maint.mk

   1 # -*-Makefile-*-
   2 # This Makefile fragment tries to be general-purpose enough to be
   3 # used by at least coreutils, idutils, CPPI, Bison, and Autoconf.
   4
   5 ## Copyright (C) 2001-2008 Free Software Foundation, Inc.
   6 ##
   7 ## This program is free software: you can redistribute it and/or modify
   8 ## it under the terms of the GNU General Public License as published by
   9 ## the Free Software Foundation, either version 3 of the License, or
  10 ## (at your option) any later version.
  11 ##
  12 ## This program is distributed in the hope that it will be useful,
  13 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 ## GNU General Public License for more details.
  16 ##
  17 ## You should have received a copy of the GNU General Public License
  18 ## along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 # This is reported not to work with make-3.79.1
  21 # ME := $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
  22 ME := maint.mk
  23
  24 # Do not save the original name or timestamp in the .tar.gz file.
  25 # Use --rsyncable if available.
  26 gzip_rsyncable := \
  27   $(shell gzip --help 2>/dev/null|grep rsyncable >/dev/null && echo --rsyncable)
  28 GZIP_ENV = '--no-name --best $(gzip_rsyncable)'
  29
  30 GIT = git
  31 VC = $(GIT)
  32 VC-tag = git tag -s -m '$(VERSION)'
  33
  34 VC_LIST = $(srcdir)/build-aux/vc-list-files
  35
  36 VC_LIST_EXCEPT = \
  37   $(VC_LIST) | if test -f .x-$@; then grep -vEf .x-$@; else grep -v ChangeLog; fi
  38
  39 ifeq ($(origin prev_version_file), undefined)
  40   prev_version_file = $(srcdir)/.prev-version
  41 endif
  42
  43 PREV_VERSION := $(shell cat $(prev_version_file))
  44 VERSION_REGEXP = $(subst .,\.,$(VERSION))
  45 PREV_VERSION_REGEXP = $(subst .,\.,$(PREV_VERSION))
  46
  47 ifeq ($(VC),$(GIT))
  48 this-vc-tag = v$(VERSION)
  49 this-vc-tag-regexp = v$(VERSION_REGEXP)
  50 else
  51 tag-package = $(shell echo "$(PACKAGE)" | tr '[:lower:]' '[:upper:]')
  52 tag-this-version = $(subst .,_,$(VERSION))
  53 this-vc-tag = $(tag-package)-$(tag-this-version)
  54 this-vc-tag-regexp = $(this-vc-tag)
  55 endif
  56 my_distdir = $(PACKAGE)-$(VERSION)
  57
  58 # Old releases are stored here.
  59 release_archive_dir ?= ../release
  60
  61 # Prevent programs like 'sort' from considering distinct strings to be equal.
  62 # Doing it here saves us from having to set LC_ALL elsewhere in this file.
  63 export LC_ALL = C
  64
  65
  66
  67 ## --------------- ##
  68 ## Sanity checks.  ##
  69 ## --------------- ##
  70
  71 # Collect the names of rules starting with `sc_'.
  72 syntax-check-rules := $(shell sed -n 's/^\(sc_[a-zA-Z0-9_-]*\):.*/\1/p' \
  73                         $(srcdir)/$(ME))
  74 .PHONY: $(syntax-check-rules)
  75
  76 local-checks-available = \
  77   po-check copyright-check m4-check author_mark_check \
  78   patch-check strftime-check $(syntax-check-rules) \
  79   makefile_path_separator_check \
  80   makefile-check check-AUTHORS
  81 .PHONY: $(local-checks-available)
  82
  83 local-check := $(filter-out $(local-checks-to-skip), $(local-checks-available))
  84
  85 syntax-check: $(local-check)
  86 #       @grep -nE '#  *include <(limits|std(def|arg|bool))\.h>'         \
  87 #           $$(find -type f -name '*.[chly]') &&                        \
  88 #         { echo '$(ME): found conditional include' 1>&2;               \
  89 #           exit 1; } || :
  90
  91 #       grep -nE '^#  *include <(string|stdlib)\.h>'                    \
  92 #           $(srcdir)/{lib,src}/*.[chy] &&                              \
  93 #         { echo '$(ME): FIXME' 1>&2;                                   \
  94 #           exit 1; } || :
  95 # FIXME: don't allow `#include .strings\.h' anywhere
  96
  97 sc_avoid_if_before_free:
  98         @$(srcdir)/build-aux/useless-if-before-free                     \
  99                 $(useless_free_options)                                 \
 100             $$($(VC_LIST_EXCEPT)) &&                                    \
 101           { echo '$(ME): found useless "if" before "free" above' 1>&2;  \
 102             exit 1; } || :
 103
 104 sc_cast_of_argument_to_free:
 105         @grep -nE '\<free *\( *\(' $$($(VC_LIST_EXCEPT)) &&             \
 106           { echo '$(ME): don'\''t cast free argument' 1>&2;             \
 107             exit 1; } || :
 108
 109 sc_cast_of_x_alloc_return_value:
 110         @grep -nE '\*\) *x(m|c|re)alloc\>' $$($(VC_LIST_EXCEPT)) &&     \
 111           { echo '$(ME): don'\''t cast x*alloc return value' 1>&2;      \
 112             exit 1; } || :
 113
 114 sc_cast_of_alloca_return_value:
 115         @grep -nE '\*\) *alloca\>' $$($(VC_LIST_EXCEPT)) &&             \
 116           { echo '$(ME): don'\''t cast alloca return value' 1>&2;       \
 117             exit 1; } || :
 118
 119 sc_space_tab:
 120         @grep -n '[ ]   ' $$($(VC_LIST_EXCEPT)) &&                      \
 121           { echo '$(ME): found SPACE-TAB sequence; remove the SPACE'    \
 122                 1>&2; exit 1; } || :
 123
 124 # Don't use *scanf or the old ato* functions in `real' code.
 125 # They provide no error checking mechanism.
 126 # Instead, use strto* functions.
 127 sc_prohibit_atoi_atof:
 128         @grep -nE '\<([fs]?scanf|ato([filq]|ll))\>' $$($(VC_LIST_EXCEPT)) && \
 129           { echo '$(ME): do not use *scan''f, ato''f, ato''i, ato''l, ato''ll, ato''q, or ss''canf'     \
 130                 1>&2; exit 1; } || :
 131
 132 # Use STREQ rather than comparing strcmp == 0, or != 0.
 133 sc_prohibit_strcmp:
 134         @grep -nE '! *str''cmp *\(|\<str''cmp *\([^)]+\) *=='           \
 135             $$($(VC_LIST_EXCEPT)) &&                                    \
 136           { echo '$(ME): use STREQ in place of the above uses of str''cmp' \
 137                 1>&2; exit 1; } || :
 138
 139 # Using EXIT_SUCCESS as the first argument to error is misleading,
 140 # since when that parameter is 0, error does not exit.  Use `0' instead.
 141 sc_error_exit_success:
 142         @grep -nF 'error (EXIT_SUCCESS,'                                \
 143             $$(find -type f -name '*.[chly]') &&                        \
 144           { echo '$(ME): found error (EXIT_SUCCESS' 1>&2;               \
 145             exit 1; } || :
 146
 147 # `FATAL:' should be fully upper-cased in error messages
 148 # `WARNING:' should be fully upper-cased, or fully lower-cased
 149 sc_error_message_warn_fatal:
 150         @grep -nEA2 '[^rp]error \(' $$($(VC_LIST_EXCEPT))               \
 151             | grep -E '"Warning|"Fatal|"fatal' &&                       \
 152           { echo '$(ME): use FATAL, WARNING or warning' 1>&2;           \
 153             exit 1; } || :
 154
 155 # Error messages should not start with a capital letter
 156 sc_error_message_uppercase:
 157         @grep -nEA2 '[^rp]error \(' $$($(VC_LIST_EXCEPT))               \
 158             | grep -E '"[A-Z]'                                          \
 159             | grep -vE '"FATAL|"WARNING|"Java|"C#|PRIuMAX' &&           \
 160           { echo '$(ME): found capitalized error message' 1>&2;         \
 161             exit 1; } || :
 162
 163 # Error messages should not end with a period
 164 sc_error_message_period:
 165         @grep -nEA2 '[^rp]error \(' $$($(VC_LIST_EXCEPT))               \
 166             | grep -E '[^."]\."' &&                                     \
 167           { echo '$(ME): found error message ending in period' 1>&2;    \
 168             exit 1; } || :
 169
 170 sc_file_system:
 171         @grep -ni 'file''system' $$($(VC_LIST_EXCEPT)) &&               \
 172           { echo '$(ME): found use of "file''system";'                  \
 173             'rewrite to use "file system"' 1>&2;                        \
 174             exit 1; } || :
 175
 176 # Don't use cpp tests of this symbol.  All code assumes config.h is included.
 177 sc_no_have_config_h:
 178         @grep -n '^# *if.*HAVE''_CONFIG_H' $$($(VC_LIST_EXCEPT)) &&     \
 179           { echo '$(ME): found use of HAVE''_CONFIG_H; remove'          \
 180                 1>&2; exit 1; } || :
 181
 182 # Nearly all .c files must include <config.h>.
 183 sc_require_config_h:
 184         @if $(VC_LIST_EXCEPT) | grep '\.c$$' > /dev/null; then          \
 185           grep -L '^# *include <config\.h>'                             \
 186                 $$($(VC_LIST_EXCEPT) | grep '\.c$$')                    \
 187               | grep . &&                                               \
 188           { echo '$(ME): the above files do not include <config.h>'     \
 189                 1>&2; exit 1; } || :;                                   \
 190         else :;                                                         \
 191         fi
 192
 193 # To use this "command" macro, you must first define two shell variables:
 194 # h: the header, enclosed in <> or ""
 195 # re: a regular expression that matches IFF something provided by $h is used.
 196 define _header_without_use
 197   h_esc=`echo "$$h"|sed 's/\./\\./'`;                                   \
 198   if $(VC_LIST_EXCEPT) | grep '\.c$$' > /dev/null; then                 \
 199     files=$$(grep -l '^# *include '"$$h_esc"                            \
 200              $$($(VC_LIST_EXCEPT) | grep '\.c$$')) &&                   \
 201     grep -LE "$$re" $$files | grep . &&                                 \
 202       { echo "$(ME): the above files include $$h but don't use it"      \
 203         1>&2; exit 1; } || :;                                           \
 204   else :;                                                               \
 205   fi
 206 endef
 207
 208 # Prohibit the inclusion of assert.h without an actual use of assert.
 209 sc_prohibit_assert_without_use:
 210         @h='<assert.h>' re='\<assert *\(' $(_header_without_use)
 211
 212 # Prohibit the inclusion of getopt.h without an actual use.
 213 sc_prohibit_getopt_without_use:
 214         @h='<getopt.h>' re='\<getopt(_long)? *\(' $(_header_without_use)
 215
 216 # Don't include quotearg.h unless you use one of its functions.
 217 sc_prohibit_quotearg_without_use:
 218         @h='"quotearg.h"' re='\<quotearg(_[^ ]+)? *\(' $(_header_without_use)
 219
 220 # Don't include quote.h unless you use one of its functions.
 221 sc_prohibit_quote_without_use:
 222         @h='"quote.h"' re='\<quote(_n)? *\(' $(_header_without_use)
 223
 224 # Don't include this header unless you use one of its functions.
 225 sc_prohibit_long_options_without_use:
 226         @h='"long-options.h"' re='\<parse_long_options *\(' \
 227           $(_header_without_use)
 228
 229 # Don't include this header unless you use one of its functions.
 230 sc_prohibit_inttostr_without_use:
 231         @h='"inttostr.h"' re='\<(off|[iu]max|uint)tostr *\(' \
 232           $(_header_without_use)
 233
 234 # Don't include this header unless you use one of its functions.
 235 sc_prohibit_error_without_use:
 236         @h='"error.h"' \
 237         re='\<error(_at_line|_print_progname|_one_per_line|_message_count)? *\('\
 238           $(_header_without_use)
 239
 240 sc_prohibit_safe_read_without_use:
 241         @h='"safe-read.h"' re='(\<SAFE_READ_ERROR\>|\<safe_read *\()' \
 242           $(_header_without_use)
 243
 244 sc_prohibit_argmatch_without_use:
 245         @h='"argmatch.h"' \
 246         re='(\<(ARRAY_CARDINALITY|X?ARGMATCH(|_TO_ARGUMENT|_VERIFY))\>|\<argmatch(_exit_fn|_(in)?valid) *\()' \
 247           $(_header_without_use)
 248
 249 sc_prohibit_root_dev_ino_without_use:
 250         @h='"root-dev-ino.h"' \
 251         re='(\<ROOT_DEV_INO_(CHECK|WARN)\>|\<get_root_dev_ino *\()' \
 252           $(_header_without_use)
 253
 254 sc_obsolete_symbols:
 255         @grep -nE '\<(HAVE''_FCNTL_H|O''_NDELAY)\>'                     \
 256              $$($(VC_LIST_EXCEPT)) &&                                   \
 257           { echo '$(ME): do not use HAVE''_FCNTL_H or O''_NDELAY'       \
 258                 1>&2; exit 1; } || :
 259
 260 # FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
 261
 262 # Each nonempty line must start with a year number, or a TAB.
 263 sc_changelog:
 264         @grep -n '^[^12 ]' $$(find . -maxdepth 2 -name ChangeLog) &&    \
 265           { echo '$(ME): found unexpected prefix in a ChangeLog' 1>&2;  \
 266             exit 1; } || :
 267
 268 # Ensure that dd's definition of LONGEST_SYMBOL stays in sync
 269 # with the strings from the two affected variables.
 270 dd_c = $(srcdir)/src/dd.c
 271 sc_dd_max_sym_length:
 272 ifneq ($(wildcard $(dd_c)),)
 273         @len=$$( (sed -n '/conversions\[\] =$$/,/^};/p' $(dd_c);\
 274                  sed -n '/flags\[\] =$$/,/^};/p' $(dd_c) )      \
 275                 |sed -n '/"/s/^[^"]*"\([^"]*\)".*/\1/p'         \
 276               | wc --max-line-length);                          \
 277         max=$$(sed -n '/^#define LONGEST_SYMBOL /s///p' $(dd_c) \
 278               |tr -d '"' | wc --max-line-length);               \
 279         if test "$$len" = "$$max"; then :; else                 \
 280           echo 'dd.c: LONGEST_SYMBOL is not longest' 1>&2;      \
 281           exit 1;                                               \
 282         fi
 283 endif
 284
 285 # Many m4 macros names once began with `jm_'.
 286 # On 2004-04-13, they were all changed to start with gl_ instead.
 287 # Make sure that none are inadvertently reintroduced.
 288 sc_prohibit_jm_in_m4:
 289         @grep -nE 'jm_[A-Z]'                                            \
 290                 $$($(VC_LIST) m4 |grep '\.m4$$'; echo /dev/null) &&     \
 291             { echo '$(ME): do not use jm_ in m4 macro names'            \
 292               1>&2; exit 1; } || :
 293
 294 # Ensure that each root-requiring test is run via the "check-root" rule.
 295 sc_root_tests:
 296         @if test -d tests \
 297               && grep check-root tests/Makefile.am>/dev/null 2>&1; then \
 298         t1=sc-root.expected; t2=sc-root.actual;                         \
 299         grep -nl '^require_root_$$'                                     \
 300           $$($(VC_LIST) tests) |sed s,tests/,, |sort > $$t1;            \
 301         sed -n '/^root_tests =[  ]*\\$$/,/[^\]$$/p'                     \
 302           $(srcdir)/tests/Makefile.am                                   \
 303             | sed 's/^  *//;/^root_tests =/d'                           \
 304             | tr -s '\012\\' '  ' | fmt -1 | sort > $$t2;               \
 305         diff -u $$t1 $$t2 || diff=1;                                    \
 306         rm -f $$t1 $$t2;                                                \
 307         test "$$diff"                                                   \
 308           && { echo 'tests/Makefile.am: missing check-root action'>&2;  \
 309                exit 1; } || :;                                          \
 310         fi
 311
 312 headers_with_interesting_macro_defs = \
 313   exit.h        \
 314   fcntl_.h      \
 315   fnmatch_.h    \
 316   intprops.h    \
 317   inttypes_.h   \
 318   lchown.h      \
 319   openat.h      \
 320   stat-macros.h \
 321   stdint_.h
 322
 323 # Create a list of regular expressions matching the names
 324 # of macros that are guaranteed by parts of gnulib to be defined.
 325 .re-defmac:
 326         @(cd $(srcdir)/lib;                                             \
 327           for f in $(headers_with_interesting_macro_defs); do           \
 328             test -f $$f &&                                              \
 329               sed -n '/^# *define \([^_ (][^ (]*\)[ (].*/s//\1/p' $$f;  \
 330            done;                                                        \
 331          ) | sort -u                                                    \
 332            | grep -Ev 'ATTRIBUTE_NORETURN|SIZE_MAX'                     \
 333            | sed 's/^/^# *define /'                                     \
 334           > $@-t
 335         @mv $@-t $@
 336
 337 # Don't define macros that we already get from gnulib header files.
 338 sc_always_defined_macros: .re-defmac
 339         @if test -f $(srcdir)/src/system.h; then                        \
 340           trap 'rc=$$?; rm -f .re-defmac; exit $$rc' 0 1 2 3 15;        \
 341           grep -f .re-defmac $$($(VC_LIST))                             \
 342             && { echo '$(ME): define the above via some gnulib .h file' \
 343                   1>&2;  exit 1; } || :;                                \
 344         fi
 345
 346 # Create a list of regular expressions matching the names
 347 # of files included from system.h.  Exclude a couple.
 348 .re-list:
 349         @sed -n '/^# *include /s///p' $(srcdir)/src/system.h \
 350           | grep -Ev 'sys/(param|file)\.h' \
 351           | sed 's/ .*//;;s/^["<]/^# *include [<"]/;s/\.h[">]$$/\\.h[">]/' \
 352           > $@-t
 353         @mv $@-t $@
 354
 355 # Files in src/ should not include directly any of
 356 # the headers already included via system.h.
 357 sc_system_h_headers: .re-list
 358         @if test -f $(srcdir)/src/system.h; then                        \
 359           trap 'rc=$$?; rm -f .re-list; exit $$rc' 0 1 2 3 15;          \
 360           grep -nE -f .re-list                                          \
 361               $$($(VC_LIST) src |                                       \
 362                  grep -Ev '((copy|system)\.h|parse-gram\.c)$$')         \
 363             && { echo '$(ME): the above are already included via system.h'\
 364                   1>&2;  exit 1; } || :;                                \
 365         fi
 366
 367 # Ensure that each .c file containing a "main" function also
 368 # calls set_program_name.
 369 sc_program_name:
 370         @if $(VC_LIST_EXCEPT) | grep '\.c$$' > /dev/null; then          \
 371           files=$$(grep -l '^main *(' $$($(VC_LIST_EXCEPT) | grep '\.c$$')); \
 372           grep -LE 'set_program_name *\(m?argv\[0\]\);' $$files         \
 373               | grep . &&                                               \
 374           { echo '$(ME): the above files do not call set_program_name'  \
 375                 1>&2; exit 1; } || :;                                   \
 376         else :;                                                         \
 377         fi
 378
 379 # Require that the final line of each test-lib.sh-using test be this one:
 380 # Exit $fail
 381 # Note: this test requires GNU grep's --label= option.
 382 sc_require_test_exit_idiom:
 383         @if test -f $(srcdir)/tests/test-lib.sh; then                   \
 384           die=0;                                                        \
 385           for i in $$(grep -l -F /../test-lib.sh $$($(VC_LIST) tests)); do \
 386             tail -n1 $$i | grep '^Exit \$$fail$$' > /dev/null \
 387               && : || { die=1; echo $$i; }                              \
 388           done;                                                         \
 389           test $$die = 1 &&                                             \
 390             { echo 1>&2 '$(ME): the final line in each of the above is not:'; \
 391               echo 1>&2 'Exit $$fail';                  \
 392               exit 1; } || :;                                           \
 393         fi
 394
 395 sc_sun_os_names:
 396         @grep -nEi \
 397             'solaris[^[:alnum:]]*2\.(7|8|9|[1-9][0-9])|sunos[^[:alnum:]][6-9]' \
 398             $$($(VC_LIST_EXCEPT)) &&                                    \
 399           { echo '$(ME): found misuse of Sun OS version numbers' 1>&2;  \
 400             exit 1; } || :
 401
 402 sc_the_the:
 403         @grep -ni '\<the ''the\>' $$($(VC_LIST_EXCEPT)) &&              \
 404           { echo '$(ME): found use of "the ''the";' 1>&2;               \
 405             exit 1; } || :
 406
 407 sc_tight_scope:
 408         $(MAKE) -C src $@
 409
 410 sc_trailing_blank:
 411         @grep -n '[      ]$$' $$($(VC_LIST_EXCEPT)) &&                  \
 412           { echo '$(ME): found trailing blank(s)'                       \
 413                 1>&2; exit 1; } || :
 414
 415 # Match lines like the following, but where there is only one space
 416 # between the options and the description:
 417 #   -D, --all-repeated[=delimit-method]  print all duplicate lines\n
 418 longopt_re = --[a-z][0-9A-Za-z-]*(\[?=[0-9A-Za-z-]*\]?)?
 419 sc_two_space_separator_in_usage:
 420         @grep -nE '^   *(-[A-Za-z],)? $(longopt_re) [^ ].*\\$$'         \
 421             $$($(VC_LIST_EXCEPT)) &&                                    \
 422           { echo "$(ME): help2man requires at least two spaces between"; \
 423             echo "$(ME): an option and its description"; \
 424                 1>&2; exit 1; } || :
 425
 426 # Look for diagnostics that aren't marked for translation.
 427 # This won't find any for which error's format string is on a separate line.
 428 sc_unmarked_diagnostics:
 429         @grep -nE                                                       \
 430             '\<error \([^"]*"[^"]*[a-z]{3}' $$($(VC_LIST_EXCEPT))       \
 431           | grep -v '_''(' &&                                           \
 432           { echo '$(ME): found unmarked diagnostic(s)' 1>&2;            \
 433             exit 1; } || :
 434
 435 # Avoid useless parentheses like those in this example:
 436 # #if defined (SYMBOL) || defined (SYM2)
 437 sc_useless_cpp_parens:
 438         @grep -n '^# *if .*defined *(' $$($(VC_LIST_EXCEPT)) &&         \
 439           { echo '$(ME): found useless parentheses in cpp directive'    \
 440                 1>&2; exit 1; } || :
 441
 442 # Require the latest GPL.
 443 sc_GPL_version:
 444         @grep -n 'either ''version [^3]' $$($(VC_LIST_EXCEPT)) &&       \
 445           { echo '$(ME): GPL vN, N!=3' 1>&2; exit 1; } || :
 446
 447 # Perl-based tests used to exec perl from a #!/bin/sh script.
 448 # Now they all start with #!/usr/bin/perl and the portability
 449 # infrastructure is in tests/Makefile.am.  Make sure no old-style
 450 # script sneaks back in.
 451 sc_no_exec_perl_coreutils:
 452         @if test -f $(srcdir)/tests/Coreutils.pm; then                  \
 453           grep '^exec  *\$$PERL.*MCoreutils' $$($(VC_LIST) tests) &&    \
 454             { echo 1>&2 '$(ME): found anachronistic Perl-based tests';  \
 455               exit 1; } || :;                                           \
 456         fi
 457
 458 # Make sure we don't use st_blocks.  Use ST_NBLOCKS instead.
 459 # This is a bit of a kludge, since it prevents use of the string
 460 # even in comments, but for now it does the job with no false positives.
 461 sc_prohibit_stat_st_blocks:
 462         @grep -nE '[.>]st_blocks' $$($(VC_LIST_EXCEPT)) && \
 463           { echo '$(ME): do not use st_blocks; use ST_NBLOCKS'          \
 464                 1>&2; exit 1; } || :
 465
 466 # Make sure we don't define any S_IS* macros in src/*.c files.
 467 # They're already defined via gnulib's sys/stat.h replacement.
 468 sc_prohibit_S_IS_definition:
 469         @grep -nE '^ *# *define  *S_IS' $$($(VC_LIST_EXCEPT)) &&        \
 470           { echo '$(ME): do not define S_IS* macros; include <sys/stat.h>' \
 471                 1>&2; exit 1; } || :
 472
 473 NEWS_hash = \
 474   $$(sed -n '/^\*.* $(PREV_VERSION_REGEXP) ([0-9-]*)/,$$p' \
 475      $(srcdir)/NEWS | md5sum -)
 476
 477 # Ensure that we don't accidentally insert an entry into an old NEWS block.
 478 sc_immutable_NEWS:
 479         @if test -f $(srcdir)/NEWS; then                                \
 480           test "$(NEWS_hash)" = '$(old_NEWS_hash)' && : ||              \
 481             { echo '$(ME): you have modified old NEWS' 1>&2; exit 1; }; \
 482         fi
 483
 484 # Each program that uses proper_name_utf8 must link with
 485 # one of the ICONV libraries.
 486 sc_proper_name_utf8_requires_ICONV:
 487         @progs=$$(grep -l 'proper_name_utf8 ''("' $$($(VC_LIST_EXCEPT)));\
 488         if test "x$$progs" != x; then                                   \
 489           fail=0;                                                       \
 490           for p in $$progs; do                                          \
 491             dir=$$(dirname "$$p");                                      \
 492             base=$$(basename "$$p" .c);                                 \
 493             grep "$${base}_LDADD.*ICONV)" $$dir/Makefile.am > /dev/null \
 494               || { fail=1; echo 1>&2 "$(ME): $$p uses proper_name_utf8"; }; \
 495           done;                                                         \
 496           test $$fail = 1 &&                                            \
 497             { echo 1>&2 '$(ME): the above do not link with any ICONV library'; \
 498               exit 1; } || :;                                           \
 499         fi
 500
 501 # Warn about "c0nst struct Foo const foo[]",
 502 # but not about "char const *const foo" or "#define const const".
 503 sc_redundant_const:
 504         @grep -E '\bconst\b[[:space:][:alnum:]]{2,}\bconst\b'           \
 505                 $$($(VC_LIST_EXCEPT)) &&                                \
 506             { echo 1>&2 '$(ME): redundant "const" in declarations';     \
 507               exit 1; } || :
 508
 509 sc_const_long_option:
 510         @grep '^ *static.*struct option ' $$($(VC_LIST_EXCEPT))         \
 511           | grep -Ev 'const struct option|struct option const' && {     \
 512               echo 1>&2 '$(ME): add "const" to the above declarations'; \
 513               exit 1; } || :
 514
 515 # Update the hash stored above.  Do this after each release and
 516 # for any corrections to old entries.
 517 update-NEWS-hash: NEWS
 518         perl -pi -e 's/^(old_NEWS_hash = ).*/$${1}'"$(NEWS_hash)/" \
 519           $(srcdir)/cfg.mk
 520
 521 epoch_date = 1970-01-01 00:00:00.000000000 +0000
 522 # Ensure that the c99-to-c89 patch applies cleanly.
 523 patch-check:
 524         rm -rf src-c89 $@.1 $@.2
 525         cp -a $(srcdir)/src src-c89
 526         if test "x$(srcdir)" != x.; then \
 527           cp -a src/* src-c89; \
 528           dotfiles=`ls src/.[!.]* 2>/dev/null`; \
 529           test -z "$$dotfiles" || cp -a src/.[!.]* src-c89; \
 530         fi
 531         (cd src-c89; patch -p1 -V never --fuzz=0) < $(srcdir)/src/c99-to-c89.diff \
 532           > $@.1 2>&1
 533         if test "$(REGEN_PATCH)" = yes; then                    \
 534           diff -upr $(srcdir)/src src-c89 | sed 's,$(srcdir)/src-c89/,src/,'    \
 535             | grep -vE '^(Only in|File )'                       \
 536             | perl -pe 's/^((?:\+\+\+|---) \S+\t).*/$${1}$(epoch_date)/;' \
 537                -e 's/^ $$//'                                    \
 538             > new-diff || : ; fi
 539         grep -v '^patching file ' $@.1 > $@.2 || :
 540         msg=ok; test -s $@.2 && msg='fuzzy patch' || : ;        \
 541         rm -f src-c89/*.o || msg='rm failed';                   \
 542         $(MAKE) -C src-c89 CFLAGS='-Wdeclaration-after-statement -Werror' \
 543           || msg='compile failure with extra options';          \
 544         test "$$msg" = ok && rm -rf src-c89 $@.1 $@.2 || echo "$$msg" 1>&2; \
 545         test "$$msg" = ok
 546
 547 # Ensure that date's --help output stays in sync with the info
 548 # documentation for GNU strftime.  The only exception is %N,
 549 # which date accepts but GNU strftime does not.
 550 extract_char = sed 's/^[^%][^%]*%\(.\).*/\1/'
 551 strftime-check:
 552         if test -f $(srcdir)/src/date.c; then                           \
 553           grep '^  %.  ' $(srcdir)/src/date.c | sort                    \
 554             | $(extract_char) > $@-src;                                 \
 555           { echo N;                                                     \
 556             info libc date calendar format | grep '^    `%.'\'          \
 557               | $(extract_char); } | sort > $@-info;                    \
 558           diff -u $@-src $@-info || exit 1;                             \
 559           rm -f $@-src $@-info;                                         \
 560         fi
 561
 562 check-AUTHORS:
 563         $(MAKE) -C src $@
 564
 565 # Ensure that we use only the standard $(VAR) notation,
 566 # not @...@ in Makefile.am, now that we can rely on automake
 567 # to emit a definition for each substituted variable.
 568 # We use perl rather than "grep -nE ..." to exempt a single
 569 # use of an @...@-delimited variable name in src/Makefile.am.
 570 makefile-check:
 571         @perl -ne '/\@[A-Z_0-9]+\@/ && !/^cu_install_program =/'        \
 572           -e 'and (print "$$ARGV:$$.: $$_"), $$m=1; END {exit !$$m}'    \
 573             $$($(VC_LIST_EXCEPT) | grep -E '(^|/)Makefile\.am$$')       \
 574           && { echo '$(ME): use $$(...), not @...@' 1>&2; exit 1; } || :
 575
 576 news-date-check: NEWS
 577         today=`date +%Y-%m-%d`;                                         \
 578         if head NEWS | grep '^\*.* $(VERSION_REGEXP) ('$$today')'       \
 579             >/dev/null; then                                            \
 580           :;                                                            \
 581         else                                                            \
 582           echo "version or today's date is not in NEWS" 1>&2;           \
 583           exit 1;                                                       \
 584         fi
 585
 586 changelog-check:
 587         if head ChangeLog | grep 'Version $(VERSION_REGEXP)\.$$'        \
 588             >/dev/null; then                                            \
 589           :;                                                            \
 590         else                                                            \
 591           echo "$(VERSION) not in ChangeLog" 1>&2;                      \
 592           exit 1;                                                       \
 593         fi
 594
 595 m4-check:
 596         @grep -n 'AC_DEFUN([^[]' m4/*.m4 \
 597           && { echo '$(ME): quote the first arg to AC_DEFUN' 1>&2; \
 598                exit 1; } || :
 599
 600 fix_po_file_diag = \
 601 'you have changed the set of files with translatable diagnostics;\n\
 602 apply the above patch\n'
 603
 604 # Verify that all source files using _() are listed in po/POTFILES.in.
 605 po_file = po/POTFILES.in
 606 po-check:
 607         @if test -f $(po_file); then                                    \
 608           grep -E -v '^(#|$$)' $(po_file)                               \
 609             | grep -v '^src/false\.c$$' | sort > $@-1;                  \
 610           files=;                                                       \
 611           for file in $$($(VC_LIST_EXCEPT)) lib/*.[ch]; do              \
 612             case $$file in                                              \
 613               *.?|*.??) ;;                                              \
 614               *) continue;;                                             \
 615             esac;                                                       \
 616             case $$file in                                              \
 617             *.[ch])                                                     \
 618               base=`expr " $$file" : ' \(.*\)\..'`;                     \
 619               { test -f $$base.l || test -f $$base.y; } && continue;;   \
 620             esac;                                                       \
 621             files="$$files $$file";                                     \
 622           done;                                                         \
 623           grep -E -l '\b(N?_|gettext *)\([^)"]*("|$$)' $$files          \
 624             | sort -u > $@-2;                                           \
 625           diff -u -L $(po_file) -L $(po_file) $@-1 $@-2                 \
 626             || { printf '$(ME): '$(fix_po_file_diag) 1>&2; exit 1; };   \
 627           rm -f $@-1 $@-2;                                              \
 628         fi
 629
 630 # In a definition of #define AUTHORS "... and ..." where the RHS contains
 631 # the English word `and', the string must be marked with `N_ (...)' so that
 632 # gettext recognizes it as a string requiring translation.
 633 author_mark_check:
 634         @grep -n '^# *define AUTHORS "[^"]* and ' src/*.c |grep -v ' N_ (' && \
 635           { echo '$(ME): enclose the above strings in N_ (...)' 1>&2; \
 636             exit 1; } || :
 637
 638 # Sometimes it is useful to change the PATH environment variable
 639 # in Makefiles.  When doing so, it's better not to use the Unix-centric
 640 # path separator of `:', but rather the automake-provided `@PATH_SEPARATOR@'.
 641 # It'd be better to use `find -print0 ...|xargs -0 ...', but less portable,
 642 # and there probably aren't many projects with so many Makefile.am files
 643 # that we'd have to worry about limits on command line length.
 644 msg = '$(ME): Do not use `:'\'' above; use @PATH_SEPARATOR@ instead'
 645 makefile_path_separator_check:
 646         @grep -n 'PATH=.*:' `find $(srcdir) -name Makefile.am` \
 647           && { echo $(msg) 1>&2; exit 1; } || :
 648
 649 # Check that `make alpha' will not fail at the end of the process.
 650 writable-files:
 651         if test -d $(release_archive_dir); then :; else                 \
 652           for file in $(distdir).tar.gz                                 \
 653                       $(release_archive_dir)/$(distdir).tar.gz; do      \
 654             test -e $$file || continue;                                 \
 655             test -w $$file                                              \
 656               || { echo ERROR: $$file is not writable; fail=1; };       \
 657           done;                                                         \
 658           test "$$fail" && exit 1 || : ;                                \
 659         fi
 660
 661 v_etc_file = lib/version-etc.c
 662 sample-test = tests/sample-test
 663 texi = doc/$(PACKAGE).texi
 664 # Make sure that the copyright date in $(v_etc_file) is up to date.
 665 # Do the same for the $(sample-test) and the main doc/.texi file.
 666 copyright-check:
 667         @if test -f $(v_etc_file); then \
 668           grep 'enum { COPYRIGHT_YEAR = '$$(date +%Y)' };' $(v_etc_file) \
 669             >/dev/null \
 670           || { echo 'out of date copyright in $(v_etc_file); update it' 1>&2; \
 671                exit 1; }; \
 672         fi
 673         @if test -f $(sample-test); then \
 674           grep '# Copyright (C) '$$(date +%Y)' Free' $(sample-test) \
 675             >/dev/null \
 676           || { echo 'out of date copyright in $(sample-test); update it' 1>&2; \
 677                exit 1; }; \
 678         fi
 679         @if test -f $(texi); then \
 680           grep 'Copyright @copyright{} .*'$$(date +%Y)' Free' $(texi) \
 681             >/dev/null \
 682           || { echo 'out of date copyright in $(texi); update it' 1>&2; \
 683                exit 1; }; \
 684         fi
 685
 686 vc-diff-check:
 687         $(VC) diff > vc-diffs || :
 688         if test -s vc-diffs; then                               \
 689           cat vc-diffs;                                         \
 690           echo "Some files are locally modified:" 1>&2;         \
 691           exit 1;                                               \
 692         else                                                    \
 693           rm vc-diffs;                                          \
 694         fi
 695
 696 cvs-check: vc-diff-check
 697
 698 maintainer-distcheck:
 699         $(MAKE) distcheck
 700         $(MAKE) taint-distcheck
 701         $(MAKE) my-distcheck
 702
 703
 704 # Don't make a distribution if checks fail.
 705 # Also, make sure the NEWS file is up-to-date.
 706 vc-dist: $(local-check) cvs-check maintainer-distcheck
 707         $(MAKE) dist
 708
 709 # Use this to make sure we don't run these programs when building
 710 # from a virgin tgz file, below.
 711 null_AM_MAKEFLAGS = \
 712   ACLOCAL=false \
 713   AUTOCONF=false \
 714   AUTOMAKE=false \
 715   AUTOHEADER=false \
 716   MAKEINFO=false
 717
 718 built_programs = $$(cd src && MAKEFLAGS= $(MAKE) -s built_programs.list)
 719
 720 warn_cflags = -Dlint -O -Werror -Wall -Wformat -Wshadow -Wpointer-arith
 721 bin=bin-$$$$
 722
 723 write_loser = printf '\#!%s\necho $$0: bad path 1>&2; exit 1\n' '$(SHELL)'
 724
 725 TMPDIR ?= /tmp
 726 t=$(TMPDIR)/$(PACKAGE)/test
 727 pfx=$(t)/i
 728
 729 # More than once, tainted build and source directory names would
 730 # have caused at least one "make check" test to apply "chmod 700"
 731 # to all directories under $HOME.  Make sure it doesn't happen again.
 732 tp := $(shell echo "$(TMPDIR)/$(PACKAGE)-$$$$")
 733 t_prefix = $(tp)/a
 734 t_taint = '$(t_prefix) b'
 735 fake_home = $(tp)/home
 736
 737 # Ensure that tests run from tainted build and src dir names work,
 738 # and don't affect anything in $HOME.  Create witness files in $HOME,
 739 # record their attributes, and build/test.  Then ensure that the
 740 # witnesses were not affected.
 741 taint-distcheck: $(DIST_ARCHIVES)
 742         test -d $(t_taint) && chmod -R 700 $(t_taint) || :
 743         -rm -rf $(t_taint) $(fake_home)
 744         mkdir -p $(t_prefix) $(t_taint) $(fake_home)
 745         GZIP=$(GZIP_ENV) $(AMTAR) -C $(t_taint) -zxf $(distdir).tar.gz
 746         mkfifo $(fake_home)/fifo
 747         touch $(fake_home)/f
 748         mkdir -p $(fake_home)/d/e
 749         ls -lR $(fake_home) $(t_prefix) > $(tp)/.ls-before
 750         cd $(t_taint)/$(distdir)                        \
 751           && ./configure                                \
 752           && $(MAKE)                                    \
 753           && HOME=$(fake_home) $(MAKE) check            \
 754           && ls -lR $(fake_home) $(t_prefix) > $(tp)/.ls-after \
 755           && diff $(tp)/.ls-before $(tp)/.ls-after      \
 756           && test -d $(t_prefix)
 757         rm -rf $(tp)
 758
 759 # Verify that a twisted use of --program-transform-name=PROGRAM works.
 760 define install-transform-check
 761   rm -rf $(pfx);                                        \
 762   $(MAKE) program_transform_name='s/.*/zyx/'            \
 763       prefix=$(pfx) install                             \
 764     && test "$$(echo $(pfx)/bin/*)" = "$(pfx)/bin/zyx"  \
 765     && test "$$(echo $(pfx)/share/man/man1/*)" =        \
 766                     "$(pfx)/share/man/man1/zyx.1"
 767 endef
 768
 769 # Install, then verify that all binaries and man pages are in place.
 770 # Note that neither the binary, ginstall, nor the ].1 man page is installed.
 771 define my-instcheck
 772   $(MAKE) prefix=$(pfx) install                         \
 773     && test ! -f $(pfx)/bin/ginstall                    \
 774     && { fail=0;                                        \
 775       for i in $(built_programs); do                    \
 776         test "$$i" = ginstall && i=install;             \
 777         for j in "$(pfx)/bin/$$i"                       \
 778                  "$(pfx)/share/man/man1/$$i.1"; do      \
 779           case $$j in *'[.1') continue;; esac;          \
 780           test -f "$$j" && :                            \
 781             || { echo "$$j not installed"; fail=1; };   \
 782         done;                                           \
 783       done;                                             \
 784       test $$fail = 1 && exit 1 || :;                   \
 785     }
 786 endef
 787
 788 define coreutils-path-check
 789   {                                                     \
 790     if test -f $(srcdir)/src/true.c; then               \
 791       fail=1;                                           \
 792       mkdir $(bin)                                      \
 793         && ($(write_loser)) > $(bin)/loser              \
 794         && chmod a+x $(bin)/loser                       \
 795         && for i in $(built_programs); do               \
 796                case $$i in                              \
 797                  rm|expr|basename|echo|sort|ls|tr);;    \
 798                  cat|dirname|mv|wc);;                   \
 799                  *) ln $(bin)/loser $(bin)/$$i;;        \
 800                esac;                                    \
 801              done                                       \
 802           && ln -sf ../src/true $(bin)/false            \
 803           && PATH=`pwd`/$(bin):$$PATH $(MAKE) -C tests check \
 804           && { test -d gnulib-tests                     \
 805                  && $(MAKE) -C gnulib-tests check       \
 806                  || :; }                                \
 807           && rm -rf $(bin)                              \
 808           && fail=0;                                    \
 809     else                                                \
 810       fail=0;                                           \
 811     fi;                                                 \
 812     test $$fail = 1 && exit 1 || :;                     \
 813   }
 814 endef
 815
 816 # Use -Wformat -Werror to detect format-string/arg-list mismatches.
 817 # Also, check for shadowing problems with -Wshadow, and for pointer
 818 # arithmetic problems with -Wpointer-arith.
 819 # These CFLAGS are pretty strict.  If you build this target, you probably
 820 # have to have a recent version of gcc and glibc headers.
 821 # The hard-linking for-loop below ensures that there is a bin/ directory
 822 # full of all of the programs under test (except the ones that are required
 823 # for basic Makefile rules), all symlinked to the just-built "false" program.
 824 # This is to ensure that if ever a test neglects to make PATH include
 825 # the build srcdir, these always-failing programs will run.
 826 # Otherwise, it is too easy to test the wrong programs.
 827 # Note that "false" itself is a symlink to true, so it too will malfunction.
 828 my-distcheck: $(DIST_ARCHIVES) $(local-check)
 829         $(MAKE) syntax-check
 830         $(MAKE) check
 831         -rm -rf $(t)
 832         mkdir -p $(t)
 833         GZIP=$(GZIP_ENV) $(AMTAR) -C $(t) -zxf $(distdir).tar.gz
 834         cd $(t)/$(distdir)                              \
 835           && ./configure --disable-nls                  \
 836           && $(MAKE) CFLAGS='$(warn_cflags)'            \
 837               AM_MAKEFLAGS='$(null_AM_MAKEFLAGS)'       \
 838           && $(MAKE) dvi                                \
 839           && $(install-transform-check)                 \
 840           && $(my-instcheck)                            \
 841           && $(coreutils-path-check)                    \
 842           && $(MAKE) distclean
 843         (cd $(t) && mv $(distdir) $(distdir).old        \
 844           && $(AMTAR) -zxf - ) < $(distdir).tar.gz
 845         diff -ur $(t)/$(distdir).old $(t)/$(distdir)
 846         -rm -rf $(t)
 847         @echo "========================"; \
 848         echo "$(distdir).tar.gz is ready for distribution"; \
 849         echo "========================"
 850
 851 WGET = wget
 852 WGETFLAGS = -C off
 853
 854 rel-check:
 855         tarz=/tmp/rel-check-tarz-$$$$; \
 856         md5_tmp=/tmp/rel-check-md5-$$$$; \
 857         set -e; \
 858         trap 'status=$$?; rm -f $$tarz $$md5_tmp; exit $$status' 0 1 2 3 15; \
 859         $(WGET) $(WGETFLAGS) -q --output-document=$$tarz $(url); \
 860         echo "$(md5)  -" > $$md5_tmp; \
 861         md5sum -c $$md5_tmp < $$tarz
 862
 863 rel-files = $(DIST_ARCHIVES)
 864
 865 gnulib-version = $$(cd $(gnulib_dir) && git describe)
 866
 867 announcement: NEWS ChangeLog $(rel-files)
 868         @./build-aux/announce-gen                                       \
 869             --release-type=$(RELEASE_TYPE)                              \
 870             --package=$(PACKAGE)                                        \
 871             --prev=$(PREV_VERSION)                                      \
 872             --curr=$(VERSION)                                           \
 873             --gpg-key-id=$(gpg_key_ID)                                  \
 874             --news=NEWS                                                 \
 875             --bootstrap-tools=autoconf,automake,bison,gnulib            \
 876             --gnulib-version=$(gnulib-version)                          \
 877             $(addprefix --url-dir=, $(url_dir_list))
 878
 879 ## ---------------- ##
 880 ## Updating files.  ##
 881 ## ---------------- ##
 882
 883 ftp-gnu = ftp://ftp.gnu.org/gnu
 884 www-gnu = http://www.gnu.org
 885
 886 # Use mv, if you don't have/want move-if-change.
 887 move_if_change ?= move-if-change
 888
 889 emit_upload_commands:
 890         @echo =====================================
 891         @echo =====================================
 892         @echo "$(srcdir)/build-aux/gnupload $(GNUPLOADFLAGS) \\"
 893         @echo "    --to $(gnu_rel_host):$(PACKAGE) \\"
 894         @echo "  $(rel-files)"
 895         @echo '# send the /tmp/announcement e-mail'
 896         @echo =====================================
 897         @echo =====================================
 898
 899 noteworthy = * Noteworthy changes in release ?.? (????-??-??) [?]
 900 define emit-commit-log
 901   printf '%s\n' 'post-release administrivia' '' \
 902     '* NEWS: Add header line for next release.' \
 903     '* .prev-version: Record previous version.' \
 904     '* cfg.mk (old_NEWS_hash): Auto-update.'
 905 endef
 906
 907 .PHONY: alpha beta major
 908 alpha beta major: $(local-check) writable-files
 909         test $@ = major                                         \
 910           && { echo $(VERSION) | grep -E '^[0-9]+(\.[0-9]+)+$$' \
 911                || { echo "invalid version string: $(VERSION)" 1>&2; exit 1;};}\
 912           || :
 913         $(MAKE) vc-dist
 914         $(MAKE) news-date-check
 915         $(MAKE) -s announcement RELEASE_TYPE=$@ > /tmp/announce-$(my_distdir)
 916         if test -d $(release_archive_dir); then                 \
 917           ln $(rel-files) $(release_archive_dir);               \
 918           chmod a-w $(rel-files);                               \
 919         fi
 920         $(MAKE) -s emit_upload_commands RELEASE_TYPE=$@
 921         echo $(VERSION) > $(prev_version_file)
 922         $(MAKE) update-NEWS-hash
 923         perl -pi -e '$$. == 3 and print "$(noteworthy)\n\n\n"' NEWS
 924         $(emit-commit-log) > .ci-msg
 925         $(VC) commit -F .ci-msg -a