-07-29 Eric Blake <ebb9@byu.net>
2016 * src/path.c (path_search): Add result parameter, so that
2017 -I can be accounted for. Debian bug 53685.
2018 * src/m4.h (path_search): Update prototype.
2019 * src/m4.c (main): Adjust callers.
2020 * src/freeze.c (reload_frozen_state): Likewise.
2021 * src/builtin.c (include, m4_undivert): Likewise.
2022 * NEWS: Document this change.
2023 Reported by Nicolas Lichtmaier.
2025 2006-07-28 Eric Blake <ebb9@byu.net>
2027 * Makefile.am (MAINTAINERCLEANFILES): Fix typo that tripped up
2028 several non-GNU makes.
2029 * src/stackovf.c (setup_stackovf_trap): Missed _ from yesterday.
2030 * src/m4.h: Likewise.
2031 * src/input.c (push_wrapup): Avoid compiler warning with Solaris
2034 2006-07-27 Eric Blake <ebb9@byu.net>
2036 * doc/m4.texinfo: Use @acronym{GNU} throughout.
2037 (History): Update for 1.4.6.
2039 * src/m4.h (_): Remove K&R cruft.
2040 * src/builtin.c: Likewise.
2041 * src/debug.c: Likewise.
2042 * src/eval.c: Likewise.
2043 * src/macro.c: Likewise.
2044 * src/stackovf.c: Likewise.
2046 * doc/Makefile.am (m4.1): Improve man page.
2047 * src/m4.c (usage): Improve --help output, including adding the
2048 bug reporting address.
2049 (main): Follow GNU Coding Standards for --version output.
2051 2006-07-26 Eric Blake <ebb9@byu.net>
2053 * doc/m4.texinfo: Use begin-quote, end-quote, begin-comment, and
2054 end-comment consistently, to match POSIX.
2056 * doc/m4.texinfo (Macro Arguments, Changequote, Changecom)
2057 (Dnl, M4wrap, Include): Document EOF issues, and add examples.
2058 (Incompatibilities): Document incompatibility of changecom
2059 vs. macro names, and of EOF in include.
2060 * src/input.c (next_token): Reject unterminated comments at EOF.
2061 (skip_line): Warn on unterminated dnl at EOF.
2062 * NEWS: Document these changes.
2064 2006-07-25 Eric Blake <ebb9@byu.net>
2066 * m4/gnulib-cache.m4: Update to reflect gnulib's split of
2067 stdio-safer into fopen-safer and tmpfile-safer.
2068 * src/m4.c: Remove redundant include.
2070 2006-07-24 Eric Blake <ebb9@byu.net>
2072 Fix bugs related to stream handling.
2073 * m4/gnulib-cache.m4: Augment with gnulib-tool --import
2074 unlocked-io stdio-safer stdlib-safer close-stream.
2075 * configure.ac (AC_CHECK_FUNCS_ONCE): Assume tmpfile; it can be
2076 provided by gnulib if needed.
2077 * src/output.c [! HAVE_TMPFILE]: Likewise.
2078 * src/m4.h (includes): Replace unistd, stdio, and stdlib with
2079 their safer counterparts.
2080 (retcode): New global variable.
2081 * src/input.c (pop_input): Check for read failure.
2082 * src/freeze.c (reload_frozen_state): Likewise.
2083 (produce_frozen_state): Check for write failure.
2084 * src/debug.c (debug_set_file): Likewise.
2085 * src/m4.c (usage, main): Likewise.
2086 (retcode): Make global.
2087 * src/builtin.c (m4_m4exit): Likewise. Ensure that the exit
2088 status is non-zero except when everything succeeds.
2089 * doc/m4.texinfo (M4exit): Document these changes.
2090 (Incompatibilities): Remove documentation of bug now fixed.
2091 * NEWS: Document these fixes.
2093 2006-07-22 Eric Blake <ebb9@byu.net>
2095 * src/format.c (format): Avoid compiler warning that str may be
2098 2006-07-21 Eric Blake <ebb9@byu.net>
2100 * src/m4.h [UNIX]: Add more platforms that are close enough to
2101 categorize as UNIX, but which don't predefine __unix__.
2102 Reported by Nelson H. F. Beebe.
2104 2006-07-20 Eric Blake <ebb9@byu.net>
2106 * m4/gnulib-cache.m4: gnulib-tool has changed again. Regenerate
2107 to explicitly ask for --assume-autoconf=2.60.
2109 2006-07-19 Eric Blake <ebb9@byu.net>
2111 * doc/m4.texinfo (Sysval): Avoid kill -1, since ksh traps SIGHUP
2112 and exits normally with 129.
2113 Reported by Nelson H. F. Beebe.
2116 * src/m4.h (EXIT_MISMATCH): Define.
2117 * src/freeze.c (reload_frozen_state): Detect version mismatch, by
2118 exiting with status 63.
2119 * src/m4.c (usage): Document this.
2120 * doc/m4.texinfo (Invoking m4, Using frozen files): Likewise.
2123 * doc/m4.texinfo (copying): Relax restriction on front-cover and
2126 2006-07-17 Eric Blake <ebb9@byu.net>
2128 * src/format.c (format): Support F, g, and G specifiers.
2129 * doc/m4.texinfo (Format): Document this.
2130 * NEWS: Document this addition.
2132 * doc/m4.texinfo (Builtin): Delete redundant text.
2134 * configure.ac (AC_INIT): Bump version number.
2135 * src/builtin.c (substitute): Bah. Fix buffer overrun.
2136 * NEWS: Document this fix.
2138 2006-07-15 Eric Blake <ebb9@byu.net>
2141 * configure.ac (AC_INIT): Bump version number.
2142 * NEWS: Describe changes since 1.4.4.
2144 * src/m4.c (usage): Document exit status.
2145 * doc/m4.texinfo: Use `exit status', not `exit code'.
2146 (Invoking m4): Document exit status.
2148 * bootstrap: Backport --help, --version from head.
2149 (func_update): New function, for easily grabbing up-to-date files
2151 * Makefile.maint (web-manual): Fix for VPATH builds.
2153 2006-07-14 Eric Blake <ebb9@byu.net>
2155 * doc/m4.texinfo: Global cleanup. Avoid @code{...}'d, as it
2156 looks bad in info. Use @deffn rather than @example for
2157 describing prototypes. Fix awkward wording and grammar.
2159 * src/builtin.c (substitute): Warn on bad escape sequences.
2160 Ignore trailing backslash.
2161 * doc/m4.texinfo (Regexp): Add documentation for this.
2162 * NEWS: Document this change.
2164 * src/builtin.c (m4_format, m4_indir): Warn on too few arguments.
2165 * doc/m4.texinfo (Defn, Builtin, Debug Levels, Debug Output): Add
2167 (Dnl): Update example to show side effects.
2168 * checks/get-them: Generate three digit test names.
2169 * checks/Makefile.in (CHECKS): Accomodate 100+ tests.
2171 2006-07-13 Eric Blake <ebb9@byu.net>
2173 * src/input.c (input_init): Simplify.
2174 (set_word_regexp): Treat empty string as default, since empty
2175 regexp would disable word parsing.
2176 * src/m4.c (user_word_regexp): Default to empty string.
2177 * src/builtin.c (builtin_tab): Make changeword blind.
2178 * doc/m4.texinfo (Changeword): Document this.
2179 * NEWS: Document this.
2180 * TODO: Knock off completed items.
2182 * src/builtin.c (m4_undefine, m4_popdef): Visit all arguments, not
2184 * doc/m4.texinfo (Undefine, Pushdef): Test this.
2185 * NEWS: Document this change.
2187 * src/builtin.c (numeric_arg): Treat empty string as 0, with a
2188 warning. Detect quoted leading space and overflow as warnings.
2189 (m4_eval): Treat empty radix as 10, and allow output in radix 1.
2190 Treat width as minimum number of digits, as required by POSIX.
2191 (m4_ifdef, m4_divert, m4_m4exit, m4_translit): Ignore extra
2193 (m4_substr): Likewise. Silently treat empty start as 0.
2194 (m4_undivert): Treat ` 1a' as file, not diversion 1.
2195 * src/eval.c (eval_lex): Parse radix 1 numbers.
2196 * doc/m4.texinfo (Invoking m4): Fix wording; there is more than
2197 one type of warning.
2198 (Manual): Document behavior of numeric parsing of empty string.
2199 (Divert, Incr): Document error handling.
2200 (Eval): Document radices better.
2201 (Incompatibilities): Document translit incompatibility.
2202 * NEWS: Document these changes.
2204 * Makefile.maint (fetch): Get gendocs from gnulib, not texinfo.
2205 (web-manual): Simplify.
2206 * m4/gnulib-cache.m4: Augment with gnulib-tool --import gendocs.
2207 * Makefile.am (EXTRA_DIST): Distribute gendocs.sh.
2208 (MAINTAINERCLEANFILES): Clean it as well.
2209 * doc/Makefile.am (EXTRA_DIST): Distribute gendocs_template.
2210 (MAINTAINERCLEANFILES): Clean it as well.
2212 2006-07-12 Eric Blake <ebb9@byu.net>
2214 * doc/m4.texinfo (Extensions): Document how to overcome
2215 implementation difference in > 9 positional parameters.
2217 * src/m4.c (usage): Sort within sections.
2218 (nesting_limit): Raise default from 250 to 1024.
2219 * doc/m4.texinfo: Use file name, not filename, per GNU coding
2220 standard. Use @option where appropriate.
2221 (Invoking m4): Sort to match --help output.
2222 (Debug Levels): Sort.
2223 (Frozen files): Sort and break into two nodes.
2225 * src/m4.c (nesting_limit): Raise default from 250 to 1024.
2226 * NEWS: Document raised -L limit.
2228 2006-07-11 Eric Blake <ebb9@byu.net>
2230 * Makefile.am (DISTCHECK_CONFIGURE_FLAGS): New macro, to
2231 stress-test changeword before a release.
2232 * doc/m4.texinfo: More doc cleanups.
2233 (Copying This Manual): New node; actually include the FDL in the
2235 * doc/Makefile.am (m4_TEXINFOS): Mention dependence on fdl.texi.
2236 * m4/gnulib-cache.m4: Augment with gnulib-tool --import fdl.
2237 * NEWS: Mention documentation improvements.
2239 * src/m4.h (OS2): New platform macro.
2240 * src/builtin.c (predefined_tab) [OS2]: Use it to give OS/2 a
2242 * doc/m4.texinfo (Platform macros): Document it.
2243 (Sysval): Remove non-portable test of system("").
2244 * NEWS: Document this change.
2245 Reported by Andreas Buening.
2247 2006-07-09 Eric Blake <ebb9@byu.net>
2249 * doc/m4.texinfo (Undivert): Fix typo in last commit.
2250 * src/m4.c (usage): Document M4PATH.
2251 * src/path.c (path_search): Reject empty string.
2252 * src/output.c (insert_diversion): Ignore diversion 0.
2253 * src/builtin.c (m4_undivert): Ignore empty string.
2254 * NEWS: Document this fix.
2256 2006-07-08 Eric Blake <ebb9@byu.net>
2258 * checks/get-them: Make filtering easier.
2259 * checks/check-them: Filter non-input lines, so line counts are
2260 more realistic in the documentation, and so changeword tests work
2261 even when dnl is disabled.
2262 * doc/m4.texinfo: Adjust example line numbers. Clean up
2263 front-matter, following autoconf's example.
2264 (Changeword): Enable tests, skipping if changeword not supported.
2265 (Define, Defn, Ifelse): Backport more examples from head.
2266 (Input processing, Answers): New nodes, backported from head.
2267 (Include): Expand test to cover empty filename.
2268 (Undivert): Add test of undivert(0).
2270 2006-07-07 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
2272 * doc/m4.texinfo: Fix spelling errors.
2274 2006-07-07 Eric Blake <ebb9@byu.net>
2278 * doc/Makefile.am (m4.1): No need to go through a temporary file;
2279 this also ensures timestamps are updated.
2280 * src/m4.h (includes): Require config.h. Assume string.h,
2281 stdlib.h, errno. Include error.h, exit.h, and xalloc.h rather
2282 than prototyping ourselves.
2283 (builtin_func): Add parameter type-checking.
2284 (voidstar): Delete, now that we assume C89.
2285 * src/builtin.c, src/m4.c, src/macro.c, src/symtab.c: All users of
2287 * src/m4.c (xfree) [WITH_DMALLOC]: Avoid clash with dmalloc's
2290 2006-07-06 Eric Blake <ebb9@byu.net>
2292 * m4/gnulib-cache.m4: Augment with gnulib-tool --import
2294 * src/m4.h (includes): Add binary-io.h for O_BINARY.
2295 * src/freeze.c (produce_frozen_state): Use O_BINARY to remove
2296 #ifdef. Fixes patch from 2005-02-03 for cygwin.
2297 * NEWS: Mention this fix.
2299 * configure.ac (FUNC_SYSTEM_BROKEN): New check for OS/2 bug.
2300 * src/builtin.c (m4_syscmd): Work around OS/2 bug.
2302 * Makefile.am (SUBDIRS): Build . before src, so that autoheader
2303 runs first when needed.
2304 * doc/Makefile.am (m4.1): Backport rule from CVS head: build m4.1
2305 once in srcdir rather than multiple times in VPATH builds.
2307 2006-07-03 Eric Blake <ebb9@byu.net>
2309 * checks/check-them: Use portable = in test.
2310 * src/Makefile.am (AM_CPPFLAGS): Omit space between -I and
2311 directory, as required by Solaris cc. Include built headers, as
2312 required by Solaris make in VPATH build.
2313 * checks/Makefile.in: Use $(srcdir) where needed.
2314 (CHECKS): Factor $(srcdir) into macro.
2315 (DISTFILES): Likewise. Automake takes care of distributing
2318 (Makefile): Use modern syntax of config.status.
2319 * doc/m4.texinfo (Loops, Include, Undivert, Incompatibilities):
2320 Avoid overfull and underfull hboxes in dvi.
2322 Fix 'make check' in VPATH build. All files included by testsuite
2323 now live in a single directory. Use forloop.m4 in testsuite.
2324 * checks/incl.m4, checks/foo, checks/wrapfifo.m4: Move from
2326 * examples/incl.m4, examples/foo, examples/wrapfifo.m4: ...to
2328 * checks/Makefile.in (DISTFILES): Don't distribute moved files.
2329 * examples/Makefile.am (EXTRA_DIST): Distribute new files.
2330 * checks/check-them: Avoid s/// when filename is in pattern.
2331 * examples/forloop.m4: Fix to match documentation.
2332 * doc/m4.texinfo (Include, Undivert, Incompatibilities): Reflect
2334 (Loops, Format): Actually use forloop.m4 in tests.
2336 2006-07-02 Eric Blake <ebb9@byu.net>
2338 * checks/Makefile.in (exec_prefix, prefix): New macros, so that
2339 $(bindir) works in installcheck.
2340 (check, installcheck): No longer change directory, so that
2341 distcheck works with a read-only builddir.
2342 * checks/check-them: Work when pwd is no longer builddir.
2344 2006-07-01 Eric Blake <ebb9@byu.net>
2346 * GNUmakefile: New file, borrowed from coreutils.
2347 * Makefile.am (EXTRA_DIST): Distribute GNUmakefile.
2348 * Makefile.maint (Makefile): Delete this rule, now that
2349 GNUmakefile includes Makefile.
2351 2006-06-30 Eric Blake <ebb9@byu.net>
2353 For compatibility with other m4 implementations, sysval returns
2354 signal<<8 rather than 0 if syscmd is terminated by a signal.
2355 * configure.ac (AC_CHECK_HEADERS_ONCE): Check for sys/wait.h.
2356 * src/builtin.c (include): Include sys/wait.h when stdlib.h does
2357 not provide wait macros.
2358 (WTERMSIG, WIFSIGNALED, WIFEXITED): More fallback macros.
2359 (M4SYSVAL_EXITBITS, M4SYSVAL_TERMSIGBITS): New helper macros.
2360 (m4_esyscmd): Set sysval to -1 on failure.
2361 (m4_sysval): Print 127 on failure, and accomodate signals if they
2363 * NEWS: Document this change.
2364 * doc/m4.texinfo (Platform macros, Esyscmd, Sysval): Fix typos in
2366 * checks/check-them: Likewise.
2367 * src/debug.c (debug_set_file): Work around mingw fstat bug.
2369 * src/m4.h (UNIX, W32_NATIVE): Improve platform detection macros.
2370 * src/freeze.c (produce_frozen_state): Use new spelling of
2372 * src/builtin.c (predefined_tab): Add __windows__ on non-unix
2374 (m4_syscmd, m4_esyscmd): The empty command is successful.
2375 * doc/m4.texinfo (Shell commands): Rename from UNIX commands.
2376 Document platform-dependence of system().
2377 (Syscmd): Add example.
2378 (Esyscmd): Make example more robust, and actually demonstrate
2380 (Sysval): Expand test to cover esyscmd code path, and to check
2381 that empty command is successful. Add conditional check for
2383 (Other Incompatibilities): Move platform macros from here...
2384 (Platform macros): ...to this new node. Add windows macro.
2385 Check that exactly one platform macro is provided.
2386 * checks/check-them: Improve trap cleanup. Tolerate dirname and
2387 .exe in error messages. Allow for skipping checks.
2388 * configure.ac (HAVE_EFGCVT): Kill dead configure check.
2389 * NEWS: Document platform macros.
2391 2006-06-29 Eric Blake <ebb9@byu.net>
2393 Fix buffer overrun bug.
2394 * m4/gnulib-cache.m4: Augment with gnulib-tool --import
2396 * src/format.c [HAVE_EFGCVT]: Delete this code, and use *printf
2397 variant instead, since [efg]cvt are obsolete and our use of them
2398 was buggy (savannah sr #104303).
2399 (format): Fix buffer overflow by using xasprintf.
2400 * doc/m4.texinfo (Format): Expand format test to catch both bugs.
2401 * NEWS: Document this fix.
2403 * configure.ac (AC_CANONICAL_HOST, AC_CANONICAL_BUILD): Allow
2405 (AC_CACHE_CHECK): Cache search for ecvt.
2407 2006-06-27 Eric Blake <ebb9@byu.net>
2409 * doc/m4.texinfo (Eval): Document 32-bit signed limitations
2410 required by POSIX, and add example that exposed core dump on x86
2412 (Incompatibilities): Document incompatibility in eval precedence.
2413 * src/eval.c (shift_term): Explicitly mask, to avoid undefined
2415 (mult_term): Explicitly check for -1, to avoid SIGFPE on x86.
2416 * NEWS: Document this change.
2418 * doc/m4.texinfo: Use @noindent consistently.
2419 (Quoting Arguments): Document that unquoted parentheses group
2421 (Pseudo Arguments): Expand tests to show this.
2422 (Incompatibilities): Contrast traditional behavior of
2425 2006-06-24 Eric Blake <ebb9@byu.net>
2427 * configure.ac (AC_PREREQ): Autoconf 2.60 is now released.
2428 (AC_CHECK_HEADERS_ONCE): Use this new feature.
2429 (AC_CHECK_FUNCS_ONCE): Likewise.
2431 2006-06-23 Eric Blake <ebb9@byu.net>
2433 * doc/m4.texinfo: Quoting cleanup throughout - follow
2434 autoconf-recommended style of one level of quote per parenthesis
2435 in the normal case. Adjust error messages to match GNU coding
2436 standards (and to allow 'make check' to pass again).
2437 (Quoted strings, Inhibiting Invocation): Turn more examples into
2439 (Comments): Resolve FIXME by adding example.
2440 (Define): Add example about underquoting.
2441 (Defn): Add example about use of $0.
2442 (Indir, Format): Resolve FIXME done in last commit.
2443 (Ifelse): Add example about creating blind macro.
2444 (Debugging): Fix grammar.
2445 (Dnl): Add example about dnl with arguments.
2446 (M4wrap): Be explicit that LIFO order is non compliant, and will
2448 (Undivert): Resolve FIXME by adding example.
2449 (Frozen files): Document that m4wrap and sysval will not work
2450 consistently until m4 2.0.
2451 (Incompatibilities): Document another POSIX compliance bug, this
2452 time with changequote. Document a traditional incompatibility
2453 with partial input spanning file boundaries.
2455 Make error messages more consistent with GNU coding standards -
2456 start with lower case, and don't end sentence with punctuation.
2457 * src/debug.c (trace_pre): Update message wording.
2458 * src/eval.c (evaluate, cmp_term, shift_term, mult_term):
2460 * src/freeze.c (produce_frozen_state, issue_expect_message),
2461 (reload_frozen_state): Likewise.
2462 * src/input.c (push_string_init, pop_init, init_macro_token),
2463 (peek_input, next_char_1, set_word_regexp, next_token): Likewise.
2464 * src/m4.c (stackovf_handler, main): Likewise.
2465 * src/macro.c (expand_token, expand_argument, call_macro),
2466 (expand_macro): Likewise.
2467 * src/output.c (make_room_for, output_text, insert_file),
2468 (freeze_diversions): Likewise.
2469 * src/symtab.c (symtab_init, lookup_symbol): Likewise.
2471 * src/builtin.c (builtin_tab): Make format and indir blind.
2472 (substitute): Prefer "Warning:" vs. "ERROR:" in messages.
2473 * NEWS: Mention the change to builtins.
2475 2006-06-22 Eric Blake <ebb9@byu.net>
2477 Robustify frozen file format.
2478 * src/freeze.c (reload_frozen_state): Add GET_DIRECTIVE helper
2479 macro. Require V first, and only accept it once. For F, use
2480 placeholder if builtin is not found, rather than warning.
2481 * src/m4.h (m4_placeholder): New prototype.
2482 * src/builtin.c: Unify error message style.
2483 (m4_placeholder): New function, warn if invoked.
2484 (builtin_tab): Add m4_placeholder.
2485 (m4_defn): Warn if placeholder is encountered.
2486 (find_builtin_by_addr): Handle placeholder.
2487 (find_builtin_by_name): Return placeholder on failure.
2488 (m4_builtin): Treat placeholder as undefined.
2489 * doc/m4.texinfo (Frozen files): Document changes in V and F.
2490 * NEWS: Document this change.
2491 Reported by Bruno Haible.
2493 * doc/m4.texinfo: Whitespace cleanup. TABs are evil in texinfo.
2494 (tabchar): New macro, so that 'make check' still works.
2495 (Invoking m4): Document that ignored compatibility options -B, -S,
2496 and -T each consume an argument.
2497 * checks/get-them: Honor @tabchar{}.
2499 Avoid compiler warnings during -DDEBUG.
2500 * src/m4.h (M4_GNUC_ATTRIBUTE, M4_GNUC_UNUSED): New macros.
2501 [DEBUG]: Also imply DEBUG_OUTPUT and DEBUG_STKOVF.
2502 * src/input.c (print_token) [DEBUG_INPUT]: Use correct format.
2503 (lex_debug) [DEBUG_INPUT]: Fix to compile. Mark unused.
2504 (next_token) [DEBUG_INPUT]: Print before returning.
2505 * src/path.c (include_dump) [DEBUG_INCL]: Mark unused.
2506 * src/symtab.c (symtab_debug) [DEBUG_SYM]: Mark unused.
2508 Avoid mkstemp bugs on various platforms.
2509 * m4/gnulib-cache.c: Augment with gnulib-tool --import mkstemp.
2510 * src/output.c [! HAVE_MKSTEMP]: Delete.
2511 * configure.ac (AC_CHECK_FUNCS): Don't check for mkstemp.
2512 * src/m4.h (mkstemp) [! HAVE_MKSTEMP]: Prototype, if needed.
2513 * NEWS: Document this.
2515 * Makefile.am (EXTRA_DIST): Distribute gnulib-cache.m4.
2516 Reported by Bruno Haible.
2518 2006-06-21 Eric Blake <ebb9@byu.net>
2520 Avoid obsolete sigstack when POSIX sigaltstack is available.
2521 * src/m4.c: Blindly assume signal.h, since stackovf.c and gnulib
2523 * configure.ac (AC_CHECK_HEADERS): Likewise.
2524 (AC_CHECK_TYPES): New check for siginfo_t, since siginfo.h is
2525 obsolete and most hosts now have it in signal.h.
2526 (AC_CHECK_MEMBERS): New check for sigaction.sa_sigaction.
2527 (AC_CACHE_CHECK): Cache decision to use stackovf.
2528 (AC_EGREP_HEADER): Switch to AC_CHECK_TYPES.
2529 * src/stackovf.c (DEBUG_STACKOVF): Remove unused define.
2530 (SA_RESETHAND, SA_SIGINFO): Provide fallback definitions, to
2531 simplify later code.
2532 (PARAM_STACKOVF, PARAM_NOSTACKOVF): Move further away from NULL,
2533 in case of dereferencing a member of a NULL pointer.
2534 (sigsegv_handler) [HAVE_STRUCT_SIGACTION_SA_SIGACTION]: Define a
2536 (setup_stackovf_trap): Use NULL instead of 0 for pointers, use
2537 EXIT_FAILURE in error, indent preprocessor directives.
2538 [HAVE_SIGALTSTACK && HAVE_SIGINFO_T]: Depend on siginfo_t, not
2540 [HAVE_SIGACTION && defined SA_ONSTACK]: Prefer POSIX handler.
2541 Reported by Santiago Vila.
2543 2006-06-19 Eric Blake <ebb9@byu.net>
2547 2006-06-18 Andreas Buening <andreas.buening@nexgo.de> (tiny change)
2549 * checks/Makefile.in (PATH_SEPARATOR): New macro.
2550 (check, installcheck): Use it, for OS/2.
2552 2006-06-18 Eric Blake <ebb9@byu.net>
2554 Consistently use "GNU M4" as package name, "m4" as executable
2556 * NEWS: Document previous fix.
2558 * README: Fix grammar. Document that --enable-changeword is on
2560 * doc/m4.texinfo (Top, Changeword): Likewise.
2561 (Sysval): Enhance this test.
2562 (History): Backport this section from CVS head, and update.
2564 2006-06-18 Bruno Haible <bruno@clisp.org> (tiny change)
2565 Eric Blake <ebb9@byu.net>
2567 * src/builtin.c (WEXITSTATUS): Provide fallback definition.
2568 (m4_esyscmd): Set sysval to 0xffff, to accomodate both
2569 big-endian and little-endian wait status definitions.
2570 (m4_sysval): Use WEXITSTATUS.
2571 Reported by Andreas Buening.
2573 2006-06-18 Eric Blake <ebb9@byu.net>
2575 * configure.ac (AC_INIT): Bump version number.
2576 * NEWS: Describe changes in 1.4.4c.
2578 2006-06-17 Eric Blake <ebb9@byu.net>
2580 Beta Release 1.4.4b:
2581 * configure.ac (AC_INIT): Bump version number.
2582 * NEWS: Describe changes since 1.4.4.
2583 * Makefile.maint (cvs-news): Accomodate copyright line wrapping.
2585 * Makefile.am (MAINTAINERCLEANFILES): Clean files added by
2587 * checks/Makefile.in (maintainer-clean): Add missing target.
2588 * COPYING: Remove generated file from CVS.
2590 2006-06-16 Eric Blake <ebb9@byu.net>
2592 * checks/Makefile.in (DISTFILES): Distribute wrapfifo.m4.
2594 2006-06-15 Eric Blake <ebb9@byu.net>
2596 * checks/wrapfifo.m4: New file. Use it...
2597 * doc/m4.texinfo (Incompatibilities): here, in a new test case to
2598 demonstrate how to get POSIX behavior of m4wrap prior to m4 2.0.
2600 * src/m4.h (to_uchar): New function.
2601 * src/eval.c (eval_lex): Use it to avoid passing signed char to
2602 isdigit, isalpha, isupper, islower, isspace, isalnum.
2603 * src/builtin.c (expand_user_macro): Likewise.
2604 * src/format.c (format): Likewise.
2605 * src/macro.c (expand_argument): Likewise.
2606 * NEWS: Document this security fix.
2609 * src/symtab.c (lookup_symbol): Use invalid, not illegal.
2610 * src/freeze.c (reload_frozen_state): Fix typo in message.
2611 (produce_frozen_state): Standardize on builtin, not built-in.
2612 * src/builtin.c (numeric_arg, bad_argc): Likewise.
2614 * configure.ac (M4_EARLY, M4_INIT): Use gnulib.
2615 (AC_PROG_RANLIB, AC_AIX, AC_MINIX, AC_CHECK_HEADERS),
2616 (AC_FUNC_ALLOCA, AC_REPLACE_FUNCS): Avoid checks now done by
2618 * Makefile.am (ACLOCAL_AMFLAGS): New entry, for gnulib.
2619 * m4/gnulib-cache.m4: New file, from gnulib.
2620 * bootstrap: Invoke gnulib-tool --update.
2621 * src/m4.c (main): Cast away const.
2622 * NEWS: Document that regex is updated.
2625 2006-06-08 Eric Blake <ebb9@byu.net>
2627 * configure.ac (changeword): Work even when changeword is not a
2629 (AC_PROG_AWK, AC_PROG_INSTALL, AC_PROG_MAKE_SET, AC_HEADER_STDC):
2630 Delete; now done by automake.
2631 (AC_ISC_POSIX, AC_C_CONST): Delete; now obsolete.
2633 2006-06-07 Eric Blake <ebb9@byu.net>
2635 * lib/regex.c (bcmp_translate): Canonicalize type name.
2636 * doc/Makefile.am (MAINTAINERCLEANFILES): Fix typo.
2637 * configure.ac (changeword): Disable changeword for the creation
2638 of configure, in case of bootstrapping with an m4 configured with
2639 --enable-changeword.
2641 Distribute a rudimentary man page.
2642 * Makefile.am (SUBDIRS): Move doc after src so that 'm4 --help'
2644 * doc/Makefile.am (man_MANS, EXTRA_DIST, MAINTAINERDISTCLEAN),
2645 (SUFFIXES, m4.1): New macros and rules to build m4.1.
2647 2006-06-06 Eric Blake <ebb9@byu.net>
2649 * lib/regex.c (re_match_2_internal, bcmp_translate): Avoid
2650 compiler warnings at -O2.
2651 * lib/getopt.c (_getopt_internal): Likewise.
2653 Cleanup of previous patches.
2654 * src/input.c (struct input_block): Remove traced member.
2655 (push_macro, init_macro_token): Don't pass trace status around.
2656 * src/m4.h (struct token_data): Remove traced member.
2657 (struct symbol, struct builtin): Reduce unused space.
2658 (TOKEN_DATA_FUNC): Simplify.
2659 (TOKEN_DATA_FUNC_TRACED): Remove unused macro.
2660 (push_macro, define_builtin): Remove unused parameter.
2661 * src/builtin.c (define_builtin, builtin_init, define_macro),
2662 (m4_defn): Don't pass trace status around.
2663 * src/macro.c (expand_argument): Likewise.
2664 * src/freeze.c (reload_frozen_state): Likewise.
2665 * src/symtab.c: Whitespace cleanup.
2666 * NEWS: Clean up wording.
2667 * doc/m4.texinfo (Undefine, Dumpdef, Trace): Cleanup wording;
2668 ensure tests actually expose bugs prior to today's patches.
2670 Trace status of builtins is no longer inherited across
2671 define(...,defn(...)). Fixes bug that autom4te had been working
2673 * src/builtin.c (define_builtin): Don't override trace status.
2674 * doc/m4.texinfo (Trace): Add test for this.
2675 * NEWS: Document this.
2677 When changing macro definitions inside the arguments to the macro,
2678 consistently preserve the old definition that was in effect before
2679 argument collection, similar to the C pre-processor.
2680 Reported by John Brzustowski.
2681 * NEWS: Document this change.
2682 * doc/m4.texinfo (Macro Arguments, Undefine, Dumpdef): Document
2683 this policy, and add tests that expose core dumps prior to this
2685 * src/m4.h (struct symbol): New members to track when a symbol is
2686 still in use after removal from the symbol table.
2687 (SYMBOL_PENDING_EXPANSIONS, SYMBOL_DELETED): Define.
2688 (free_symbol): Prototype.
2689 * src/macro.c (expand_macro): Track pending expansions of a
2690 symbol. On completion, if a symbol is deleted and no longer
2691 pending, free its memory.
2692 * src/symtab.c (free_symbol): Export. Don't free memory if symbol
2694 (lookup_symbol) <SYMBOL_INSERT>: Create new entry when old entry
2696 (lookup_symbol) <SYMBOL_DELETE, SYMBOL_POPDEF>: Mark entries still
2697 in use as deleted and remove from the table without freeing
2699 (symtab_print_list) [DEBUG_SYM]: More debug output.
2701 * src/symtab.c (hack_all_symbols): Allow certain modifications of
2702 the symbol table during traversal.
2703 * src/builtin.c (set_trace): Replace SYMBOL_DELETE with
2704 SYMBOL_POPDEF, since only the latter is safe with
2707 Solve crash when passing "indir(`foo')" to "m4 -tfoo".
2708 * src/symtab.c (lookup_symbol) <SYMBOL_DELETE, SYMBOL_POPDEF>:
2709 Preserve placeholder when macro is being traced.
2710 * src/builtin.c (m4_ifdef, m4_indir): A traced but undefined
2711 symbol is not defined.
2712 (set_trace): Remove placeholder when no longer traced.
2713 (m4_traceon): On named traces, always reserve a slot in the
2715 (m4_traceoff): Don't warn about untracing a nonexistent symbol.
2716 * NEWS: Document new trace behavior.
2717 * doc/m4.texinfo (Trace): Tracing by name now consistently works
2718 no matter whether that macro is currently defined.
2719 (Incompatibilities): Document differences between traditional and
2722 2006-06-04 Paul Eggert <eggert@cs.ucla.edu> (tiny change)
2723 Eric Blake <ebb9@byu.net>
2725 * src/m4.h (hash_table_size): Now size_t instead of int.
2726 * src/m4.c (hash_table_size): Likewise.
2727 (main): Adjust to this; use atol rather than atoi.
2728 * src/symtab.c: Include <limits.h>, for CHAR_BIT.
2729 (symtab_init, lookup_symbol, hack_all_symbols):
2730 Use size_t for sizes and indexes, not int.
2731 (symtab_print_list) [DEBUG_SYM]: Likewise.
2732 (hash): Likewise. Don't case-fold in the hash function.
2733 Shift by 7, not 3, for consistency with gnulib/lib/hash.c.
2734 Don't assume hash word is 32 bits.
2735 * NEWS: Document this change.
2737 2006-06-04 Eric Blake <ebb9@byu.net>
2739 * src/symtab.c (symtab_debug, symtab_print_list) [DEBUG_SYM]: Fix
2740 to allow compilation, for use in debugger.
2741 (profiles, current_mode) [DEBUG_SYM]: New variables.
2742 (show_profile, profile_strcmp) [DEBUG_SYM]: New methods for
2743 determining hash table performance.
2745 2006-05-31 Eric Blake <ebb9@byu.net>
2746 John Brzustowski <jbrzusto@fastmail.fm>
2748 * src/input.c (input_stack): Delete; use current_input instead.
2749 (wrapup_stack): Dynamically allocate, so that recursion is handled
2751 (push_wrapup): Use current wrapup stack.
2752 (pop_wrapup): Rotate wrapup stack to current, and create new
2754 (input_init): Dynamically allocate stacks.
2755 * NEWS: Update, now that recursive m4wrap can no longer cause
2758 2006-05-31 Eric Blake <ebb9@byu.net>
2760 * lib/getopt.c: Fix copyright year.
2761 * lib/obstack.c: Ditto.
2762 * src/builtin.c: Ditto.
2764 2006-05-30 Eric Blake <ebb9@byu.net>
2766 * doc/m4.texinfo (M4wrap): Add test to expose m4wrap bug.
2767 Reported by John Brzustowski.
2768 (Incompatibilities): Document known POSIX incompatibilities.
2771 2006-05-29 Eric Blake <ebb9@byu.net>
2773 * doc/m4.texinfo (Maketemp): Work even when running 'make check'
2777 * Makefile.am: New file.
2778 * doc/Makefile.am: Ditto.
2779 * examples/Makefile.am: Ditto.
2780 * lib/Makefile.am: Ditto.
2781 * src/Makefile.am: Ditto.
2782 * acinclude.m4: New file, renamed from aclocal.m4.
2783 * configure.ac (AM_INIT_AUTOMAKE): Invoke new macro.
2784 (AC_ARG_PROGRAM): Now redundant.
2785 (STACKOVF): Turn into automake conditional.
2786 (AC_CONFIG_COMMANDS): stamp-h is a command, not a file.
2787 * checks/Makefile.in: Converting this dir to automake was not
2788 trivial; for now, just add missing targets demanded by top-level.
2789 * INSTALL: Remove files that are now generated from CVS.
2790 * Makefile.in: Ditto.
2791 * aclocal.m4: Ditto.
2792 * install-sh: Ditto.
2793 * mkinstalldirs: Ditto.
2794 * doc/Makefile.in: Ditto.
2795 * doc/texinfo.tex: Ditto.
2796 * examples/Makefile.in: Ditto.
2797 * lib/Makefile.in: Ditto.
2798 * src/Makefile.in: Ditto.
2800 * AUTHORS: Backport from CVS head, and update.
2801 * doc/m4.texinfo (Changeword): Fix examples to match behavior.
2803 2006-05-27 Eric Blake <ebb9@byu.net>
2805 * lib/regex.c (regex_compile): Kill compiler warnings.
2806 * lib/getopt.c: Likewise.
2807 * lib/obstack.c: Likewise.
2808 * src/builtin.c (builtin_init): Likewise.
2809 * src/path.c (path_search): Likewise.
2811 * doc/m4.texinfo: Fix usage of a vs. an.
2812 (Loops, Include, Cleardiv, Patsubst, Format, M4exit): Kill
2813 overfull hbox warnings.
2814 (Inhibiting Invocation, Divert, Maketemp, M4exit): Add new tests.
2816 * configure.ac: Update to autoconf 2.59. Forbid ^M4_. Fix
2818 * aclocal.m4 (fp_PROG_CC_STDC): Delete; now covered by autoconf.
2819 (fp_C_PROTOTYPES): Delete, GNU Coding Standards state we can now
2821 (M4_WITH_DMALLOC): Rename from fp_WITH_DMALLOC. Fix quoting.
2822 * src/m4.h (_): PROTOTYPES is no longer provided, assume C89.
2823 * src/Makefile.in: Delete remains of ansi2knr.
2824 * src/ansi2knr.1: Delete.
2825 * src/ansi2knr.c: Delete.
2827 2006-05-25 Eric Blake <ebb9@byu.net>
2829 * doc/m4.texinfo: Fix spelling errors. Use `invalid' instead of
2832 * doc/m4.texinfo (Francois): No longer needed as a tex variable.
2833 Reported by Karl Berry.
2835 2006-05-24 Eric Blake <ebb9@byu.net>
2837 * Makefile.in (html): New target.
2838 * doc/Makefile.in (html, m4.html): Likewise.
2839 (MAKEINFOHTML): New macro.
2840 * doc/m4.texinfo (Francois) [ifnottex]: Use newer texinfo
2842 (Regexp) [ifhtml]: Make cross-reference to emacs manual an
2844 Reported by Bob Badour.
2846 * THANKS: Update. Move reporter's email addresses here, instead
2849 2006-05-11 Eric Blake <ebb9@byu.net>
2852 * doc/m4.texinfo (Changequote): Give testsuite exposure to bug
2853 patched on 2005-12-04.
2854 Reported by Ilya N. Golubev.
2856 * bootstrap: New file, so that generated files need not be stored
2858 * Makefile.in (DISTFILES): Add bootstrap.
2860 Make testsuite less sensitive to doc changes.
2861 * doc/m4.texinfo: Use m4.input instead of filename.
2862 * checks/check-them (xerr): Turn m4.input into filename.
2863 * checks/Makefile.in (dist): Depend on stamp-checks.
2865 Portability updates for OS/2.
2866 * src/Makefile.in (EXEEXT, OBJEXT): Define.
2869 * lib/Makefile.in (OBJEXT): Define.
2871 * doc/Makefile.in (install, uninstall): Install info files into
2873 Reported by Andreas Buening.
2875 2006-05-09 Eric Blake <ebb9@byu.net>
2877 * install-sh: Update to newer upstream version.
2878 * mkinstalldirs: Likewise.
2879 Reported by Andreas Buening.
2881 * src/m4.c (main): Bump copyright year.
2882 * Makefile.in (datarootdir): Define, for autoconf 2.59c.
2883 * doc/Makefile.in (datarootdir): Likewise.
2885 2006-05-08 Eric Blake <ebb9@byu.net>
2888 * doc/m4.texinfo (Bugs): Backport bug email address from head.
2889 Reported by Stepan Kasal.
2891 2005-12-04 Ilya N. Golubev <gin@mo.msk.ru> (tiny change)
2893 * input.c (match_input): Do not pass expression with side effect
2894 to `obstack_grow'. Fix <INTERNAL ERROR: Recursive push_string!>.
2897 2005-12-04 Gary V. Vaughan <gary@gnu.org> (tiny change)
2899 * doc/m4.texinfo (How to debug macros and input): s/woould/would/
2900 Reported by Damian Menscher.
2902 2005-10-19 Gary V. Vaughan <gary@gnu.org> (tiny change)
2904 * configure.ac (AC_INIT): Bump to 1.4.4a.
2906 2005-10-19 Gary V. Vaughan <gary@gnu.org> (tiny change)
2909 * configure.ac (AC_INIT): Bump to 1.4.4.
2910 * NEWS: Describe 1.4.4's changes.
2911 * INSTALL, install-sh, doc/texinfo.tex: Updated from upstream.
2913 2005-10-17 John Gatewood Ham <zappaman@buraphalinux.org> (tiny change)
2915 * src/m4.c: fix return code when non-existent files are processed
2917 2005-10-17 John Gatewood Ham <zappaman@buraphalinux.org> (tiny change)
2919 * README: update email address for bug reports.
2921 2005-10-17 Gary V. Vaughan <gary@gnu.org>
2923 * doc/m4.info: Generated files are not kept in the repository.
2925 2005-05-01 Gary V. Vaughan <gary@gnu.org>
2927 The FSF are moving offices today. Changed their contact address
2928 in all files from `59 Temple Place, Suite 330, MA 02111-1307' to
2929 `51 Franklin Street, Fifth Floor, MA 02110-1301'.
2931 Also, some of the files here were never updated from the previous
2932 '675 Mass Ave, Cambridge, MA 02139', so changed those to the
2933 '51 Franklin Street, Fifth Floor, MA 02110-1301' address too.
2935 2005-03-31 Mike Frysinger <vapier@gentoo.org>
2937 * Makefile.in (bindir, infodir): Substitute from configure rather
2939 * doc/Makefile.in (infodir): Ditto.
2940 * src/Makefile.in (bindir): Ditto.
2943 2005-03-31 Gary V. Vaughan <gary@gnu.org>
2945 Changes needed to automate the release process for 1.4.3:
2947 * Makefile.in (dist): Make .tar.bz2 tarball too.
2948 * Makefile.maint (TSDEPS_DIST): Remove m4/libtool.m4.
2949 (cvs-news): Look 1 line further down for NEWS release number.
2950 (cvs-dist): We don't use automake, so make dist is fine.
2951 Remove double . before suffixes.
2952 (cvs-release): Don't mention manual.html.
2953 (fetch): Get latest gendocs files.
2954 (web-manual): Rewritten to use gendoc for multiformat manuals.
2955 * doc/gendocs.sh: Don't save an old version in m4 CVS!
2956 * doc/m4.texinfo (Index): HFS+ (the file system on my Mac) is case
2957 preserving, but case insensitive, so generating html docs per node
2958 clashes between Index.html, the node file, and index.html, the
2959 top-level of the document tree...
2960 (Index macro): ...so renamed to this. Changed all references.
2962 2005-03-31 Gary V. Vaughan <gary@gnu.org> (tiny change)
2964 * configure.ac (AC_INIT): Bump to 1.4.3a.
2966 2005-03-31 Gary V. Vaughan <gary@gnu.org> (tiny change)
2969 * configure.in (AC_INIT): Bump to 1.4.3.
2970 * NEWS: Describe 1.4.3's changes.
2972 2005-03-31 Gary V. Vaughan <gary@gnu.org>
2974 * Makefile.maint: New file with release rules, from CVS libtool.
2975 * Makefile.in (DISTFILES): Add Makefile.maint.
2976 * INSTALL, install-sh, doc/texinfo.tex: Updated to latest
2979 2005-03-31 Eric Blake <ebb9@byu.net> (tiny change)
2981 * doc/m4.texinfo (Patsubst): Re-add trailing space required by
2982 checks/47.patsubst, with a redundant @comment to prevent emacs
2983 from removing it accidentally again.
2984 * checks/get-them: Allow for trailing spaces tucked behind
2987 2005-03-31 Eric Blake <ebb9@byu.net> (tiny change)
2989 * doc/Makefile.in (install, uninstall): Accomodate DESTDIR.
2990 * src/Makefile.in (install, uninstall): Likewise.
2992 2005-02-07 Gary V. Vaughan <gary@gnu.org>
2994 * lib/regex.c, lib/regex.h: Reverted gnulib update, which broke
2996 Reported by Eric Blake.
2998 2005-02-04 Gary V. Vaughan <gary@gnu.org>
3000 * lib/regex.c, lib/regex.h: Updated from gnulib.
3001 * src/input.c (set_word_regexp): Don't change the word_regexp
3002 unless it compiles correctly.
3004 Reported by Frank Schwidom.
3006 * Makefile.in (stamp-h): Regenerate config.h properly.
3008 2005-02-03 Gary V. Vaughan <gary@gnu.org>
3010 * configure.ac (AC_DEFINE): Fix overquoting of description
3013 * src/m4.h (__CYGWIN__, WIN32): Canonicalise Windows and Cygwin
3015 * src/freeze.c (produce_frozen_state): Use \n line-endings even
3016 on Windows, so that the frozen file reader will work.
3017 Reported by Josef T. Burger.
3019 * src/m4.c (main): Modernise the --version output.
3021 2005-02-03 Gary V. Vaughan <gary@gnu.org>
3023 Modernise the configury a little to prevent spurious errors from
3024 Autoconf-2.59's autoreconf:
3026 * config.h.in: Renamed to...
3027 * config-h.in: ...this to better support DOS 8.3 file systems.
3028 * acconfig.h: Removed.
3029 * configure.in: Renamed to...
3030 * configure.ac: ...this, and AC_DEFINE used to declare config.h
3031 entry comments. Slight reorganisation and reformatting.
3032 * aclocal.m4: Use third argument to AC_DEFINE to declare config.h
3034 (AC_INIT): Use a modern 3 argument call.
3035 * Makefile.in, checks/Makefile.in, doc/Makefile.in,
3036 examples/Makefile.in, lib/Makefile.in, src/Makefile.in:
3037 s/PRODUCT/PACKAGE/g.
3038 * Makefile.in (DISTFILES): Removed acconfig.h, configure.in,
3039 config.h.in. Added configure.ac, config-h.in.
3040 (stamp-h.in): Removed acconfig.h from dependencies.
3041 (configure): Depends on configure.ac, not configure.in.
3042 * doc/Makefile.in (stamp-vti): Ditto.
3043 * src/freeze.c (produce_frozen_state), src/m4.c (main): Adjust for
3044 difference between PRODUCT="m4" and PACKAGE="GNU M4".
3045 * configure: Regenerated.
3047 2005-02-03 Noah Misch <noah@cs.caltech.edu>
3049 * src/output.c (mkstemp): Make non-static, and build regardless of
3050 HAVE_TMPFILE; src/builtin.c also needs this replacement.
3053 2004-09-09 Vincent Lonngren <Vincent.lonngren.759@student.lu.se>
3055 * configure.in (AC_CHECK_HEADERS): Commit works best when you save
3056 changes from your editor buffer first.
3058 * configure.in (AC_CHECK_HEADERS): Add signal.h, sys/signal.h.
3059 * src/m4.c: And include them as appropriate.
3062 2004-09-09 Andreas Schwab <schwab@suse.de>
3064 Refactoring of the string read case in next_char provides about a
3065 20% speedup of M4 as typically used by autoconf:
3067 * src/input.c (next_char_1): Renamed from next_char.
3068 (next_char): New macro.
3071 2004-08-21 Gary V. Vaughan <gary@gnu.org>
3073 * configure.in (VERSION): Bump to 1.4.2a.
3075 2004-08-19 Paul Eggert <eggert@twinsun.com>
3078 * configure.in (VERSION): Bump to 1.4.2.
3079 * News: Describe 1.4.2's changes.
3081 * src/m4.c (reference_error): Preserve errno, since M4ERROR
3083 * src/builtin.c (m4_esyscmd): Clear errno before calling popen.
3084 (m4_maketemp): Clear errno before calling mkstemp.
3085 * src/path.c (path_search): Don't let "free" trash errno when
3087 * src/output.c (insert_file): Don't assume errno has a valid
3088 value simply because fread returns zero. This fixes a
3089 portability bug reported by Marion Hakanson in
3090 <http://lists.gnu.org/archive/html/bug-m4/2004-07/msg00029.html>.
3092 2004-06-09 Gary V. Vaughan <gary@gnu.org>
3094 * configure.in (VERSION): Bump to 1.4.1a.
3095 * NEWS: Place holder for next stable release.
3097 2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
3100 * configure.in (VERSION): Bump to 1.4.1.
3101 * NEWS: Describe 1.4.1's changes.
3103 * aclocal.m4 (fp_PROG_CC_STDC): Use AC_DEFUN, not define, to
3104 pacify Autoconf 2.59.
3106 * doc/m4.texinfo: Insert commas after @xref's that lack them,
3107 to pacify Texinfo 4.7.
3108 * doc/Makefile.in (info): Remove info-1, info-2, info-3.
3110 * src/m4.h, src/debug.c: Use #ifdef __STDC__, not #if __STDC__, to
3111 pacify Sun C compilers.
3113 2003-09-28 Akim Demaille <akim@epita.fr>
3115 * src/symtab.c (lookup_symbol): Fix an uninitialized-variable
3118 2003-09-03 Santiago Vila <sanvila@debian.org>
3120 * examples/stackovf.sh: Use tempfile if available.
3122 2001-04-02 Robert Bihlmeyer <robbe@orcus.priv.at>
3124 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=92629
3125 * src/output.c (m4_insert_file): Do not mix buffered and
3126 unbuffered I/O, as this breaks on the Hurd. (trivial change)
3128 2001-02-01 Santiago Vila <sanvila@debian.org>
3130 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=84451
3131 * src/m4.c (main): Fix format vulnerabilities. (trivial change)
3133 2001-02-01 Matt Kraai <kraai@debian.org>
3135 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=84416
3136 * doc/m4.texinfo (Maketemp): Change maketemp to refer to a new,
3137 empty file rather than to a nonexistent file. This closes a common
3139 * src/builtin.c (m4_maketemp): Implement the above, by using
3140 mkstemp rather than mktemp. (trivial change)
3142 2000-01-09 Akim Demaille <demaille@inf.enst.fr>
3144 * src/builtin.c (expand_ranges): Added break after trailing dash.
3145 This caused misbehaviors on some systems.
3147 Sat Nov 5 15:52:47 1994 Francois Pinard (pinard@icule)
3150 * doc/Makefile.in (realclean): Also remove stamp-vti.
3151 Reported by Eric Backus.
3153 Wed Nov 2 00:47:53 1994 Francois Pinard (pinard@icule)
3155 * src/freeze.c (produce_frozen_state): If the frozen file cannot
3156 be opened, return immediately after producing the error message.
3157 Reported by Andreas Schwab.
3159 * configure.in: Check for const only after having found possible
3160 ANSIfying compiler flags, this is of no use to check it before.
3161 Reported by Alexander Lehmann.
3163 Tue Nov 1 22:02:37 1994 Francois Pinard (pinard@icule)
3165 * src/macro.c (collect_arguments): Cast obstack arguments to
3166 (voidstar), so avoiding compiler warnings.
3167 Reported by Joseph E. Sacco.
3169 * src/freeze.c (produce_frozen_state): Cast printed lengths to
3170 (int) so they correspond to %d format items.
3171 Reported by Joseph E. Sacco.
3173 * src/m4.c (main): Cast the argument to xfree to (voidstar).
3174 * src/symtab.c (free_symbol): Idem.
3175 Reported by Karl Vogel.
3177 Mon Oct 31 02:11:19 1994 Francois Pinard (pinard@icule)
3179 * Makefile.in (DISTFILES): Distribute BACKLOG.
3181 * configure.in: Define PRODUCT and VERSION.
3182 * acconfig.h: Document PRODUCT and VERSION.
3183 * src/m4.c, src/freeze.c: Use PRODUCT and VERSION instead of the
3184 constant string m4 and variable or parameter named version.
3186 Sun Oct 30 08:13:03 1994 Francois Pinard (pinard@icule)
3188 * src/m4.h, src/debug.c: Replace all #ifdef __STDC__ by #if
3189 __STDC__. Alliant FX/2800 Concentrix 2.2 (i860-BSD4.3) compiler
3190 defines __STDC__ to 0, for indicating it is *not* ANSI!
3191 Reported by Kaveh R. Ghazi.
3193 * configure.in: Added obsolescent tests for AIX and Minix.
3195 * doc/Makefile.in (mostlyclean): Remove texclean in dependencies,
3196 which texclean does not exist anymore.
3197 Reported by Eric Backus, Jim Meyering, John David Anglin and
3200 Sat Oct 29 05:10:03 1994 Francois Pinard (pinard@icule)
3202 * aclocal.m4 (fp_C_PROTOTYPES): Force -D_HPUX_SOURCE with -Aa.
3203 Reported by John David Anglin.
3205 * src/ansi2knr.c: New version, sent by Peter Deutsch.
3206 * aclocal.m4 (fp_C_PROTOTYPES): Substitute empty or ansi2knr for
3207 ANSI2KNR, depending on the fact the compiler is ANSI or not.
3208 * src/Makefile.in: Use -Ovarargs=convert on ansi2knr calls.
3209 Remove the sed filter after ansi2knr for debug.c. Use $O instead
3210 of $U, put underline in extensions rather than in basenames. Use
3211 implicit rules, now that regularity makes this possible.
3212 Have $(OBJECTS) depend on $(ANSI2KNR), so to trigger compilation
3213 of ansi2knr whenever it is needed.
3214 * configure.in: Adjusted for correct STACKOVF substitution.
3215 * src/debug.c (trace_format): When not __STDC__, use (...) as a
3216 parameter list, so ansi2knr will convert it to (va_alist) va_dcl.
3217 Reported by David MacKenzie.
3219 * Makefile.in: Remove binprefix. Use transform_name instead.
3220 Reported by David MacKenzie.
3222 * doc/Makefile.in: Create version.texi, use it, clean it.
3223 Reported by Jim Meyering.
3225 Fri Oct 28 20:33:55 1994 Francois Pinard (pinard@icule)
3227 * Makefile.in (all, install, uninstall): Depend on Makefile.
3229 * Makefile.in: For actions invoking $(MAKE) from within compound
3230 sh statements, exit non-zero if the sub-make fails. Otherwise,
3231 the top-level make may exit successfully when it should fail.
3232 Reported by Jim Kingdon.
3234 * {,/*}Makefile.in: Use && after all cd, in case they fail.
3236 * {,*/}Makefile.in: Declare PRODUCT and VERSION macros.
3237 (dist): Use PRODUCT and VERSION instead of tricks on .fname.
3238 * configure.in: Substitute PRODUCT and VERSION.
3240 * {,*/}Makefile.in (dist): Always try a hard link before a copy.
3242 Thu Oct 27 22:32:58 1994 Francois Pinard (pinard@icule)
3244 * Makefile.in (mostlyclean-local): Do not remove *~.
3245 * */Makefile.in (mostlyclean): Idem.
3246 Reported by Robert E. Brown and Richard Stallman.
3248 Sun Oct 9 08:30:13 1994 Francois Pinard (pinard@icule)
3250 * src/m4.h: Get rid of CONFIG_BROKETS.
3252 Sun Oct 2 16:48:10 1994 Francois Pinard (pinard@icule)
3254 * configure.in: Use AC_ARG_PROGRAM.
3255 * aclocal.m4 (fp_C_PROTOTYPES): Substitute @kr@ by kr or empty.
3256 Reported by David MacKenzie.
3258 Sat Oct 1 11:22:42 1994 Francois Pinard (pinard@icule)
3260 * configure.in: Do not add -O to CFLAGS for GNU C, now that
3261 configure does it automatically.
3262 Reported by Jim Meyering.
3264 Fri Sep 23 08:16:58 1994 Francois Pinard (pinard@icule)
3266 * src/stackovf.c: Declare the handler_t typedef earlier in the
3267 code, use it for stackovf_handler.
3268 (setup_stackovf_trap): Use RETSIGTYPE instead of void while
3269 casting sigsegv_handler.
3270 Reported by Robert Bernstein.
3272 * src/m4.c (main): Initialize program_name to argv[0] without
3274 Reported by Karl Berry.
3276 Sun Sep 18 11:42:50 1994 Francois Pinard (pinard@icule)
3278 * src/Makefile.in (TAGS): Include a ../lib/TAGS reference.
3279 Reported by Karl Berry.
3281 Wed Sep 14 10:00:22 1994 Francois Pinard (pinard@icule)
3283 * lib/Makefile.in (mostlyclean): Added.
3284 (TAGS): Make in $(srcdir).
3286 * configure.in: Use `choke me' in test, like everywhere!
3288 * {doc,examples,lib,src}/Makefile.in (check): Deleted, as
3289 unreacheable and useless.
3291 * doc/Makefile.in (texclean): Deleted, merged in mostlyclean.
3293 * lib/Makefile.in (DISTFILES): Distribute TAGS.
3294 (distclean): Do not remove TAGS.
3295 (realclean): Remove it.
3296 * Makefile.in: Make TAGS in lib also, not just in src.
3297 Reported by Karl Berry.
3299 * Makefile.in (distclean, realclean): Instead of recursively
3300 calling $(MAKE) for the -local part, allow parallel execution of
3301 -recursive and -local, only delay the removal of config.status,
3302 which is repeated in both goals.
3304 Tue Sep 13 19:21:05 1994 Francois Pinard (pinard@icule)
3307 * Makefile.in: Group all *clean-recursive goals in one, using sed
3308 to remove `-recursive' while calling make recursively. Also, use
3309 a subshell for each recursive $(MAKE).
3310 Reported by Jim Meyering.
3312 * src/m4.h (memcpy): Define with bcopy for BSD systems.
3313 Reported by Kaveh R. Ghazi.
3315 * src/Makefile.in (ansi2knr): Use $(LIBS) while linking, for SunOS
3316 4.1.3 requires -ldl to link even ansik2nr, and we need a way to
3319 * configure.in: Use date instead of touch for stamp-h.
3320 * Makefile.in (stamp-h.in): Idem.
3322 * Makefile.in (distclean, realclean): Force serial execution of
3323 both goals, in case parallel makes are being used.
3324 Reported by Jim Meyering.
3326 * src/Makefile.in (DISTFILES): Distribute TAGS.
3327 (distclean): Do not remove TAGS.
3328 (realclean): Remove it.
3329 Reported by Karl Berry.
3331 Sat Sep 10 12:34:04 1994 Francois Pinard (pinard@icule)
3333 * configure.in: Use fp_ to match aclocal.m4. Revert _OS_ macros
3334 to old names, for following Autoconf.
3336 Thu Sep 8 15:07:27 1994 Francois Pinard (pinard@icule)
3338 * Makefile.in (MDEFINES): Remove INSTALL substitutions, for
3339 ./install.sh will not be correctly referred to in sub-Makefiles.
3340 Reported by John David Anglin.
3342 * doc/Makefile.in (texclean): Remove *.cps and *.fns too.
3343 Reported by Eric Backus.
3345 * Makefile.in, checks/Makefile.in, doc/Makefile.in,
3346 examples/Makefile.in, lib/Makefile.in, src/Makefile.in: Limit
3347 config.status into remaking this directory's Makefile only.
3348 * Makefile.in (stamp-h): Do not check nor touch stamp-h.
3349 * configure.in (AC_OUTPUT): Touch stamp-h if CONFIG_HEADERS.
3350 Reported by Jim Meyering.
3352 Tue Sep 6 12:07:33 1994 Francois Pinard (pinard@icule)
3354 * configure.in: Correct stack overflow detection logic, taking
3355 care of systems having only incomplete implementations (like for
3356 Pyramid 9820 OSx 5.0d).
3357 Reported by Kaveh R. Ghazi.
3359 * src/Makefile.in (TAGS): Remote -t from etags call.
3361 Fri Sep 2 10:37:10 1994 Francois Pinard (pinard@icule)
3363 * lib/Makefile.in (install): Depend on all.
3365 Wed Aug 31 11:17:21 1994 Francois Pinard (pinard@icule)
3367 * examples/Makefile.in (mostlyclean): Do not depend on texclean.
3368 Reported by Jim Meyering and John David Anglin.
3370 * Makefile.in (distclean-local): Delete config.log.
3371 Reported by Jim Meyering.
3373 Solidify frozen files with respect to -P:
3374 * src/m4.c: Have -P set prefix_all_buitins variable instead of
3375 calling a function by that name. Declare the variable.
3376 * src/m4.h: Adjust declaration for prefix_all_buitins.
3377 * src/builtin.c (builtin_init): Merge in functionality from
3378 previous prefix_all_buitins function, while making entries in the
3379 symbol table, but not modifying the builtin description itself.
3381 * src/freeze.c (reload_frozen_state): Add a useless `break;',
3382 because *many* compilers do not accept an empty `default:'.
3383 Reported by Akiko Matsushita, Eric Backus, John David Anglin,
3384 Joseph E. Sacco, Kaveh R. Ghazi, Tom McConnell and Ulrich Drepper.
3386 * configure.in: Use AC_TYPE_SIGNAL.
3387 * src/stackovf.c (setup_stackovf_trap): Use RETSIGTYPE.
3388 Reported by Robert Bernstein.
3390 * checks/Makefile.in (check): Modify PATH so check-them will find
3391 m4 in the src directory.
3392 * Makefile.in (check): Don't.
3393 Reported by Akiko Matsushita and Jim Meyering.
3395 * src/output.c (make_room_for, output_character_helper): New
3396 functions, for implementing a global MAXIMUM_TOTAL_SIZE instead of
3397 a per buffer MAXIMUM_BUFFER_SIZE.
3399 * src/output.c (output_text): New function, for optimizing the
3400 output of strings of characters. Use it.
3402 Tue Aug 30 01:44:29 1994 Francois Pinard (pinard@icule)
3404 * doc, src: New directories reorganizing the distribution.
3405 * doc/Makefile.in, src/Makefile.in, examples/Makefile.in: New
3407 * Makefile.in: Adjusted.
3408 * configure.in: Configure new Makefiles.
3410 * m4.h: Declare STRING typedef. Use it for comment and quote
3411 strings, adjusting all references. (This is the rudiments of a
3412 beginning for the eventual withdrawal of NUL terminated strings.)
3413 * output.c (shipout_text): Accept a length parameter, and use it.
3414 All callers adjusted.
3416 Mon Aug 29 12:27:19 1994 Francois Pinard (pinard@icule)
3418 * m4.h: Include <unistd.h> if it exists.
3419 * stackovf.c: Don't.
3421 Clean up for current_diversion variable:
3422 * output.c: Move current_diversion from builtin.c.
3423 * m4.h: Declare current_diversion so builtin.c can access it.
3424 * output.c (output_init, make_diversion): Initialize or update
3426 * builtin.c (builtin_init, m4_divert): Leave current_diversion
3429 Remove limit on number of diversions:
3430 * output.c: Replace ndiversion by diversions, declare it.
3431 (output_init): Allocate only diversion 0.
3432 (make_diversion): Allocate new diversions as needed.
3433 * m4.h, m4.c: Remove NDIVERSIONS and ndiversion related stuff.
3434 * m4.c: Still accept -N, but do nothing with it.
3435 Reported by David MacKenzie.
3438 * output.c (freeze_diversions): New function.
3439 * m4.h: Declare freeze_diversions.
3440 * freeze.c: Document frozen file format, revise it, call
3441 freeze_diversions to add diversions to frozen format, and code to
3442 reload them properly.
3443 * m4.c: Do not undivert automatically at end when status being
3444 frozen. Do not call builtin_init when reloading frozen state.
3446 Speed up diversion processing:
3447 * output.c: Add INITIAL_BUFFER_SIZE, MAXIMUM_BUFFER_SIZE,
3448 COPY_BUFFER_SIZE, in-memory diversion buffers, struct diversion
3449 structure and variables, cached variables out of output_diversion,
3450 reallocate_diversion_for and OUTPUT_CHARACTER.
3451 (shipout_text, make_diversion, insert_diversion): Adapted to new
3453 (insert_file): Use better buffering.
3454 Reported by David MacKenzie.
3456 Sun Aug 28 05:20:02 1994 Francois Pinard (pinard@icule)
3458 * Makefile.in, lib/Makefile.in, checks/Makefile.in: Arrange so
3459 dist works from another build directory.
3461 Sat Aug 27 14:32:45 1994 Francois Pinard (pinard@icule)
3463 * symtab.c (hack_all_symbols): Use hash_table_size instead of
3464 constant HASHMAX, for -H option to work better.
3466 * builtin.c (DECLARE): Simplify by using _ ().
3468 * freeze.c: New file.
3469 * Makefile.in: Compile it, distribute it.
3470 * m4.c: Recognize, document and process --freeze-state (-F) and
3471 --reload-state (-R) options. Pass a true flag to builtin_init
3472 only if no reloading some state.
3473 * builtin.c (define_builtin): Remove static specifier.
3474 (find_builtin_by_name): Remove static specifier.
3475 (builtin_init): Accept and obey a flag argument.
3476 * m4.h: Add declarations for freeze.c, changes for builtin.c.
3478 Wed Aug 24 16:14:19 1994 Francois Pinard (pinard@icule)
3480 * builtin.c (dumpdef_cmp): Rewrite so the cast protect the const
3483 * configure.in: Implement --with-dmalloc.
3484 * acconfig.h: Document WITH_DMALLOC.
3485 * m4.h: Add code for when WITH_DMALLOC.
3487 Mon Aug 15 12:38:05 1994 Francois Pinard (pinard@icule)
3489 * m4.c (long_options): Use "error-output", the dash was missing.
3490 Reported by Akiko Matsushita.
3492 Fri Aug 12 16:38:01 1994 Francois Pinard (pinard@icule)
3494 * m4.h: Include <sys/types.h>.
3495 * builtin.c, debug.c, m4.c, output.c, stackovf.c: Don't.
3496 * m4.h: Declare len_lquote and len_rquote as size_t, not int.
3498 * input.c: Declare len_lquote, len_rquote, len_bcomm and len_ecomm
3500 * builtin.c (dump_args): Declare len as size_t, not int.
3502 * debug.c: Prototype the forward declaration of debug_set_file.
3504 * builtin.c (m4_undivert): Replace div by file, for avoiding the
3505 shadowing of this variable.
3506 * output.c (insert_diversion): Idem.
3508 * input.c: Delete def_rquote, def_lquote, def_bcomm and def_ecomm.
3509 (input_init): Duplicate default quote and comment strings.
3510 (set_quotes): Free previous quote strings in all cases. Duplicate
3511 even default quote strings.
3512 (set_comment): Free previous comment strings in all cases.
3513 Duplicate even default comment strings.
3515 * configure.in: Updated for Autoconf 2.0.
3516 * Makefile.in (distclean-local): Also delete config.cache.
3518 * m4.c (usage): Reorganize the --help output by topic. Include a
3519 description for debugging flags.
3521 Fri Jul 29 10:15:52 1994 Francois Pinard (pinard@icule)
3523 * configure.in: If sigaction is available and SA_ONSTACK defined,
3524 use sigaction. Otherwise, if sigvec is available and SV_ONSTACK
3525 defined, use sigvec. Else don't compile stackovf.c.
3526 * stackovf.c (setup_stackovf_trap): Idem.
3527 Reported by Jim Avera, Karl Berry, Kaveh R. Ghazi, Matthias Rabe
3530 Thu Jul 21 22:43:17 1994 Francois Pinard (pinard@icule)
3532 * m4.c (usage): Replace printf par fputs.
3534 Mon Jul 18 23:48:23 1994 Francois Pinard (pinard@icule)
3538 Sun Jul 17 08:08:25 1994 Francois Pinard (pinard@icule)
3540 * configure.in: Check for sigaction and sigvec. Add a new delayed
3541 check for RLIMIT_STACK, combine in the checking for getrlimit.
3542 All those things are not universally available.
3543 * stackovf.c: Split setting up the trap handler and catching
3544 signals, for better taking care of various configure outcomes.
3545 * examples/stackovf.sh: Correct a typo.
3546 Reported by Eric Backus, Jim Avera and Jim Meyering.
3548 Sat Jul 16 20:36:19 1994 Francois Pinard (pinard@icule)
3550 * ansi2knr.c: New version sent by its author, Peter Deutsch.
3552 Fri Jul 15 14:36:21 1994 Francois Pinard (pinard@icule)
3554 * Makefile.in: Modify so parallel make will not try making
3555 lib/libm4.a twice simultaneously.
3556 Reported by Jim Meyering.
3558 Thu Jul 14 17:23:17 1994 Francois Pinard (pinard@icule)
3560 * stackovf.c (setup_stackovf_trap): Replace "Don't" by "Do not" in
3561 error message, for when no code possibility exists. Even if this
3562 line is completely #ifdef'ed out, it brings a syntax error.
3563 Reported by Andreas Schwab, Jim Meyering and Joseph E. Sacco.
3565 * Makefile.in (install): Have install depend on all too, for lib
3566 to be remade as needed.
3568 * examples/stackovf.sh: Try ksh, bsh and bash for shells
3569 providing ulimit, instead of using only ksh.
3570 Reported by Jim Avera and Joseph E. Sacco.
3572 Tue Jul 12 06:54:31 1994 Francois Pinard (pinard@icule)
3574 * Makefile.in (check): Have it depend on all instead of m4. In
3575 this way, a change in lib will be detected and processed.
3577 * builtin.c (numeric_arg): Use strtol and verify the conversion,
3578 instead of using sscanf which stops as soon as there is a
3579 non-digit in the input. Previously, incr(1xyzzy), eval(1,2xyzzy)
3580 and divert(1xyzzy) were all accepted without any warning or error
3582 * m4.h: Declare strtol as long if not including stdlib.h.
3583 * configure.in: Check for limits.h, and replace strtol if missing.
3584 * lib/Makefile.in: Substitute LIBOBJS. Distribute strtol.c.
3585 * lib/strtol.c: New file, from elsewhere.
3586 Reported by Andreas Schwab.
3588 Thu Jul 7 22:38:10 1994 Francois Pinard (pinard@icule)
3590 * macro.c (expand_macro): Cast value to (boolean) prior to
3591 assigning it to traced.
3592 Reported by Tom McConnell.
3594 * Makefile.in (m4): Always make all in lib first.
3595 Reported by Jim Meyering.
3597 Wed Jul 6 13:16:31 1994 Jim Avera (jima@netcom.com)
3599 * stackovf.c: Isolated OS-dependent sections; Improved portability,
3600 adding support for SunOS/BSD (sigvec, sigstack, and 4-parameter signal
3601 handlers), and a default error message if the fault address is not
3602 available (when neither siginfo.h nor BSD sigcontext are supported).
3603 * configure.in: Changes for stackovf.h: Check for sigcontext,
3604 sigaction, sigstack, and define rlim_t as int if necessary.
3605 * acconfig.h: Added HAVE_SIGCONTEXT and rlim_t.
3606 * examples/stackovf.sh: Run m4 -L99999999 to allow stack overflow.
3607 * ansi2knr.c: Fix for func-ptr args; convert "..." to varargs syntax.
3609 Tue Jul 5 19:13:54 1994 Francois Pinard (pinard@icule)
3611 * configure.in: Use AC_SET_MAKE.
3612 * Makefile.in: Use @SET_MAKE@.
3613 Reported by Jim Meyering.
3615 * checks/check-them: Do not trap on SIGQUIT or SIGALRM.
3616 Reported by Ian Taylor.
3618 Sat Jul 2 00:58:47 1994 Francois Pinard (pinard@icule)
3620 * configure.in: Remove dependency of USE_STACKOVF on STDC_HEADERS,
3621 because siginfo.h is unrelated to standard headers, and siginfo.h
3622 is already checked for.
3623 Reported by Joseph E. Sacco.
3625 * acconfig.h, aclocal.m4, m4.h: Replace HAVE_PROTOTYPES by
3627 * aclocal.m4, configure.in: Replace AC_HAVE_PROTOTYPES by
3630 Wed Jun 29 22:41:53 1994 Francois Pinard (pinard@icule)
3632 * builtin.c (substitute): Use \& to represent this part of the
3633 string which was matched by the whole regexp, instead of
3634 representing the whole string. Any usage of \0 issues a warning
3635 and acts like \&, it will disappear in some subsequent release.
3637 Mon Jun 27 14:24:23 1994 Francois Pinard (pinard@icule)
3639 * m4.c: Complete prototype for forwarded declaration of usage.
3641 * input.c (init_macro_token): Correct own reference in error
3642 message. Previous name get_macro_func was referred to instead.
3643 (next_char): Correct own reference in error message. Previous
3644 name advance_input was referred to instead.
3646 * m4.h: Declare eval_t and unsigned_eval_t typedefs to 32 bits.
3647 * eval.c (logical_or_term, logical_and_term, or_term, xor_term,
3648 and_term, not_term, logical_not_term, cmp_term, shift_term,
3649 add_term, mult_term, exp_term, unary_term, simple_term): Add
3650 prototype to forwarded declarations. Declare parameter v1 as
3651 eval_t * instead of int *. Same for local variable v2 in dyadic
3652 functions. Same for result in exp_term.
3653 * builtin.c (m4_eval): Declare value as eval_t instead of int.
3654 (ntoa): Declare value as eval_t instead of int. Declare uvalue as
3655 unsigned_eval_t instead of unsigned int. Change casts accordingly.
3656 (shipout_int): Cast first argument of ntoa to eval_t.
3657 Reported by Thorsten Ohl.
3659 * macro.c: Complete the prototypes of forwarded expand_macro and
3661 Reported by Thorsten Ohl.
3663 * m4.h: Define voidstar as void * or char * depending on __STDC__.
3664 The Ultrix 3.1 compiler cannot do much with void pointers.
3666 * builtin.c (dumpdef_cmp): Replace void * by voidstar.
3667 * m4.c (xfree): Replace void * by voidstar.
3668 Reported by Tom McConnell.
3670 * ansi2knr.1: New, from elsewhere.
3671 * Makefile.in (DISTFILES): Distribute ansi2knr.1
3673 * Makefile.in (stamp-h.in): Avoid running ./config.status if
3674 stamp-h does not exist yet. This avoids running it a second time
3675 just after the initial ./configure.
3676 Reported by David MacKenzie and Tom McConnell.
3678 * m4.h: Replace the enum debug_info declaration with a series of
3679 #define's. The Ultrix 3.1 compiler would otherwise need casting
3680 (int) to most references, when used in expressions.
3681 Reported by Tom McConnell.
3683 Sat Jun 25 00:10:05 1994 Francois Pinard (pinard@icule)
3685 * aclocal.m4: Replace FP_PROTOTYPES by AC_HAVE_PROTOTYPES,
3686 following an idea from Brook G. Milligan. AC_HAVE_PROTOTYPES
3687 calls the compiler. Previously, FP_PROTOTYPES was only calling
3688 the preprocessor; by not being subject to CFLAGS, this was
3689 discouraging those flags asking for ANSI compilation.
3690 * acconfig.h: Document HAVE_PROTOTYPES.
3691 * configure.in: Use AC_HAVE_PROTOTYPES instead of FP_PROTOTYPES.
3692 * m4.h: Define _() according to HAVE_PROTOTYPES, not __STDC__.
3693 Reported by Eric Backus.
3695 * configure.in: Substitute CFLAGS and LDFLAGS, taking their value
3696 from the environment. Default CFLAGS to -g if not set.
3697 * Makefile.in: Have CFLAGS and LDFLAGS substituted from configure.
3698 * lib/Makefile.in: Have CFLAGS substituted from configure.
3699 Reported by Eric Backus and Tom McConnell.
3701 * configure.in: m4_undefine changeword before using AC_ENABLE.
3703 * m4.h: Declare prototypes for error (for ANSI compilers only),
3704 prefix_all_builtins and reference_error.
3705 Reported by Tom McConnell.
3707 * input.c (set_word_regexp): Do not try to initialize the array
3708 test from a string, this does not work with non-ANSI compilers.
3709 Reported by Eric Backus.
3711 * Makefile.in (dist): Clean examples/ before saving it.
3712 (distclean-local): Also remove stamp-h.
3713 Reported by Eric Backus.
3715 * Makefile.in (_stackovf.c): Goal for compiling stacokovf.c with
3717 Reported by Tom McConnell.
3719 * checks/Makefile.in (clean): Depends on mostlyclean.
3720 (mostlyclean): New goal.
3722 Fri Jun 24 23:30:31 1994 Francois Pinard (pinard@icule)
3724 * Makefile.in (DISTFILES): Distribute install.sh.
3725 * install.sh: New file, copied from elsewhere.
3726 Reported by Assar Westerlund and Kaveh R. Ghazi.
3728 Thu Jun 23 00:00:30 1994 Francois Pinard (pinard@icule)
3730 * configure.in: Define ENABLE_CHANGEWORD if --enable-changeword.
3731 * acconfig.h: Explain ENABLE_CHANGEWORD.
3733 [These modifs all depend upon ENABLE_CHANGEWORD and are adapted
3734 from code provided by Pete Chown]
3735 * m4.h: Add original_text field to u_t variant of union u.
3736 Declare TOKEN_DATA_FUNC macro.
3737 * builtin.c: Declare changeword.
3738 (m4_changeword): New function.
3739 * input.c: Include "regex.h", define variables with word regexps.
3740 (input_init): Initialize the word regexp.
3741 (set_word_regexp): New.
3742 (next_token): Declare local variables, use the previous code if
3743 default_word_regexp is true. Else, match using a new code. Save
3745 * macro.c (expand_token): Ship out original text if not a macro
3747 Reported by Krste Asanovic and Pete Chown.
3749 [These modifs all depend upon ENABLE_CHANGEWORD]
3750 * m4.h: Declare external user_word_regexp.
3751 * m4.c: Declare user_word_regexp, and initialize it from
3752 --word-regexp or -W, or NULL if not specified.
3753 * input.c: Use user_word_regexp if specified, instead of
3754 DEFAULT_WORD_REGEXP.
3756 * Makefile.in (m4): Revert Jan 3 1994 change. I'm unable to
3759 * Makefile.in, lib/Makefile.in: Limit suffixes to .c and .o.
3760 * checks/Makefile.in: Empty the suffix list.
3761 Reported by Geoff Russell, Joel Sherrill and Roland McGrath.
3763 * m4.c: Declare nesting_limit and initialize it to 250.
3764 Implement -LNUMBER or --nesting-limit=NUMBER to change its
3766 * m4.h: Declare nesting_limit as external.
3767 * macro.c (expand_macro): Stop execution whenever nesting limit
3769 Reported by Bengt Mertensson.
3771 * eval.c (evaluate): Diagnose excess characters in eval input.
3772 Things like `eval(08)' used to return 0 with no diagnostic.
3774 * m4.h: Capitalize first letter of all macro arguments in
3777 * m4.c: Declare warning_status, initialize it to 0. Add new
3778 option -E, or --fatal-warnings, which sets warning_status to
3779 EXIT_FAILURE instead.
3780 * m4.h: Declare external warning_status. Define EXIT_SUCCESS and
3781 EXIT_FAILURE if not otherwise done by header files.
3782 * m4.c: Delete declarations for EXIT_SUCCESS and EXIT_FAILURE.
3783 * m4.c, input.c, output.c, symtab.c, builtin.c, macro.c, debug.c,
3784 eval.c: Replace 0 by warning_status and 1 by EXIT_FAILURE in first
3785 argument of all M4ERROR calls.
3786 Reported by Noah Friedman.
3788 * examples/incl-test.m4: Renamed from incl_test.m4.
3789 * examples/include.m4: Include incl-test.m4 instead of
3791 * examples/multiquotes.m4: Renamed from multi-quotes.m.
3793 Wed Jun 22 21:58:54 1994 Francois Pinard (pinard@icule)
3795 * configure.in: Avoid USE_STACKOVF if <siginfo.h> not found. Note
3796 that Jim developped stackovf.c on a 486 running SVR4.0 (ESIX), and
3797 also tested it on a Sun Sparc workstation running SunOS 4.x.
3799 * format.c (format): When not HAVE_EFGCVT, m4 was failing the
3800 49.format check, abusing a `union values' argument with sprintf
3801 without selecting the proper field. Now, save the formatting type
3802 first, delaying the fetch of the corresponding argument.
3803 Reported by Joseph E. Sacco and Tom Quinn.
3805 * format.c (format): Remove const from char *fmt declaration when
3806 not HAVE_EFGCVT, because a NUL may be forced into it.
3808 * m4.h: Declare atof() when not STDC_HEADERS.
3809 Reported by Joseph E. Sacco.
3811 * Regenerate configure using Autoconf 1.11, this corrects a
3812 problem about an incorrect cpp seting on NeXT 3.1.
3813 Reported by Alexander Lehmann.
3815 Sun Jun 5 16:25:19 1994 Francois Pinard (pinard@icule)
3817 * m4.h (_): Change argument from `x' to `Args'.
3819 Wed May 4 23:59:39 1994 Francois Pinard (pinard@icule)
3821 * Makefile.in: Remove all occurrences of $(MFLAGS), which were
3822 bringing more evil than good on a few systems.
3823 Reported by Greg A. Woods.
3825 Fri Apr 22 15:59:35 1994 Francois Pinard (pinard@icule)
3827 * m4.h: Rename Args() to _().
3828 * m4.h: Remove extern specifier from all function declarations.
3830 Fri Apr 22 15:51:21 1994 Jim Avera (jima@netcom.com)
3832 * stackovf.c: New file implementing stack-overflow detection.
3833 * configure.in: Check for getrlimit, sigaction. If all of
3834 standard headers, getrlimit and sigaction, define USE_STACKOVF and
3835 substitute ${U}stackovf.o for STACKOVF.
3836 * acconfig.h: Declare USE_STACKOVF.
3837 * Makefile.in: Distribute stackovf.c, link with $(STACKOVF).
3838 * m4.h: Declare setup_stackovf_trap().
3839 * m4.c: Call setup_stackovf_trap().
3840 * tests/stackovf_test.sh: New file.
3842 Wed Apr 13 14:10:30 1994 Francois Pinard (pinard@icule)
3844 * checks/Makefile.in: Rename .all-stamp to stamp-checks.
3846 * Makefile.in (Makefile, etc.): Adapt for Autoconf 1.8.
3848 Sun Jan 30 14:24:19 1994 (pinard at icule)
3850 * m4.h: Remove definition of volatile, not used anymore.
3851 Reported by Jim Meyering and Joseph E. Sacco.
3853 * m4.h: Consistently use `do { ... } while (0)' in macros, instead
3854 of `if ... else /* nothing */' for if macros.
3855 Reported by Jim Meyering.
3857 * builtin.c (m4_regexp): Reorganize the code for avoiding a
3858 warning from gcc about `repl' possibly used before defined.
3859 Reported by Jim Meyering.
3861 * m4.h: Avoid a pre-ANSI <memory.h> together with <string.h>.
3862 Reported by Jim Meyering.
3864 Tue Jan 25 18:39:37 1994 Francois Pinard (pinard at icule)
3866 * m4.h: Move the conditional definition of volatile after the
3867 inclusion of system files, because they may define it first.
3869 Tue Jan 4 19:46:50 1994 Francois Pinard (pinard@icule)
3871 * checks/Makefile.in (CHECKS): Add a useless `*' before `[', to
3872 get around a problem with Alpha make seeing a syntax error, there.
3873 Reported by Vern Paxson.
3875 Mon Jan 3 00:21:45 1994 Francois Pinard (pinard@icule)
3877 * Makefile.in: Do not define LDFLAGS, use CFLAGS on link calls.
3878 Reported by Richard Stallman.
3880 Sat Dec 25 08:06:05 1993 Francois Pinard (pinard@icule)
3882 * configure.in: Correct test for strerror, AC_FUNC_CHECK was used
3883 instead of AC_HAVE_FUNCS.
3884 Reported by Noah Friedman.
3886 Wed Dec 1 09:37:53 1993 Francois Pinard (pinard@icule)
3888 * m4.c: Initialize show_help and show_version to zero.
3890 * m4.c: Ensure EXIT_SUCCESS and EXIT_FAILURE are defined.
3891 Use them in exit() and usage() calls.
3893 Sat Nov 27 10:43:24 1993 Francois Pinard (pinard@icule)
3895 * m4.h: Delete extern sys_nerr, sys_errlist declarations, and
3896 syserr() macro. Delete errref, add reference_error and M4ERROR.
3897 * m4.c: Replace errref, which was returning an input reference
3898 string, with reference_error, which prints it on standard error.
3899 * builtin.c, output.c: Use errno as second parameter to error,
3900 instead of using syserr() with %s.
3901 * *.c: Use M4ERROR instead of error: no more errref() with %s.
3902 Doing so, the program name appears after the input reference
3903 instead of before, which eases M-x next-error processing.
3905 Wed Nov 24 22:16:15 1993 Francois Pinard (pinard@icule)
3907 * checks/get-them: Escape braces with backslashes in patterns,
3908 because HPUX-9.01 awk needs this.
3909 Reported by Jim Meyering.
3911 Mon Nov 22 10:55:52 1993 Francois Pinard (pinard@icule)
3913 * builtin.c: Declare "FILE *popen ();".
3915 * m4.h: Remove MESSAGE{,1,2}, WARNING1, FATAL{,1}, INTERNAL_ERROR
3916 macros, replace error_message_prefix() declaration by errref()'s.
3917 Declare xrealloc, for use in errref().
3918 * m4.c: Delete error_message_prefix() function, add errref().
3919 * *.c: Use error() systematically in place of all error macros,
3920 now that error() flushes stdout first. Make needed adjustments.
3922 * m4.h: Remove const in sys_errlist[] declaration, it creates
3923 conflicts on SGI and Alpha.
3924 Reported by Kaveh R. Ghazi.
3926 Sat Nov 20 08:26:15 1993 Francois Pinard (pinard@icule)
3928 * m4.c: Include <getopt.h> instead of "getopt.h".
3930 * configure.in: Output to config.h. Use HAVE_FUNCS preferably.
3931 * acconfig.h: New, for documenting HAVE_EFGCVT.
3932 * Makefile.in: Distribute acconfig.h, .stamp-h.in and config.h.in,
3933 use them wherever appropriate. Also use -I. for compilations.
3934 * lib/Makefile.in: Use -I.. for compilations.
3935 * *.c: Include <config.h> or "config.h".
3937 * m4.h: Test for HAVE_MEMORY_H instead of NEED_MEMORY_H.
3938 * configure.in: Use AC_HAVE_HEADERS(memory.h), delete AC_MEMORY_H.
3940 Wed Nov 17 09:34:55 1993 Francois Pinard (pinard@icule)
3942 * builtin.c (m4_eval): Cast strlen to (int) before comparing.
3944 * input.c (input_init): Initialize quote and comment strings
3945 explicitely instead of calling set_quotes and set_comment: by
3946 doing so, we ensure we do not free uninitialized variables.
3948 * checks/check-them: Reverse arguments to both diff, so the
3949 expected is on the left and the obtained on the right.
3951 * m4.h: Add MESSAGE{,1,2}, WARNING1, FATAL{,1} and INTERNAL_ERROR
3952 macros. Delete declarations for m4error, warning, fatal and
3953 internal_error, add declaration for error_message_prefix.
3954 * m4.c: Delete m4error, warning, fatal and internal_error
3955 routines, add error_message_prefix routine.
3956 * *.c: Replace m4error routine calls with MESSAGE* macro calls,
3957 warning with WARNING*, fatal with FATAL* and internal_error with
3959 * Makefile.in (_m4.c): Do not adjust ansi2knr output for va_alist,
3960 this is not needed anymore.
3962 * m4.h: Declare extern FILE *debug. Add DEBUG_PRINT{1,3} and
3963 DEBUG_MESSAGE{,1,2} macros. Delete declarations for debug_print
3964 and debug_message, add declaration for debug_message_prefix.
3965 * debug.c: Remove static specifier for FILE *debug declaration.
3966 Delete debug_print and debug_message routines, add
3967 debug_message_prefix routine.
3968 * builtin.c, debug.c: Replace debug_print routine calls with
3969 DEBUG_PRINT* macro calls.
3970 * input.c, path.c: Replace debug_message routine calls with
3971 DEBUG_MESSAGE* macro calls.
3973 * m4.h: Remove inclusion of <varargs.h>.
3974 * debug.c: Include <stdarg.h> or <varargs.h>.
3975 (trace_format): Use stdarg instead of varargs if __STDC__.
3977 * configure.in: Remove checks for vfprintf and _doprnt. These
3978 implementations use varargs tricks which are not portable enough.
3979 * lib/vfprintf.c: Deleted.
3980 * lib/_doprnt.c: Deleted.
3981 * lib/Makefile.in: Adjusted accordingly. Remove LIBOBJS.
3982 Reported by Joel Sherrill.
3984 * path.c (add_include_directory): Use xstrdup.
3986 * builtin.c (find_builtin_by_name): Declare static.
3988 * *.[ch]: Add const to a few "char *" declarations.
3990 * configure.in: Remove commented tests for fileno() and fstat().
3991 * debug.c: Remove comments about HAVE_FILENO and HAVE_FSTAT.
3993 * debug.c (debug_flush_files): New.
3994 * m4.h: Declares it.
3995 * builtin.c (m4_syscmd, m4_esyscmd): Use it.
3996 Reported by Nicolas Pioch.
3998 Fri Nov 12 10:02:26 1993 Francois Pinard (pinard@icule)
4000 * Makefile.in (m4.dvi): Use m4.texinfo instead of m4.texi.
4001 Reported by Joel Sherrill.
4003 * builtin.c (prefix_all_builtins): Instead of the table size, use
4004 the null entry at end for stopping the loop. It was overwritten.
4005 Reported by Andreas Schwab and Jim Meyering.
4007 * builtin.c (prefix_all_builtins): Cast xmalloc to (char *).
4008 Reported by Kaveh R. Ghazi.
4010 * macro.c (call_macro): Add * in (*SYMBOL_FUNC (sym)) (...).
4011 Reported by Karl Vogel.
4013 Tue Nov 9 09:31:47 1993 Francois Pinard (pinard@icule)
4015 * m4.h: Do not define volatile if already defined.
4016 Reported by Rene' Seindal.
4018 * lib/Makefile.in: Add a forgotten ALLOCA=@ALLOCA@. Grrr!
4020 Reported by Bernhard Daeubler, Eric Backus, Hal Peterson, Hoang
4021 Uong, Ian Taylor, Kaveh R. Ghazi, Tom McConnell and Walter Wong.
4023 Mon Nov 8 21:11:44 1993 Francois Pinard (pinard@icule)
4025 * m4.h: Define strchr and strrchr in terms of index and rindex,
4026 instead of the other way around.
4027 * builtin.c, m4.c, path.c: Use strchr instead of index.
4029 * input.c (next_char): Remove a "break;" after a "return ...;".
4030 Reported by Tom McConnell.
4032 Mon Nov 8 12:45:34 1993 Francois Pinard (pinard@icule)
4036 * configure.in: Do not copy check files in the build hierarchy.
4037 * checks/check-them: Identify the m4 version being checked. For
4038 finding m4, look in $PATH instead of in the parent directory.
4039 * Makefile.in (check): Prepend `pwd` to $PATH before checking.
4040 * checks/Makefile.in (.all-stamp): Always create check files in
4041 the source hierarchy, not anymore in the build hierarchy.
4042 (check): cd to the source hierarchy before performing checks.
4043 Do not copy nor clean COPYING anymore, take it from `..'.
4044 Reported by Tom McConnell.
4046 * Makefile.in (Makefile): Use $(SHELL).
4047 (config.status): Use $(SHELL). Use "config.status --recheck"
4048 instead of "configure --no-create", which is obsolete.
4049 Reported by Tom McConnell.
4051 Fri Nov 5 09:49:30 1993 Francois Pinard (pinard@compy.IRO.UMontreal.CA)
4053 * m4.c (usage): Use "%s" instead of "m4" in format string.
4054 Reported by Jim Meyering.
4056 * Makefile.in: Distribute mkinstalldirs.
4057 Reported by Pierre Gaumond.
4058 Reported by Jim Meyering.
4059 Reported by Tom McConnell.
4060 Reported by Andreas Gustafsson.
4062 * checks/check-them: Renamed from checks/check_them.
4063 * checks/get-them: Renamed from checks/get_them.
4064 * checks/.all-stamp: Renamed from checks/.all_stamp.
4065 * checks/Makefile.in: Changed accordingly.
4066 Reported by Jim Meyering.
4068 Thu Nov 4 13:50:52 1993 Francois Pinard (pinard@lagrande.IRO.UMontreal.CA)
4070 * lib/Makefile.in (dist): Correct permissions on files.
4072 * output.c: Declare tmpfile, some systems don't.
4074 Wed Nov 3 09:09:16 1993 Francois Pinard (pinard@icule)
4076 * checks/Makefile.in (dist): Correct permissions on files.
4078 * Makefile.in (dist): Ensure recursive linking for subdirectory
4079 `examples', also set read/write permissions on all its files.
4081 * mkinstalldirs: New, from elsewhere.
4082 * Makefile.in: Use it.
4084 * debug.c: Synchronize debug messages and regular output when
4085 the debug file and stdout are redirected to the same file.
4086 * configure.in: Add (commented) checks for fileno and fstat.
4087 Reported by Jim Avera.
4089 * builtin.c (m4_ifelse): Diagnose excess arguments if 5, 8, 11,
4090 etc., arguments, then ignore the superfluous one. m4 used to
4091 diagnose missing arguments and return the empty string.
4092 Reported by Nick S. Kanakakorn.
4094 Tue Nov 2 00:55:41 1993 Francois Pinard (pinard@icule)
4096 * m4.c (main): At end of all input, ensure all undiverted text
4097 goes to the main output stream.
4098 Reported by Andreas Gustafsson.
4100 * m4.c (main): exit (0), instead of return 0.
4102 * m4.c: Implement -P and --prefix-builtins.
4103 * builtin.c: Delete const specifier on builtin_tab.
4104 (prefix_all_builtins): New.
4105 Reported by Noah Friedman.
4106 Reported by Scott Bartram.
4108 * c-boxes.el: New, from elsewhere.
4109 * Makefile.in: Distribute it.
4111 * m4.h: Do not define bcopy if <string.h> defines it.
4112 Reported by Stephen Perkins.
4114 * builtin.c (define_macro): Allow a missing second argument, in
4115 which case it is implied empty. Affects define and pushdef.
4116 Reported by Eric Allman.
4118 Mon Nov 1 07:45:24 1993 Francois Pinard (pinard@icule)
4120 * m4.h: Add blind_if_no_args in struct builtin, blind_no_args in
4121 struct symbol adn SYMBOL_BLIND_NO_ARGS macro.
4122 * builtin.c: Initialize all the blindness fields in builtin_tab.
4123 (define_builtin): Copy the blindness of a builtin into its symbol.
4124 * macro.c (expand_token): Avoid processing a blind builtin if the
4125 next character is not an opening parenthesis.
4126 Reported by David MacKenzie.
4127 Reported by Noah Friedman.
4129 * configure.in: Ensure an exit status of 0 on completion.
4130 Reported by Vivek P. Singhal.
4132 * eval.c (eval_lex): Admit both lower and upper case letters for
4133 bases greater than 10. Only lower case letters were accepted.
4135 * eval.c (eval_lex): Recognize 0bDIGITS and 0rRADIX:DIGITS syntax.
4136 Reported by Krste Asanovic.
4138 * eval.c: Rename NOT to LNOT. Add XOR, NOT, LSHIFT and RSHIFT.
4139 * eval.c (logical_not_term): New name for not_term.
4140 * eval.c (xor_term): New, between or_term and and_term.
4141 * eval.c (not_term): New, between and_term and logical_not_term.
4142 * eval.c (shift_term): New, between cmp_term and add_term.
4143 Reported by Krste Asanovic: ~, ^, <<, >>.
4144 Reported by Ben A. Mesander: ** vs ^.
4146 * m4.c: Delete xmalloc.c, xrealloc.c, xstrdup.c.
4147 * m4.h: Delete xrealloc.c.
4148 * lib/xmalloc.c: New, from elsewhere.
4149 * lib/xstrdup.c: New, from elsewhere.
4150 * lib/Makefile.in: Distribute and compile them.
4152 * m4.c: Change progname to program_name.
4153 * builtin.c, eval.c, m4.c, m4.h: Rename error to m4error.
4154 * lib/error.c: New, from elsewhere.
4155 * lib/Makefile.in: Distribute and compile error.c.
4156 * configure.in: Check AC_VPRINTF and for strerror.
4157 * m4.c: Delete cmd_error. Use error instead.
4158 * m4.c: Change label capitalisation to "ERROR", "Warning", etc.
4160 * m4.h: Delete #define const, let Autoconf takes care of this.
4162 * m4.c: Remove all code conditionalized by IMPLEMENT_M4OPTS.
4163 Merge parse_args into main. Declare argv to be `char *const *',
4164 then remove superfluous casts.
4166 * m4.c: Rename --no-gnu-extensions to --traditional.
4167 Reported by Ben A. Mesander.
4169 * m4.c (usage): Add a status parameter. Supply one in various
4170 calls. Add --help processing. Remove -V for --version.
4172 * lib/Makefile.in: Put $(CFLAGS) last in .c.o rule.
4174 * lib/Makefile.in: Have an AR=ar declaration.
4175 Reported by Eric Backus.
4176 Reported by Bjorn R. Bjornsson.
4177 Reported by Tom Tromey.
4178 Reported by Kristine Lund.
4179 Reported by Marion Hakanson.
4181 Sat Oct 30 12:51:47 1993 Francois Pinard (pinard@icule)
4183 * Makefile.in (m4.info): Use -I$(srcdir) on $(MAKEINFO).
4184 Reported by Noah Friedman.
4186 Mon Oct 25 14:58:48 1993 Francois Pinard (pinard@icule)
4188 * Makefile.in: Remove MDEFINES and cleanup.
4190 Wed Jun 9 14:59:46 1993 Francois Pinard (pinard@icule)
4192 * Makefile.in (dist): Replace "echo `pwd`" by a mere "pwd".
4195 Sat Feb 6 14:59:22 1993 Francois Pinard (pinard@icule)
4197 * Makefile.in, lib/Makefile.in, check/Makefile.in: In dist goals,
4198 ensure 777 mode for directories, so older tar's will restore file
4201 Sun Jan 17 15:38:05 1993 Francois Pinard (pinard@icule)
4203 * Makefile.in, lib/Makefile.in: Put $(CFLAGS) after $(CPPFLAGS),
4204 so the installer can override automatically configured choices.
4205 Reported by Karl Berry.
4207 Fri Jan 15 16:07:00 1993 Francois Pinard (pinard@icule)
4209 * lib/vfprintf.c: Stolen from Oleo distribution and adapted. The
4210 previous version was not working properly on m68k-hp-bsd4.3.
4211 Reported by Roland McGrath.
4213 * lib/_doprnt.c: Stolen from Oleo distribution.
4214 * configure.in: Check for _doprnt.c if vfprintf.c selected.
4215 * lib/Makefile.in: Distribute _doprnt.c.
4216 Do not distribute regex.[ch].old anymore.
4218 Fri Jan 1 19:42:23 1993 Francois Pinard (pinard at icule)
4220 * Makefile.in, lib/Makefile.in: Reinstate $(CPPFLAGS), use it.
4221 Richard wants it there.
4223 Sun Dec 27 07:01:54 1992 Francois Pinard (pinard at icule)
4225 * Makefile.in: Add DEFS to MDEFINES.
4226 * lib/Makefile.in (.c.o): Remove $(CPPFLAGS).
4227 (libm4.a): Remove the library before creating it.
4228 (distclean): Remove tags and TAGS too.
4230 Wed Dec 23 12:46:55 1992 Francois Pinard (pinard at icule)
4232 * Makefile.in (dvi, m4.dvi): New goals.
4234 * builtin.c, eval.c, format.c, input.c, m4.[ch], m4.texinfo,
4235 macro.c, output.c, path.c, symtab.c: Change Copyright from
4236 1989-1992 to the explicit enumeration 1989, 1990, 1991, 1992.
4238 * examples/divert.m4: Deleted, this bug has been corrected.
4240 * Makefile.in (texclean, mostlyclean): New goals.
4242 * Makefile.in (clean): Remove clutter from ansi2knr.
4243 Reported by Pierre Gaumond.
4244 Reported by Greg A. Woods.
4246 Sun Dec 20 10:40:20 1992 Francois Pinard (pinard at icule)
4248 * Makefile.in: Remove $(CPPFLAGS) from the .c.o rule. The user
4249 might well use CFLAGS is s/he needs it.
4251 * Makefile.in: Allow installation of info files from a separate
4253 Reported by Jason Merrill.
4254 Reported by David MacKenzie.
4255 Reported by Skip Montanaro.
4256 Reported by Erez Zadok.
4257 Reported by Assar Westerlund.
4259 Sat Dec 19 08:21:34 1992 Francois Pinard (pinard at icule)
4262 This is still a beta release for the future GNU m4 version 1.1.
4264 * lib/alloca.c: New, from elsewhere.
4265 * lib/Makefile.in: Distribute it. Define and use $(ALLOCA).
4267 * m4.h: Do not define index/rindex if already defined. If
4268 FALSE/TRUE are already defined, do not redefine them, but merely
4269 define boolean typedef to int.
4271 * Makefile.in: Use $(DEFS) while compiling ansi2knr.
4272 * ansi2knr.c: Rewrite #ifdef HAVE_STRING_H || STDC_HEADERS,
4273 because some C compilers do not like connectives with #ifdef.
4274 * m4.h: Define `volatile' only if __GNUC__, instead of once for
4275 __GNUC__ and once for __STDC__.
4276 * lib/regex.h: Leave const alone, AC_CONST will take care of it.
4278 * checks/Makefile.in: Use .all_stamp instead of $(CHECKS) for
4279 Makefile dependencies. Without it, make keeps destroying and
4280 remaking $(CHECKS) in a loop (why?). Distribute .all_stamp.
4282 * m4.h, m4.c, builtin.c, output.c: Change all divertion/DIVERTION
4283 to diversion/DIVERSION, this was a spelling error.
4285 * m4.c: Declare version[], remove #include "version.h".
4286 * version.h: Deleted.
4287 * Makefile.in: Remove references to version.h.
4289 * output.c (shipout_text): Centralize all `#line NUM ["FILE"]'
4290 production, by using a simpler and more robust algorithm. This
4291 solves the problem of synclines sometimes written in the middle of
4292 an output line. Delete sync_line() and output_lines variable.
4293 * m4.h: Remove sync_line prototype and output_lines declaration.
4294 * input.c (next_char), output.c (shipout_text): Remove references
4296 * input.c (push_file, pop_file): Merely put the value -1 in
4297 output_current_line instead of calling sync_line, for delaying a
4298 single `#line NUM FILE' before next output line. Do not test
4299 for sync_output, because this is unnecessary clutter.
4300 * output.c (make_divertion, insert_divertion): Idem.
4301 * input.c: Rename must_advance_line to start_of_input_line, for
4304 * debug.c (trace_header): Select a new debug line format, which
4305 better complies with GNU standards for formatting error messages.
4306 With option `-dfl', M-x next-error might be used on the output.
4307 * m4.c (vmesg): Adjust format of error output to GNU standards.
4308 * m4.texinfo: Adjust examples for `make check' to work.
4310 * m4.h, builtin.c, debug.c, input.c, macro.c, path.c: Use upper
4311 case for enum debug_info constants, which were all lower case.
4313 * builtin.c (m4_regexp, m4_patsubst): Use re_search instead of
4315 * lib/regex.[ch]: Use new version from textutils 1.3.6, with some
4316 collected patches. I tried a few times using newer regex.[ch], it
4317 mysteriously stopped aborting with this one. Insecure feeling...
4318 * lib/Makefile.in: Distribute regex.[ch].old, just in case!
4320 Fri Dec 18 11:08:03 1992 Francois Pinard (pinard at icule)
4322 * m4.c: Change `--no-warnings' to `--silent'.
4323 Reported by David MacKenzie.
4325 * m4.c: Put all M4OPTS code upon IMPLEMENT_M4OPTS control, and
4326 leave it off for now. See comment in m4.c for justification.
4327 Reported by David MacKenzie.
4329 * configure.in: Replace AC_USG by AC_HAVE_HEADERS(string.h).
4330 * m4.h, ansi2knr.c, lib/regex.h: Replace USG by HAVE_STRING_H.
4332 * Makefile.in: Add a new `info' goal. Use macro MAKEINFO.
4334 * Makefile.in: Ensure recursive cleaning is done before local
4335 cleaning for all clean goals.
4337 * builtin.c (ntoa): Ensure the value is always interpreted as a
4338 signed quantity, whatever the radix is.
4340 Wed Nov 18 07:57:19 1992 Jim Meyering (meyering@idefix)
4342 * builtin.c, format.c, input.c: Split long lines.
4343 * m4.c: Use typedef macro_definition instead of struct
4345 * symtab.c: Use typedef symbol instead of struct symbol.
4347 Tue Nov 17 01:58:40 1992 Francois Pinard (pinard at icule)
4349 * *.[ch]: Remove all trailing whitespace, in code and comments.
4351 * configure.in: Find some awk.
4352 * Makefile.in: Add $(AWK) to MDEFINES.
4353 * checks/Makefile.in: Transmit $(AWK) to get_them.
4354 * checks/get_them: Use $AWK instead of gawk. Add a close in the
4355 awk script when switching files, because without this, mawk runs
4356 out of file descriptors.
4358 Mon Nov 16 20:42:56 1992 Francois Pinard (pinard at icule)
4360 * Makefile.in (realclean): Delete m4.info*.
4361 Reported by Jim Meyering.
4363 * Makefile.in: Adjust and link with checks/Makefile.
4364 * checks/Makefile.in: New.
4365 * configure.in: Output checks/Makefile.
4367 * checks/get_them: Have the dnl header of each test more
4368 recognizable by next-error, also use a better message.
4370 Mon Nov 16 07:48:52 1992 Jim Meyering (meyering@idefix)
4372 * m4.h [__GNUC__]: Use __volatile__ instead of `volatile.'
4373 And use that only if __GNUC__ since we're using it's GCC-specific
4374 semantics that tell the compiler the associated function doesn't
4377 * builtin.c (substitute): Don't use character as an array index.
4378 (dumpdef_cmp): Make formal arguments `const void *' to avoid
4379 warnings with gcc -W -Wall on systems with qsort prototype.
4380 (m4_errprint): Cast obstack_finish to `char *' to avoid warnings
4383 * eval.c (most functions): Add parentheses to assignments used
4384 as truth values go avoid warnings from gcc -Wall.
4386 * input.c, m4.c, output.c, path.c, symtab.c: Declare static
4387 any functions that don't need external scope.
4389 * builtin.c, debug.c, format.c, m4.c, m4.h, macro.c, symtab.c
4390 (many functions and arrays): Declare `const'.
4392 Sun Nov 15 09:42:09 1992 Francois Pinard (pinard at icule)
4394 * *.[ch]: Rename nil to NULL, using the declaration from <stdio.h>,
4395 removing the declaration from m4.h. Also rename false to FALSE
4398 * lib/Makefile.in (Makefile): New goal.
4400 * Makefile.in, lib/Makefile.in: Add a .c.o rule, so CFLAGS is not
4401 so heavily loaded. It gets more easily overridable, calling make.
4402 Reported by Jim Meyering.
4404 * Makefile.in (dist): Get .fname from the current directory name,
4405 instead of from version.h. I need updating many files manually,
4406 when the version changes, version.h is just one of them.
4408 Sat Nov 14 11:01:20 1992 Francois Pinard (pinard at icule)
4410 * m4.h: Remove the tag `boolean' on the enum introducing typedef
4411 `boolean'. This tag conflicts with <sys/types.h> on SVR4.
4412 Reported by Tom McConnell.
4414 Fri Nov 13 00:12:50 1992 Francois Pinard (pinard at icule)
4416 * m4.texinfo: Correct the examples for 33.divert, 38.divnum,
4417 39.cleardiv, which were describing missing or spurious newlines.
4418 Modify examples 52.eval, 53.esyscmd and 54.sysval so the results
4419 do not depend on machine word size, `/bin/false' implementation,
4420 or `wc' output format. `make check' is more dependable, now.
4422 * checks/check_them: Summarize the failed tests by listing their
4423 name, at end. If none, issue `All checks successful'. Output
4424 `Checking' instead of `Input file:'.
4426 * checks/get_them, checks/check_them: Reindented.
4428 * Makefile.in (dist): chmod a+r before making the tar file.
4430 Thu Nov 12 14:42:57 1992 Francois Pinard (pinard at icule)
4432 * builtin.c (m4_dnl): Diagnose any parameter to `dnl'.
4434 * input.c (next_token): Reinitialize token_buttom just after using
4435 it as a watermark with obstack_free. Or else, a future token, big
4436 enough for triggering reallocation of the obstack chunk, could
4437 void the initialized value of token_buttom, later causing panic in
4438 obstack_free. Rename token_buttom to token_bottom everywhere.
4440 * m4.h: Before declaring errno, first include <errno.h> and
4441 ensure that it does not define errno.
4442 Reported by Richard Stallman.
4444 Wed Nov 11 17:40:35 1992 Francois Pinard (pinard at icule)
4446 * builtin.c: Define and use DECLARE macro for builtins.
4448 * builtin.c (m4_ifelse): Avoid any diagnostic when exactly one
4449 argument, this is a common idiom for introducing long comments.
4451 * builtin.c (m4_ifelse): If 3n + 2 arguments, diagnose missing
4452 arguments. The last argument was silently ignored.
4454 * m4.c (cmd_error): Add a missing semicolon before va_end().
4456 Tue Nov 10 08:57:05 1992 Francois Pinard (pinard at icule)
4458 * Makefile.in: Now handle protoized sources. Define and use U.
4459 Compile and use ansi2knr with old compilers. Update DISTFILES.
4460 Add `aclocal.m4' to `configure' dependencies.
4461 * ansi2knr.c: New, from Ghostscript distribution.
4462 * configure.in: Define U through FP_PROTOTYPES for old compilers.
4463 Add AC_ISC_POSIX, AC_CONST, AC_SIZE_T.
4464 * aclocal.m4: New, provide FP_PROTOTYPES.
4465 * m4.h: Conditionnaly protoized through Args, save for varags.
4466 * builtin.c: Protoized. Then:
4467 Include <sys/types.h> if size_t is not defined, before "regex.h".
4468 (m4_ifelse): Fetch built-in name properly for diagnostic.
4469 (m4_dumpdef): Remove wrong (char *) cast calling dump_symbol.
4470 (m4_regexp): Add const to `msg' declaration.
4471 (m4_patsubst): Add const to `msg' declaration.
4472 * debug.c: Protoized, save for varargs.
4473 * eval.c: Protoized.
4474 * format.c: Protoized.
4475 * input.c: Protoized.
4476 * m4.c: Protoized, save for varargs. Then:
4477 (xfree): Accept void * instead of char *.
4478 (xmalloc): Return void * instead of char *.
4479 (xrealloc): Accept and return void * instead of char *.
4480 * macro.c: Protoized.
4481 * output.c: Protoized.
4482 * path.c: Protoized. Then cast some (char *) over xmalloc's.
4483 * symtab.c: Protoized.
4485 Fri Nov 6 02:05:21 1992 Francois Pinard (pinard at icule)
4487 * m4.texinfo: Remove directory from diagnostics in 30.include,
4488 51.eval, 56.errprint and 57.m4exit tests.
4490 * m4.h: Remove declarations for int or void system functions, they
4491 cause more conflicting trouble than they make good.
4493 * configure.in: Avoid configuration header file. Add some tests.
4494 * m4.h: Remove #include "config.h".
4495 * Makefile.in, lib/Makefile.in: Implement Autoconf interface.
4496 Then, rewritten for better compliance with GNU standards.
4498 Thu Nov 5 12:37:13 1992 Francois Pinard (pinard at icule)
4500 * format.c (format): Avoid syntax error if not HAVE_EFGCVT,
4501 because of a misplaced #endif.
4503 * Many *.[hc] files: Correct intra-line spacing here and there,
4504 according to GNU indent 1.6 advice.
4506 * configure.in: New, using Autoconf 1.2.
4507 * m4.h: Reverse NO_MEMORY_H to NEED_MEMORY_H.
4508 * Delete old configure.in, configure, etc/configure.in,
4509 etc/configure, lib/configure.in, lib/configure and config/*.
4510 Reported by Jason Merrill.
4512 * symtab.c (hash): Change (char) NULL to '\0'.
4513 Reported by Jason Merrill.
4515 * Delete .vers, etc/newdist.sh, etc/newvers.sh and
4516 etc/nextvers.sh. Release numbers will be edited `by hand'.
4517 * version.h: De-automatize, force value in.
4519 * m4.c: Changes in order to use a newer getopt.h.
4520 Reported by David MacKenzie.
4522 * checks/: New name for examples/.
4523 * checks/get_them: New location for etc/get_examples.
4524 * checks/check_them: New location for etc/check_examples.
4525 * Makefile.in, checks/get_them, checks/check_them: Adjust.
4526 * lib/vfprintf.c: New location for etc/vfprintf.c.
4527 * Delete empty etc/.
4528 * examples/: New name for test/.
4530 Tue Mar 10 00:29:46 1992 Francois Pinard (pinard at icule)
4532 * Makefile.in (check): Add m4 as dependency.
4534 * m4.c: Accept --no-warnings instead of --no_warnings, and
4535 --no-gnu-extensions instead of --no_gnu_extensions. Make the
4536 usage message more informative.
4537 Reported by David MacKenzie.
4539 Mon Mar 9 14:53:40 1992 Francois Pinard (pinard at icule)
4541 * etc/check_examples: New name for check_examples.sh.
4542 * etc/get_examples: New name for get_examples.sh.
4543 * Makefile.in, etc/Makefile.in: Use new names.
4545 * Makefile.in: Transmit $(CC) while making in lib.
4547 * Many *.[hc] files: GNU indent'ed, with further fine tuning of
4548 code disposition by hand.
4550 Sun Mar 8 11:01:55 1992 Francois Pinard (pinard at icule)
4552 * m4.h: Delete definitions for abort() and exit().
4553 Reported by Richard Stallman.
4555 * config/hmake-unicos, config/s-unicos.h: New files.
4556 Reported by Hal Peterson.
4558 * eval.c (exp_term): Have N^0 return 1.
4559 Reported by Michael Fetterman.
4561 * eval.c, input.c, m4.h: Remove last comma in enums.
4562 Reported by Mike Lijewski.
4564 * Transfer of maintenance duties from Rene' to Franc,ois.
4566 Thu Oct 24 15:18:46 1991 Rene' Seindal (seindal at diku.dk)
4568 * Release 1.0. Many thanks to those, who provided me with bug
4569 reports and feedback.
4571 * Uses GNU configure, taken from the gdb distribution.
4573 * Uses GNU getopt(), with long option names.
4575 * The -Q/+quiet option is added, which suppresses warnings about
4576 missing or superflous arguments to built-in macros.
4578 * Added default options via the M4OPTS environment variable.
4580 * The built-in format can now be configured to use sprintf as
4581 the formatting engine, for systems without [efg]cvt(3).
4583 * GNU library code is moved to the ./lib subdirectory; other
4584 utility files are now in ./etc.
4586 * Several minor bugs have been fixed.
4588 Fri Jul 26 15:28:42 1991 Rene' Seindal (seindal at diku.dk)
4590 * Fixed various bugs. Release 0.99, manual 0.09. Many thanks to
4591 Francois Pinard and Roland H. Pesch for providing me with reports.
4593 * The builtins incr and decr are now implemented without use of
4596 * The builtin indir is added, to allow for indirect macro calls
4597 (allows use of "illegal" macro names).
4599 * The debugging and tracing facilities has been enhanced
4600 considerably. See the manual for details.
4602 * The -tMACRO option is added, marks MACRO for tracing as soon
4605 * Builtins are traced after renaming iff they were before.
4607 * Named files can now be undiverted.
4609 * The -Nnum option can be used to increase the number of
4610 divertions available.
4612 * Calling changecom without arguments now disables all comment
4615 * The function m4_patsubst() is now consistently declared
4618 * A bug in dnl is fixed.
4620 * A bug in the multi-character quoting code is fixed.
4622 * Several typos in the manual has been corrected. More probably
4625 * The m4.info file is now installed along with the program.
4627 Thu Nov 15 21:51:06 1990 Rene' Seindal (seindal at diku.dk)
4629 * Updated and enhanced version. Release 0.75, manual 0.07.
4631 * Implemented search path for include files (-I option and
4632 M4PATH envronment variable).
4634 * Implemented builtin "format" for printf-like formatting.
4636 * Implemented builtin "regexp" for searching for regular
4639 * Implemented builtin "patsubst" for substitution with regular
4642 * Implemented builtin "esyscmd", which expands to a shell
4645 * Implemented "__file__" and "__line__" for use in error
4648 * Implemented character ranges in "translit".
4650 * Implemented control over debugging output.
4652 * Implemented multi-character quotes.
4654 * Implemented multi-character comment delimiters.
4656 * Changed predefined macro "gnu" to "__gnu__".
4658 * Changed predefined macro "unix" to "__unix__", when the -G
4659 option is not used. With -G, "unix" is still defined.
4661 * Changed "shift", "$@" and "$*" to not insert spaces afters
4664 * Added program name to error messages.
4666 * Fixed two missing null bytes bugs.
4668 Mon Jan 22 21:08:52 1990 Rene' Seindal (seindal at diku.dk)
4670 * Initial beta release. Release 0.50, manual 0.05.
4680 Copyright (C) 1990, 1991, 1992, 1993, 1994, 2000, 2001, 2003,
4681 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
4683 Copying and distribution of this file, with or without
4684 modification, are permitted provided the copyright notice
4685 and this notice are preserved.