1 /* Reading and parsing of makefiles for GNU Make.
2 Copyright (C) 1988-2012 Free Software Foundation, Inc.
3 This file is part of GNU Make.
5 GNU Make is free software; you can redistribute it and/or modify it under the
6 terms of the GNU General Public License as published by the Free Software
7 Foundation; either version 3 of the License, or (at your option) any later
10 GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
11 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12 A PARTICULAR PURPOSE. See the GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License along with
15 this program. If not, see <http://www.gnu.org/licenses/>. */
38 struct passwd
*getpwnam (char *name
);
41 #endif /* !WINDOWS32 */
43 /* A 'struct ebuffer' controls the origin of the makefile we are currently
49 char *buffer
; /* Start of the current line in the buffer. */
50 char *bufnext
; /* Start of the next line in the buffer. */
51 char *bufstart
; /* Start of the entire buffer. */
52 unsigned int size
; /* Malloc'd size of buffer. */
53 FILE *fp
; /* File, or NULL if this is an internal buffer. */
54 struct floc floc
; /* Info on the file in fp (if any). */
57 /* Track the modifiers we can have on variable assignments */
61 unsigned int assign_v
:1;
62 unsigned int define_v
:1;
63 unsigned int undefine_v
:1;
64 unsigned int export_v
:1;
65 unsigned int override_v
:1;
66 unsigned int private_v
:1;
69 /* Types of "words" that can be read in a makefile. */
72 w_bogus
, w_eol
, w_static
, w_variable
, w_colon
, w_dcolon
, w_semicolon
,
77 /* A 'struct conditionals' contains the information describing
78 all the active conditionals in a makefile.
80 The global variable 'conditionals' contains the conditionals
81 information for the current makefile. It is initialized from
82 the static structure 'toplevel_conditionals' and is later changed
83 to new structures for included makefiles. */
87 unsigned int if_cmds
; /* Depth of conditional nesting. */
88 unsigned int allocated
; /* Elts allocated in following arrays. */
89 char *ignoring
; /* Are we ignoring or interpreting?
90 0=interpreting, 1=not yet interpreted,
91 2=already interpreted */
92 char *seen_else
; /* Have we already seen an 'else'? */
95 static struct conditionals toplevel_conditionals
;
96 static struct conditionals
*conditionals
= &toplevel_conditionals
;
99 /* Default directories to search for include files in */
101 static const char *default_include_directories
[] =
103 #if defined(WINDOWS32) && !defined(INCLUDEDIR)
104 /* This completely up to the user when they install MSVC or other packages.
105 This is defined as a placeholder. */
106 # define INCLUDEDIR "."
111 "/usr/local/include",
117 /* List of directories to search for include files in */
119 static const char **include_directories
;
121 /* Maximum length of an element of the above. */
123 static unsigned int max_incl_len
;
125 /* The filename and pointer to line number of the
126 makefile currently being read in. */
128 const struct floc
*reading_file
= 0;
130 /* The chain of makefiles read by read_makefile. */
132 static struct dep
*read_makefiles
= 0;
134 static int eval_makefile (const char *filename
, int flags
);
135 static void eval (struct ebuffer
*buffer
, int flags
);
137 static long readline (struct ebuffer
*ebuf
);
138 static void do_undefine (char *name
, enum variable_origin origin
,
139 struct ebuffer
*ebuf
);
140 static struct variable
*do_define (char *name
, enum variable_origin origin
,
141 struct ebuffer
*ebuf
);
142 static int conditional_line (char *line
, int len
, const struct floc
*flocp
);
143 static void record_files (struct nameseq
*filenames
, const char *pattern
,
144 const char *pattern_percent
, char *depstr
,
145 unsigned int cmds_started
, char *commands
,
146 unsigned int commands_idx
, int two_colon
,
147 char prefix
, const struct floc
*flocp
);
148 static void record_target_var (struct nameseq
*filenames
, char *defn
,
149 enum variable_origin origin
,
150 struct vmodifiers
*vmod
,
151 const struct floc
*flocp
);
152 static enum make_word_type
get_next_mword (char *buffer
, char *delim
,
153 char **startp
, unsigned int *length
);
154 static void remove_comments (char *line
);
155 static char *find_char_unquote (char *string
, int stop1
, int stop2
,
156 int blank
, int ignorevars
);
157 static char *unescape_char (char *string
, int c
);
160 /* Compare a word, both length and contents.
161 P must point to the word to be tested, and WLEN must be the length.
163 #define word1eq(s) (wlen == CSTRLEN (s) && strneq (s, p, CSTRLEN (s)))
166 /* Read in all the makefiles and return the chain of their names. */
169 read_all_makefiles (const char **makefiles
)
171 unsigned int num_makefiles
= 0;
173 /* Create *_LIST variables, to hold the makefiles, targets, and variables
174 we will be reading. */
176 define_variable_cname ("MAKEFILE_LIST", "", o_file
, 0);
178 DB (DB_BASIC
, (_("Reading makefiles...\n")));
180 /* If there's a non-null variable MAKEFILES, its value is a list of
181 files to read first thing. But don't let it prevent reading the
182 default makefiles and don't let the default goal come from there. */
190 /* Turn off --warn-undefined-variables while we expand MAKEFILES. */
191 int save
= warn_undefined_variables_flag
;
192 warn_undefined_variables_flag
= 0;
194 value
= allocated_variable_expand ("$(MAKEFILES)");
196 warn_undefined_variables_flag
= save
;
199 /* Set NAME to the start of next token and LENGTH to its length.
200 MAKEFILES is updated for finding remaining tokens. */
203 while ((name
= find_next_token ((const char **)&p
, &length
)) != 0)
207 eval_makefile (name
, RM_NO_DEFAULT_GOAL
|RM_INCLUDED
|RM_DONTCARE
);
213 /* Read makefiles specified with -f switches. */
216 while (*makefiles
!= 0)
218 struct dep
*tail
= read_makefiles
;
219 register struct dep
*d
;
221 if (! eval_makefile (*makefiles
, 0))
222 perror_with_name ("", *makefiles
);
224 /* Find the right element of read_makefiles. */
226 while (d
->next
!= tail
)
229 /* Use the storage read_makefile allocates. */
230 *makefiles
= dep_name (d
);
235 /* If there were no -f switches, try the default names. */
237 if (num_makefiles
== 0)
239 static char *default_makefiles
[] =
241 /* all lower case since readdir() (the vms version) 'lowercasifies' */
242 { "makefile.vms", "gnumakefile.", "makefile.", 0 };
245 { "GNUmakefile", "Makefile", "SMakefile", 0 };
246 #else /* !Amiga && !VMS */
247 { "GNUmakefile", "makefile", "Makefile", 0 };
250 register char **p
= default_makefiles
;
251 while (*p
!= 0 && !file_exists_p (*p
))
256 if (! eval_makefile (*p
, 0))
257 perror_with_name ("", *p
);
261 /* No default makefile was found. Add the default makefiles to the
262 'read_makefiles' chain so they will be updated if possible. */
263 struct dep
*tail
= read_makefiles
;
264 /* Add them to the tail, after any MAKEFILES variable makefiles. */
265 while (tail
!= 0 && tail
->next
!= 0)
267 for (p
= default_makefiles
; *p
!= 0; ++p
)
269 struct dep
*d
= alloc_dep ();
270 d
->file
= enter_file (strcache_add (*p
));
272 /* Tell update_goal_chain to bail out as soon as this file is
273 made, and main not to die if we can't make this file. */
274 d
->changed
= RM_DONTCARE
;
286 return read_makefiles
;
289 /* Install a new conditional and return the previous one. */
291 static struct conditionals
*
292 install_conditionals (struct conditionals
*new)
294 struct conditionals
*save
= conditionals
;
296 memset (new, '\0', sizeof (*new));
302 /* Free the current conditionals and reinstate a saved one. */
305 restore_conditionals (struct conditionals
*saved
)
307 /* Free any space allocated by conditional_line. */
308 if (conditionals
->ignoring
)
309 free (conditionals
->ignoring
);
310 if (conditionals
->seen_else
)
311 free (conditionals
->seen_else
);
314 conditionals
= saved
;
318 eval_makefile (const char *filename
, int flags
)
322 const struct floc
*curfile
;
326 ebuf
.floc
.filenm
= filename
; /* Use the original file name. */
327 ebuf
.floc
.lineno
= 1;
329 if (ISDB (DB_VERBOSE
))
331 printf (_("Reading makefile '%s'"), filename
);
332 if (flags
& RM_NO_DEFAULT_GOAL
)
333 printf (_(" (no default goal)"));
334 if (flags
& RM_INCLUDED
)
335 printf (_(" (search path)"));
336 if (flags
& RM_DONTCARE
)
337 printf (_(" (don't care)"));
338 if (flags
& RM_NO_TILDE
)
339 printf (_(" (no ~ expansion)"));
343 /* First, get a stream to read. */
345 /* Expand ~ in FILENAME unless it came from 'include',
346 in which case it was already done. */
347 if (!(flags
& RM_NO_TILDE
) && filename
[0] == '~')
349 expanded
= tilde_expand (filename
);
354 ebuf
.fp
= fopen (filename
, "r");
355 /* Save the error code so we print the right message later. */
356 makefile_errno
= errno
;
358 /* If the makefile wasn't found and it's either a makefile from
359 the 'MAKEFILES' variable or an included makefile,
360 search the included makefile search path for this makefile. */
361 if (ebuf
.fp
== 0 && (flags
& RM_INCLUDED
) && *filename
!= '/')
364 for (i
= 0; include_directories
[i
] != 0; ++i
)
366 const char *included
= concat (3, include_directories
[i
],
368 ebuf
.fp
= fopen (included
, "r");
377 /* Now we have the final name for this makefile. Enter it into
379 filename
= strcache_add (filename
);
381 /* Add FILENAME to the chain of read makefiles. */
383 deps
->next
= read_makefiles
;
384 read_makefiles
= deps
;
385 deps
->file
= lookup_file (filename
);
387 deps
->file
= enter_file (filename
);
388 filename
= deps
->file
->name
;
389 deps
->changed
= flags
;
390 if (flags
& RM_DONTCARE
)
396 /* If the makefile can't be found at all, give up entirely. */
400 /* If we did some searching, errno has the error from the last
401 attempt, rather from FILENAME itself. Restore it in case the
402 caller wants to use it in a message. */
403 errno
= makefile_errno
;
407 /* Set close-on-exec to avoid leaking the makefile to children, such as
410 CLOSE_ON_EXEC (fileno (ebuf
.fp
));
413 /* Add this makefile to the list. */
414 do_variable_definition (&ebuf
.floc
, "MAKEFILE_LIST", filename
, o_file
,
417 /* Evaluate the makefile */
420 ebuf
.buffer
= ebuf
.bufnext
= ebuf
.bufstart
= xmalloc (ebuf
.size
);
422 curfile
= reading_file
;
423 reading_file
= &ebuf
.floc
;
425 eval (&ebuf
, !(flags
& RM_NO_DEFAULT_GOAL
));
427 reading_file
= curfile
;
431 free (ebuf
.bufstart
);
438 eval_buffer (char *buffer
)
441 struct conditionals
*saved
;
442 struct conditionals
new;
443 const struct floc
*curfile
;
445 /* Evaluate the buffer */
447 ebuf
.size
= strlen (buffer
);
448 ebuf
.buffer
= ebuf
.bufnext
= ebuf
.bufstart
= buffer
;
452 ebuf
.floc
= *reading_file
;
454 ebuf
.floc
.filenm
= NULL
;
456 curfile
= reading_file
;
457 reading_file
= &ebuf
.floc
;
459 saved
= install_conditionals (&new);
463 restore_conditionals (saved
);
465 reading_file
= curfile
;
470 /* Check LINE to see if it's a variable assignment or undefine.
472 It might use one of the modifiers "export", "override", "private", or it
473 might be one of the conditional tokens like "ifdef", "include", etc.
475 If it's not a variable assignment or undefine, VMOD.V_ASSIGN is 0.
478 Returns a pointer to the first non-modifier character, and sets VMOD
479 based on the modifiers found if any, plus V_ASSIGN is 1.
482 parse_var_assignment (const char *line
, struct vmodifiers
*vmod
)
485 memset (vmod
, '\0', sizeof (*vmod
));
487 /* Find the start of the next token. If there isn't one we're done. */
488 line
= next_token (line
);
499 p2
= parse_variable_definition (p
, &v
);
501 /* If this is a variable assignment, we're done. */
505 /* It's not a variable; see if it's a modifier. */
506 p2
= end_of_token (p
);
509 if (word1eq ("export"))
511 else if (word1eq ("override"))
512 vmod
->override_v
= 1;
513 else if (word1eq ("private"))
515 else if (word1eq ("define"))
517 /* We can't have modifiers after 'define' */
522 else if (word1eq ("undefine"))
524 /* We can't have modifiers after 'undefine' */
525 vmod
->undefine_v
= 1;
530 /* Not a variable or modifier: this is not a variable assignment. */
533 /* It was a modifier. Try the next word. */
539 /* Found a variable assignment or undefine. */
545 /* Read file FILENAME as a makefile and add its contents to the data base.
547 SET_DEFAULT is true if we are allowed to set the default goal. */
550 eval (struct ebuffer
*ebuf
, int set_default
)
553 unsigned int collapsed_length
= 0;
554 unsigned int commands_len
= 200;
556 unsigned int commands_idx
= 0;
557 unsigned int cmds_started
, tgts_started
;
558 int ignoring
= 0, in_ignored_define
= 0;
559 int no_targets
= 0; /* Set when reading a rule without targets. */
560 struct nameseq
*filenames
= 0;
564 char prefix
= cmd_prefix
;
565 const char *pattern
= 0;
566 const char *pattern_percent
;
570 #define record_waiting_files() \
573 if (filenames != 0) \
575 fi.lineno = tgts_started; \
576 record_files (filenames, pattern, pattern_percent, depstr, \
577 cmds_started, commands, commands_idx, two_colon, \
587 cmds_started
= tgts_started
= 1;
589 fstart
= &ebuf
->floc
;
590 fi
.filenm
= ebuf
->floc
.filenm
;
592 /* Loop over lines in the file.
593 The strategy is to accumulate target names in FILENAMES, dependencies
594 in DEPS and commands in COMMANDS. These are used to define a rule
595 when the start of the next rule (or eof) is encountered.
597 When you see a "continue" in the loop below, that means we are moving on
598 to the next line _without_ ending any rule that we happen to be working
599 with at the moment. If you see a "goto rule_complete", then the
600 statement we just parsed also finishes the previous rule. */
602 commands
= xmalloc (200);
606 unsigned int linelen
;
611 struct vmodifiers vmod
;
613 /* At the top of this loop, we are starting a brand new line. */
614 /* Grab the next line to be evaluated */
615 ebuf
->floc
.lineno
+= nlines
;
616 nlines
= readline (ebuf
);
618 /* If there is nothing left to eval, we're done. */
624 /* If this is the first line, check for a UTF-8 BOM and skip it. */
625 if (ebuf
->floc
.lineno
== 1 && line
[0] == (char)0xEF
626 && line
[1] == (char)0xBB && line
[2] == (char)0xBF)
631 if (ebuf
->floc
.filenm
)
632 printf (_("Skipping UTF-8 BOM in makefile '%s'\n"),
635 printf (_("Skipping UTF-8 BOM in makefile buffer\n"));
639 /* If this line is empty, skip it. */
643 linelen
= strlen (line
);
645 /* Check for a shell command line first.
646 If it is not one, we can stop treating cmd_prefix specially. */
647 if (line
[0] == cmd_prefix
)
650 /* Ignore the commands in a rule with no targets. */
653 /* If there is no preceding rule line, don't treat this line
654 as a command, even though it begins with a recipe prefix.
655 SunOS 4 make appears to behave this way. */
660 /* Yep, this is a shell command, and we don't care. */
663 if (commands_idx
== 0)
664 cmds_started
= ebuf
->floc
.lineno
;
666 /* Append this command line to the line being accumulated.
667 Skip the initial command prefix character. */
668 if (linelen
+ commands_idx
> commands_len
)
670 commands_len
= (linelen
+ commands_idx
) * 2;
671 commands
= xrealloc (commands
, commands_len
);
673 memcpy (&commands
[commands_idx
], line
+ 1, linelen
- 1);
674 commands_idx
+= linelen
- 1;
675 commands
[commands_idx
++] = '\n';
680 /* This line is not a shell command line. Don't worry about whitespace.
681 Get more space if we need it; we don't need to preserve the current
682 contents of the buffer. */
684 if (collapsed_length
< linelen
+1)
686 collapsed_length
= linelen
+1;
689 /* Don't need xrealloc: we don't need to preserve the content. */
690 collapsed
= xmalloc (collapsed_length
);
692 strcpy (collapsed
, line
);
693 /* Collapse continuation lines. */
694 collapse_continuations (collapsed
);
695 remove_comments (collapsed
);
697 /* Get rid if starting space (including formfeed, vtab, etc.) */
699 while (isspace ((unsigned char)*p
))
702 /* See if this is a variable assignment. We need to do this early, to
703 allow variables with names like 'ifdef', 'export', 'private', etc. */
704 p
= parse_var_assignment(p
, &vmod
);
708 enum variable_origin origin
= vmod
.override_v
? o_override
: o_file
;
710 /* If we're ignoring then we're done now. */
714 in_ignored_define
= 1;
720 do_undefine (p
, origin
, ebuf
);
722 /* This line has been dealt with. */
725 else if (vmod
.define_v
)
726 v
= do_define (p
, origin
, ebuf
);
728 v
= try_variable_definition (fstart
, p
, origin
, 0);
733 v
->export
= v_export
;
737 /* This line has been dealt with. */
741 /* If this line is completely empty, ignore it. */
745 p2
= end_of_token (p
);
747 p2
= next_token (p2
);
749 /* If we're in an ignored define, skip this line (but maybe get out). */
750 if (in_ignored_define
)
752 /* See if this is an endef line (plus optional comment). */
753 if (word1eq ("endef") && (*p2
== '\0' || *p2
== '#'))
754 in_ignored_define
= 0;
759 /* Check for conditional state changes. */
761 int i
= conditional_line (p
, wlen
, fstart
);
765 fatal (fstart
, _("invalid syntax in conditional"));
772 /* Nothing to see here... move along. */
776 /* Manage the "export" keyword used outside of variable assignment
777 as well as "unexport". */
778 if (word1eq ("export") || word1eq ("unexport"))
780 int exporting
= *p
== 'u' ? 0 : 1;
782 /* (un)export by itself causes everything to be (un)exported. */
784 export_all_variables
= exporting
;
791 /* Expand the line so we can use indirect and constructed
792 variable names in an (un)export command. */
793 cp
= ap
= allocated_variable_expand (p2
);
795 for (p
= find_next_token (&cp
, &l
); p
!= 0;
796 p
= find_next_token (&cp
, &l
))
798 struct variable
*v
= lookup_variable (p
, l
);
800 v
= define_variable_global (p
, l
, "", o_file
, 0, fstart
);
801 v
->export
= exporting
? v_export
: v_noexport
;
809 /* Handle the special syntax for vpath. */
810 if (word1eq ("vpath"))
815 cp
= variable_expand (p2
);
816 p
= find_next_token (&cp
, &l
);
819 vpat
= xstrndup (p
, l
);
820 p
= find_next_token (&cp
, &l
);
821 /* No searchpath means remove all previous
822 selective VPATH's with the same pattern. */
825 /* No pattern means remove all previous selective VPATH's. */
827 construct_vpath_list (vpat
, p
);
834 /* Handle include and variants. */
835 if (word1eq ("include") || word1eq ("-include") || word1eq ("sinclude"))
837 /* We have found an 'include' line specifying a nested
838 makefile to be read at this point. */
839 struct conditionals
*save
;
840 struct conditionals new_conditionals
;
841 struct nameseq
*files
;
842 /* "-include" (vs "include") says no error if the file does not
843 exist. "sinclude" is an alias for this from SGI. */
844 int noerror
= (p
[0] != 'i');
846 p
= allocated_variable_expand (p2
);
848 /* If no filenames, it's a no-op. */
855 /* Parse the list of file names. Don't expand archive references! */
857 files
= PARSE_FILE_SEQ (&p2
, struct nameseq
, '\0', NULL
,
861 /* Save the state of conditionals and start
862 the included makefile with a clean slate. */
863 save
= install_conditionals (&new_conditionals
);
865 /* Record the rules that are waiting so they will determine
866 the default goal before those in the included makefile. */
867 record_waiting_files ();
869 /* Read each included makefile. */
872 struct nameseq
*next
= files
->next
;
873 const char *name
= files
->name
;
879 r
= eval_makefile (name
,
880 (RM_INCLUDED
| RM_NO_TILDE
881 | (noerror
? RM_DONTCARE
: 0)
882 | (set_default
? 0 : RM_NO_DEFAULT_GOAL
)));
884 error (fstart
, "%s: %s", name
, strerror (errno
));
887 /* Restore conditional state. */
888 restore_conditionals (save
);
893 /* This line starts with a tab but was not caught above because there
894 was no preceding target, and the line might have been usable as a
895 variable definition. But now we know it is definitely lossage. */
896 if (line
[0] == cmd_prefix
)
897 fatal(fstart
, _("recipe commences before first target"));
899 /* This line describes some target files. This is complicated by
900 the existence of target-specific variables, because we can't
901 expand the entire line until we know if we have one or not. So
902 we expand the line word by word until we find the first ':',
903 then check to see if it's a target-specific variable.
905 In this algorithm, 'lb_next' will point to the beginning of the
906 unexpanded parts of the input buffer, while 'p2' points to the
907 parts of the expanded buffer we haven't searched yet. */
910 enum make_word_type wtype
;
911 char *cmdleft
, *semip
, *lb_next
;
912 unsigned int plen
= 0;
914 const char *end
, *beg
; /* Helpers for whitespace stripping. */
916 /* Record the previous rule. */
918 record_waiting_files ();
919 tgts_started
= fstart
->lineno
;
921 /* Search the line for an unquoted ; that is not after an
923 cmdleft
= find_char_unquote (line
, ';', '#', 0, 1);
924 if (cmdleft
!= 0 && *cmdleft
== '#')
926 /* We found a comment before a semicolon. */
930 else if (cmdleft
!= 0)
931 /* Found one. Cut the line short there before expanding it. */
935 collapse_continuations (line
);
937 /* We can't expand the entire line, since if it's a per-target
938 variable we don't want to expand it. So, walk from the
939 beginning, expanding as we go, and looking for "interesting"
940 chars. The first word is always expandable. */
941 wtype
= get_next_mword(line
, NULL
, &lb_next
, &wlen
);
946 fatal(fstart
, _("missing rule before recipe"));
947 /* This line contained something but turned out to be nothing
948 but whitespace (a comment?). */
953 /* We accept and ignore rules without targets for
954 compatibility with SunOS 4 make. */
962 p2
= variable_expand_string(NULL
, lb_next
, wlen
);
969 /* Look for a semicolon in the expanded line. */
970 cmdleft
= find_char_unquote (p2
, ';', 0, 0, 0);
974 unsigned long p2_off
= p2
- variable_buffer
;
975 unsigned long cmd_off
= cmdleft
- variable_buffer
;
976 char *pend
= p2
+ strlen(p2
);
978 /* Append any remnants of lb, then cut the line short
982 /* One school of thought says that you shouldn't expand
983 here, but merely copy, since now you're beyond a ";"
984 and into a command script. However, the old parser
985 expanded the whole line, so we continue that for
986 backwards-compatiblity. Also, it wouldn't be
987 entirely consistent, since we do an unconditional
988 expand below once we know we don't have a
989 target-specific variable. */
990 (void)variable_expand_string(pend
, lb_next
, (long)-1);
991 lb_next
+= strlen(lb_next
);
992 p2
= variable_buffer
+ p2_off
;
993 cmdleft
= variable_buffer
+ cmd_off
+ 1;
997 colonp
= find_char_unquote(p2
, ':', 0, 0, 0);
998 #ifdef HAVE_DOS_PATHS
999 /* The drive spec brain-damage strikes again... */
1000 /* Note that the only separators of targets in this context
1001 are whitespace and a left paren. If others are possible,
1002 they should be added to the string in the call to index. */
1003 while (colonp
&& (colonp
[1] == '/' || colonp
[1] == '\\') &&
1004 colonp
> p2
&& isalpha ((unsigned char)colonp
[-1]) &&
1005 (colonp
== p2
+ 1 || strchr (" \t(", colonp
[-2]) != 0))
1006 colonp
= find_char_unquote(colonp
+ 1, ':', 0, 0, 0);
1011 wtype
= get_next_mword(lb_next
, NULL
, &lb_next
, &wlen
);
1017 p2
= variable_expand_string(p2
, lb_next
, wlen
);
1018 /* We don't need to worry about cmdleft here, because if it was
1019 found in the variable_buffer the entire buffer has already
1020 been expanded... we'll never get here. */
1023 p2
= next_token (variable_buffer
);
1025 /* If the word we're looking at is EOL, see if there's _anything_
1026 on the line. If not, a variable expanded to nothing, so ignore
1027 it. If so, we can't parse this line so punt. */
1031 /* There's no need to be ivory-tower about this: check for
1032 one of the most common bugs found in makefiles... */
1033 fatal (fstart
, _("missing separator%s"),
1034 (cmd_prefix
== '\t' && !strneq (line
, " ", 8))
1035 ? "" : _(" (did you mean TAB instead of 8 spaces?)"));
1039 /* Make the colon the end-of-string so we know where to stop
1040 looking for targets. Start there again once we're done. */
1042 filenames
= PARSE_FILE_SEQ (&p2
, struct nameseq
, '\0', NULL
, 0);
1048 /* We accept and ignore rules without targets for
1049 compatibility with SunOS 4 make. */
1053 /* This should never be possible; we handled it above. */
1054 assert (*p2
!= '\0');
1057 /* Is this a one-colon or two-colon entry? */
1058 two_colon
= *p2
== ':';
1062 /* Test to see if it's a target-specific variable. Copy the rest
1063 of the buffer over, possibly temporarily (we'll expand it later
1064 if it's not a target-specific variable). PLEN saves the length
1065 of the unparsed section of p2, for later. */
1066 if (*lb_next
!= '\0')
1068 unsigned int l
= p2
- variable_buffer
;
1070 variable_buffer_output (p2
+plen
, lb_next
, strlen (lb_next
)+1);
1071 p2
= variable_buffer
+ l
;
1074 p2
= parse_var_assignment (p2
, &vmod
);
1077 /* If there was a semicolon found, add it back, plus anything
1081 unsigned int l
= p
- variable_buffer
;
1083 collapse_continuations (semip
);
1084 variable_buffer_output (p2
+ strlen (p2
),
1085 semip
, strlen (semip
)+1);
1086 p
= variable_buffer
+ l
;
1088 record_target_var (filenames
, p2
,
1089 vmod
.override_v
? o_override
: o_file
,
1095 /* This is a normal target, _not_ a target-specific variable.
1096 Unquote any = in the dependency list. */
1097 find_char_unquote (lb_next
, '=', 0, 0, 0);
1099 /* Remember the command prefix for this target. */
1100 prefix
= cmd_prefix
;
1102 /* We have some targets, so don't ignore the following commands. */
1105 /* Expand the dependencies, etc. */
1106 if (*lb_next
!= '\0')
1108 unsigned int l
= p2
- variable_buffer
;
1109 (void) variable_expand_string (p2
+ plen
, lb_next
, (long)-1);
1110 p2
= variable_buffer
+ l
;
1112 /* Look for a semicolon in the expanded line. */
1115 cmdleft
= find_char_unquote (p2
, ';', 0, 0, 0);
1117 *(cmdleft
++) = '\0';
1121 /* Is this a static pattern rule: 'target: %targ: %dep; ...'? */
1122 p
= strchr (p2
, ':');
1123 while (p
!= 0 && p
[-1] == '\\')
1127 while (*q
-- == '\\')
1128 backslash
= !backslash
;
1130 p
= strchr (p
+ 1, ':');
1135 /* Here, the situation is quite complicated. Let's have a look
1136 at a couple of targets:
1144 The rule is that it's only a target, if there are TWO :'s
1145 OR a space around the :.
1147 if (p
&& !(isspace ((unsigned char)p
[1]) || !p
[1]
1148 || isspace ((unsigned char)p
[-1])))
1151 #ifdef HAVE_DOS_PATHS
1156 /* For DOS-style paths, skip a "C:\..." or a "C:/..." */
1157 if (p
!= 0 && (p
[1] == '\\' || p
[1] == '/') &&
1158 isalpha ((unsigned char)p
[-1]) &&
1159 (p
== p2
+ 1 || strchr (" \t:(", p
[-2]) != 0)) {
1160 p
= strchr (p
+ 1, ':');
1163 } while (check_again
);
1168 struct nameseq
*target
;
1169 target
= PARSE_FILE_SEQ (&p2
, struct nameseq
, ':', NULL
,
1173 fatal (fstart
, _("missing target pattern"));
1174 else if (target
->next
!= 0)
1175 fatal (fstart
, _("multiple target patterns"));
1176 pattern_percent
= find_percent_cached (&target
->name
);
1177 pattern
= target
->name
;
1178 if (pattern_percent
== 0)
1179 fatal (fstart
, _("target pattern contains no '%%'"));
1185 /* Strip leading and trailing whitespaces. */
1187 end
= beg
+ strlen (beg
) - 1;
1188 strip_whitespace (&beg
, &end
);
1190 /* Put all the prerequisites here; they'll be parsed later. */
1191 if (beg
<= end
&& *beg
!= '\0')
1192 depstr
= xstrndup (beg
, end
- beg
+ 1);
1199 /* Semicolon means rest of line is a command. */
1200 unsigned int l
= strlen (cmdleft
);
1202 cmds_started
= fstart
->lineno
;
1204 /* Add this command line to the buffer. */
1205 if (l
+ 2 > commands_len
)
1207 commands_len
= (l
+ 2) * 2;
1208 commands
= xrealloc (commands
, commands_len
);
1210 memcpy (commands
, cmdleft
, l
);
1212 commands
[commands_idx
++] = '\n';
1215 /* Determine if this target should be made default. We used to do
1216 this in record_files() but because of the delayed target recording
1217 and because preprocessor directives are legal in target's commands
1218 it is too late. Consider this fragment for example:
1222 ifeq ($(.DEFAULT_GOAL),foo)
1226 Because the target is not recorded until after ifeq directive is
1227 evaluated the .DEFAULT_GOAL does not contain foo yet as one
1228 would expect. Because of this we have to move the logic here. */
1230 if (set_default
&& default_goal_var
->value
[0] == '\0')
1234 struct nameseq
*t
= filenames
;
1236 for (; t
!= 0; t
= t
->next
)
1241 /* We have nothing to do if this is an implicit rule. */
1242 if (strchr (name
, '%') != 0)
1245 /* See if this target's name does not start with a '.',
1246 unless it contains a slash. */
1247 if (*name
== '.' && strchr (name
, '/') == 0
1248 #ifdef HAVE_DOS_PATHS
1249 && strchr (name
, '\\') == 0
1255 /* If this file is a suffix, don't let it be
1256 the default goal file. */
1257 for (d
= suffix_file
->deps
; d
!= 0; d
= d
->next
)
1259 register struct dep
*d2
;
1260 if (*dep_name (d
) != '.' && streq (name
, dep_name (d
)))
1265 for (d2
= suffix_file
->deps
; d2
!= 0; d2
= d2
->next
)
1267 unsigned int l
= strlen (dep_name (d2
));
1268 if (!strneq (name
, dep_name (d2
), l
))
1270 if (streq (name
+ l
, dep_name (d
)))
1283 define_variable_global (".DEFAULT_GOAL", 13, t
->name
,
1293 /* We get here except in the case that we just read a rule line.
1294 Record now the last rule we read, so following spurious
1295 commands are properly diagnosed. */
1297 record_waiting_files ();
1302 if (conditionals
->if_cmds
)
1303 fatal (fstart
, _("missing 'endif'"));
1305 /* At eof, record the last rule. */
1306 record_waiting_files ();
1314 /* Remove comments from LINE.
1315 This is done by copying the text at LINE onto itself. */
1318 remove_comments (char *line
)
1322 comment
= find_char_unquote (line
, '#', 0, 0, 0);
1325 /* Cut off the line at the #. */
1329 /* Execute a 'undefine' directive.
1330 The undefine line has already been read, and NAME is the name of
1331 the variable to be undefined. */
1334 do_undefine (char *name
, enum variable_origin origin
, struct ebuffer
*ebuf
)
1338 /* Expand the variable name and find the beginning (NAME) and end. */
1339 var
= allocated_variable_expand (name
);
1340 name
= next_token (var
);
1342 fatal (&ebuf
->floc
, _("empty variable name"));
1343 p
= name
+ strlen (name
) - 1;
1344 while (p
> name
&& isblank ((unsigned char)*p
))
1348 undefine_variable_global (name
, p
- name
+ 1, origin
);
1352 /* Execute a 'define' directive.
1353 The first line has already been read, and NAME is the name of
1354 the variable to be defined. The following lines remain to be read. */
1356 static struct variable
*
1357 do_define (char *name
, enum variable_origin origin
, struct ebuffer
*ebuf
)
1360 struct variable var
;
1361 struct floc defstart
;
1363 unsigned int length
= 100;
1364 char *definition
= xmalloc (length
);
1365 unsigned int idx
= 0;
1368 defstart
= ebuf
->floc
;
1370 p
= parse_variable_definition (name
, &var
);
1372 /* No assignment token, so assume recursive. */
1373 var
.flavor
= f_recursive
;
1376 if (var
.value
[0] != '\0')
1377 error (&defstart
, _("extraneous text after 'define' directive"));
1379 /* Chop the string before the assignment token to get the name. */
1380 var
.name
[var
.length
] = '\0';
1383 /* Expand the variable name and find the beginning (NAME) and end. */
1384 n
= allocated_variable_expand (name
);
1385 name
= next_token (n
);
1386 if (name
[0] == '\0')
1387 fatal (&defstart
, _("empty variable name"));
1388 p
= name
+ strlen (name
) - 1;
1389 while (p
> name
&& isblank ((unsigned char)*p
))
1393 /* Now read the value of the variable. */
1398 long nlines
= readline (ebuf
);
1400 /* If there is nothing left to be eval'd, there's no 'endef'!! */
1402 fatal (&defstart
, _("missing 'endef', unterminated 'define'"));
1404 ebuf
->floc
.lineno
+= nlines
;
1405 line
= ebuf
->buffer
;
1407 collapse_continuations (line
);
1409 /* If the line doesn't begin with a tab, test to see if it introduces
1410 another define, or ends one. Stop if we find an 'endef' */
1411 if (line
[0] != cmd_prefix
)
1413 p
= next_token (line
);
1416 /* If this is another 'define', increment the level count. */
1417 if ((len
== 6 || (len
> 6 && isblank ((unsigned char)p
[6])))
1418 && strneq (p
, "define", 6))
1421 /* If this is an 'endef', decrement the count. If it's now 0,
1422 we've found the last one. */
1423 else if ((len
== 5 || (len
> 5 && isblank ((unsigned char)p
[5])))
1424 && strneq (p
, "endef", 5))
1427 remove_comments (p
);
1428 if (*(next_token (p
)) != '\0')
1430 _("extraneous text after 'endef' directive"));
1437 /* Add this line to the variable definition. */
1438 len
= strlen (line
);
1439 if (idx
+ len
+ 1 > length
)
1441 length
= (idx
+ len
) * 2;
1442 definition
= xrealloc (definition
, length
+ 1);
1445 memcpy (&definition
[idx
], line
, len
);
1447 /* Separate lines with a newline. */
1448 definition
[idx
++] = '\n';
1451 /* We've got what we need; define the variable. */
1453 definition
[0] = '\0';
1455 definition
[idx
- 1] = '\0';
1457 v
= do_variable_definition (&defstart
, name
,
1458 definition
, origin
, var
.flavor
, 0);
1464 /* Interpret conditional commands "ifdef", "ifndef", "ifeq",
1465 "ifneq", "else" and "endif".
1466 LINE is the input line, with the command as its first word.
1468 FILENAME and LINENO are the filename and line number in the
1469 current makefile. They are used for error messages.
1471 Value is -2 if the line is not a conditional at all,
1472 -1 if the line is an invalid conditional,
1473 0 if following text should be interpreted,
1474 1 if following text should be ignored. */
1477 conditional_line (char *line
, int len
, const struct floc
*flocp
)
1480 enum { c_ifdef
, c_ifndef
, c_ifeq
, c_ifneq
, c_else
, c_endif
} cmdtype
;
1484 /* Compare a word, both length and contents. */
1485 #define word1eq(s) (len == CSTRLEN (s) && strneq (s, line, CSTRLEN (s)))
1486 #define chkword(s, t) if (word1eq (s)) { cmdtype = (t); cmdname = (s); }
1488 /* Make sure this line is a conditional. */
1489 chkword ("ifdef", c_ifdef
)
1490 else chkword ("ifndef", c_ifndef
)
1491 else chkword ("ifeq", c_ifeq
)
1492 else chkword ("ifneq", c_ifneq
)
1493 else chkword ("else", c_else
)
1494 else chkword ("endif", c_endif
)
1498 /* Found one: skip past it and any whitespace after it. */
1499 line
= next_token (line
+ len
);
1501 #define EXTRANEOUS() error (flocp, _("Extraneous text after '%s' directive"), cmdname)
1503 /* An 'endif' cannot contain extra text, and reduces the if-depth by 1 */
1504 if (cmdtype
== c_endif
)
1509 if (!conditionals
->if_cmds
)
1510 fatal (flocp
, _("extraneous '%s'"), cmdname
);
1512 --conditionals
->if_cmds
;
1517 /* An 'else' statement can either be simple, or it can have another
1518 conditional after it. */
1519 if (cmdtype
== c_else
)
1523 if (!conditionals
->if_cmds
)
1524 fatal (flocp
, _("extraneous '%s'"), cmdname
);
1526 o
= conditionals
->if_cmds
- 1;
1528 if (conditionals
->seen_else
[o
])
1529 fatal (flocp
, _("only one 'else' per conditional"));
1531 /* Change the state of ignorance. */
1532 switch (conditionals
->ignoring
[o
])
1535 /* We've just been interpreting. Never do it again. */
1536 conditionals
->ignoring
[o
] = 2;
1539 /* We've never interpreted yet. Maybe this time! */
1540 conditionals
->ignoring
[o
] = 0;
1544 /* It's a simple 'else'. */
1547 conditionals
->seen_else
[o
] = 1;
1551 /* The 'else' has extra text. That text must be another conditional
1552 and cannot be an 'else' or 'endif'. */
1554 /* Find the length of the next word. */
1555 for (p
= line
+1; *p
!= '\0' && !isspace ((unsigned char)*p
); ++p
)
1559 /* If it's 'else' or 'endif' or an illegal conditional, fail. */
1560 if (word1eq ("else") || word1eq ("endif")
1561 || conditional_line (line
, len
, flocp
) < 0)
1565 /* conditional_line() created a new level of conditional.
1566 Raise it back to this level. */
1567 if (conditionals
->ignoring
[o
] < 2)
1568 conditionals
->ignoring
[o
] = conditionals
->ignoring
[o
+1];
1569 --conditionals
->if_cmds
;
1575 if (conditionals
->allocated
== 0)
1577 conditionals
->allocated
= 5;
1578 conditionals
->ignoring
= xmalloc (conditionals
->allocated
);
1579 conditionals
->seen_else
= xmalloc (conditionals
->allocated
);
1582 o
= conditionals
->if_cmds
++;
1583 if (conditionals
->if_cmds
> conditionals
->allocated
)
1585 conditionals
->allocated
+= 5;
1586 conditionals
->ignoring
= xrealloc (conditionals
->ignoring
,
1587 conditionals
->allocated
);
1588 conditionals
->seen_else
= xrealloc (conditionals
->seen_else
,
1589 conditionals
->allocated
);
1592 /* Record that we have seen an 'if...' but no 'else' so far. */
1593 conditionals
->seen_else
[o
] = 0;
1595 /* Search through the stack to see if we're already ignoring. */
1596 for (i
= 0; i
< o
; ++i
)
1597 if (conditionals
->ignoring
[i
])
1599 /* We are already ignoring, so just push a level to match the next
1600 "else" or "endif", and keep ignoring. We don't want to expand
1601 variables in the condition. */
1602 conditionals
->ignoring
[o
] = 1;
1606 if (cmdtype
== c_ifdef
|| cmdtype
== c_ifndef
)
1612 /* Expand the thing we're looking up, so we can use indirect and
1613 constructed variable names. */
1614 var
= allocated_variable_expand (line
);
1616 /* Make sure there's only one variable name to test. */
1617 p
= end_of_token (var
);
1624 v
= lookup_variable (var
, i
);
1626 conditionals
->ignoring
[o
] =
1627 ((v
!= 0 && *v
->value
!= '\0') == (cmdtype
== c_ifndef
));
1633 /* "ifeq" or "ifneq". */
1636 char termin
= *line
== '(' ? ',' : *line
;
1638 if (termin
!= ',' && termin
!= '"' && termin
!= '\'')
1642 /* Find the end of the first string. */
1646 for (; *line
!= '\0'; ++line
)
1649 else if (*line
== ')')
1651 else if (*line
== ',' && count
<= 0)
1655 while (*line
!= '\0' && *line
!= termin
)
1663 /* Strip blanks after the first string. */
1665 while (isblank ((unsigned char)p
[-1]))
1672 s2
= variable_expand (s1
);
1673 /* We must allocate a new copy of the expanded string because
1674 variable_expand re-uses the same buffer. */
1676 s1
= alloca (l
+ 1);
1677 memcpy (s1
, s2
, l
+ 1);
1680 /* Find the start of the second string. */
1681 line
= next_token (line
);
1683 termin
= termin
== ',' ? ')' : *line
;
1684 if (termin
!= ')' && termin
!= '"' && termin
!= '\'')
1687 /* Find the end of the second string. */
1691 s2
= next_token (line
);
1692 for (line
= s2
; *line
!= '\0'; ++line
)
1696 else if (*line
== ')')
1709 while (*line
!= '\0' && *line
!= termin
)
1717 line
= next_token (++line
);
1721 s2
= variable_expand (s2
);
1722 conditionals
->ignoring
[o
] = (streq (s1
, s2
) == (cmdtype
== c_ifneq
));
1726 /* Search through the stack to see if we're ignoring. */
1727 for (i
= 0; i
< conditionals
->if_cmds
; ++i
)
1728 if (conditionals
->ignoring
[i
])
1734 /* Record target-specific variable values for files FILENAMES.
1735 TWO_COLON is nonzero if a double colon was used.
1737 The links of FILENAMES are freed, and so are any names in it
1738 that are not incorporated into other data structures.
1740 If the target is a pattern, add the variable to the pattern-specific
1741 variable value list. */
1744 record_target_var (struct nameseq
*filenames
, char *defn
,
1745 enum variable_origin origin
, struct vmodifiers
*vmod
,
1746 const struct floc
*flocp
)
1748 struct nameseq
*nextf
;
1749 struct variable_set_list
*global
;
1751 global
= current_variable_set_list
;
1753 /* If the variable is an append version, store that but treat it as a
1754 normal recursive variable. */
1756 for (; filenames
!= 0; filenames
= nextf
)
1759 const char *name
= filenames
->name
;
1760 const char *percent
;
1761 struct pattern_var
*p
;
1763 nextf
= filenames
->next
;
1764 free_ns (filenames
);
1766 /* If it's a pattern target, then add it to the pattern-specific
1768 percent
= find_percent_cached (&name
);
1771 /* Get a reference for this pattern-specific variable struct. */
1772 p
= create_pattern_var (name
, percent
);
1773 p
->variable
.fileinfo
= *flocp
;
1774 /* I don't think this can fail since we already determined it was a
1775 variable definition. */
1776 v
= assign_variable_definition (&p
->variable
, defn
);
1780 if (v
->flavor
== f_simple
)
1781 v
->value
= allocated_variable_expand (v
->value
);
1783 v
->value
= xstrdup (v
->value
);
1789 /* Get a file reference for this file, and initialize it.
1790 We don't want to just call enter_file() because that allocates a
1791 new entry if the file is a double-colon, which we don't want in
1793 f
= lookup_file (name
);
1795 f
= enter_file (strcache_add (name
));
1796 else if (f
->double_colon
)
1797 f
= f
->double_colon
;
1799 initialize_file_variables (f
, 1);
1801 current_variable_set_list
= f
->variables
;
1802 v
= try_variable_definition (flocp
, defn
, origin
, 1);
1804 fatal (flocp
, _("Malformed target-specific variable definition"));
1805 current_variable_set_list
= global
;
1808 /* Set up the variable to be *-specific. */
1810 v
->private_var
= vmod
->private_v
;
1811 v
->export
= vmod
->export_v
? v_export
: v_default
;
1813 /* If it's not an override, check to see if there was a command-line
1814 setting. If so, reset the value. */
1815 if (v
->origin
!= o_override
)
1817 struct variable
*gv
;
1818 int len
= strlen(v
->name
);
1820 gv
= lookup_variable (v
->name
, len
);
1822 && (gv
->origin
== o_env_override
|| gv
->origin
== o_command
))
1826 v
->value
= xstrdup (gv
->value
);
1827 v
->origin
= gv
->origin
;
1828 v
->recursive
= gv
->recursive
;
1835 /* Record a description line for files FILENAMES,
1836 with dependencies DEPS, commands to execute described
1837 by COMMANDS and COMMANDS_IDX, coming from FILENAME:COMMANDS_STARTED.
1838 TWO_COLON is nonzero if a double colon was used.
1839 If not nil, PATTERN is the '%' pattern to make this
1840 a static pattern rule, and PATTERN_PERCENT is a pointer
1841 to the '%' within it.
1843 The links of FILENAMES are freed, and so are any names in it
1844 that are not incorporated into other data structures. */
1847 record_files (struct nameseq
*filenames
, const char *pattern
,
1848 const char *pattern_percent
, char *depstr
,
1849 unsigned int cmds_started
, char *commands
,
1850 unsigned int commands_idx
, int two_colon
,
1851 char prefix
, const struct floc
*flocp
)
1853 struct commands
*cmds
;
1855 const char *implicit_percent
;
1858 /* If we've already snapped deps, that means we're in an eval being
1859 resolved after the makefiles have been read in. We can't add more rules
1860 at this time, since they won't get snapped and we'll get core dumps.
1861 See Savannah bug # 12124. */
1863 fatal (flocp
, _("prerequisites cannot be defined in recipes"));
1865 /* Determine if this is a pattern rule or not. */
1866 name
= filenames
->name
;
1867 implicit_percent
= find_percent_cached (&name
);
1869 /* If there's a recipe, set up a struct for it. */
1870 if (commands_idx
> 0)
1872 cmds
= xmalloc (sizeof (struct commands
));
1873 cmds
->fileinfo
.filenm
= flocp
->filenm
;
1874 cmds
->fileinfo
.lineno
= cmds_started
;
1875 cmds
->commands
= xstrndup (commands
, commands_idx
);
1876 cmds
->command_lines
= 0;
1877 cmds
->recipe_prefix
= prefix
;
1882 /* If there's a prereq string then parse it--unless it's eligible for 2nd
1883 expansion: if so, snap_deps() will do it. */
1888 depstr
= unescape_char (depstr
, ':');
1889 if (second_expansion
&& strchr (depstr
, '$'))
1891 deps
= alloc_dep ();
1892 deps
->name
= depstr
;
1893 deps
->need_2nd_expansion
= 1;
1894 deps
->staticpattern
= pattern
!= 0;
1898 deps
= split_prereqs (depstr
);
1901 /* We'll enter static pattern prereqs later when we have the stem.
1902 We don't want to enter pattern rules at all so that we don't
1903 think that they ought to exist (make manual "Implicit Rule Search
1904 Algorithm", item 5c). */
1905 if (! pattern
&& ! implicit_percent
)
1906 deps
= enter_prereqs (deps
, NULL
);
1910 /* For implicit rules, _all_ the targets must have a pattern. That means we
1911 can test the first one to see if we're working with an implicit rule; if
1912 so we handle it specially. */
1914 if (implicit_percent
)
1916 struct nameseq
*nextf
;
1917 const char **targets
, **target_pats
;
1921 fatal (flocp
, _("mixed implicit and static pattern rules"));
1923 /* Count the targets to create an array of target names.
1924 We already have the first one. */
1925 nextf
= filenames
->next
;
1926 free_ns (filenames
);
1929 for (c
= 1; nextf
; ++c
, nextf
= nextf
->next
)
1931 targets
= xmalloc (c
* sizeof (const char *));
1932 target_pats
= xmalloc (c
* sizeof (const char *));
1935 target_pats
[0] = implicit_percent
;
1940 name
= filenames
->name
;
1941 implicit_percent
= find_percent_cached (&name
);
1943 if (implicit_percent
== 0)
1944 fatal (flocp
, _("mixed implicit and normal rules"));
1947 target_pats
[c
] = implicit_percent
;
1950 nextf
= filenames
->next
;
1951 free_ns (filenames
);
1955 create_pattern_rule (targets
, target_pats
, c
, two_colon
, deps
, cmds
, 1);
1961 /* Walk through each target and create it in the database.
1962 We already set up the first target, above. */
1965 struct nameseq
*nextf
= filenames
->next
;
1967 struct dep
*this = 0;
1969 free_ns (filenames
);
1971 /* Check for special targets. Do it here instead of, say, snap_deps()
1972 so that we can immediately use the value. */
1973 if (streq (name
, ".POSIX"))
1976 define_variable_cname (".SHELLFLAGS", "-ec", o_default
, 0);
1977 /* These default values are based on IEEE Std 1003.1-2008. */
1978 define_variable_cname ("ARFLAGS", "-rv", o_default
, 0);
1979 define_variable_cname ("CC", "c99", o_default
, 0);
1980 define_variable_cname ("CFLAGS", "-O", o_default
, 0);
1981 define_variable_cname ("FC", "fort77", o_default
, 0);
1982 define_variable_cname ("FFLAGS", "-O 1", o_default
, 0);
1983 define_variable_cname ("SCCSGETFLAGS", "-s", o_default
, 0);
1985 else if (streq (name
, ".SECONDEXPANSION"))
1986 second_expansion
= 1;
1987 #if !defined(WINDOWS32) && !defined (__MSDOS__) && !defined (__EMX__)
1988 else if (streq (name
, ".ONESHELL"))
1992 /* If this is a static pattern rule:
1993 'targets: target%pattern: prereq%pattern; recipe',
1994 make sure the pattern matches this target name. */
1995 if (pattern
&& !pattern_matches (pattern
, pattern_percent
, name
))
1996 error (flocp
, _("target '%s' doesn't match the target pattern"), name
);
1998 /* If there are multiple targets, copy the chain DEPS for all but the
1999 last one. It is not safe for the same deps to go in more than one
2000 place in the database. */
2001 this = nextf
!= 0 ? copy_dep_chain (deps
) : deps
;
2003 /* Find or create an entry in the file database for this target. */
2006 /* Single-colon. Combine this rule with the file's existing record,
2008 f
= enter_file (strcache_add (name
));
2009 if (f
->double_colon
)
2011 _("target file '%s' has both : and :: entries"), f
->name
);
2013 /* If CMDS == F->CMDS, this target was listed in this rule
2014 more than once. Just give a warning since this is harmless. */
2015 if (cmds
!= 0 && cmds
== f
->cmds
)
2017 _("target '%s' given more than once in the same rule."),
2020 /* Check for two single-colon entries both with commands.
2021 Check is_target so that we don't lose on files such as .c.o
2022 whose commands were preinitialized. */
2023 else if (cmds
!= 0 && f
->cmds
!= 0 && f
->is_target
)
2025 error (&cmds
->fileinfo
,
2026 _("warning: overriding recipe for target '%s'"),
2028 error (&f
->cmds
->fileinfo
,
2029 _("warning: ignoring old recipe for target '%s'"),
2033 /* Defining .DEFAULT with no deps or cmds clears it. */
2034 if (f
== default_file
&& this == 0 && cmds
== 0)
2039 /* Defining .SUFFIXES with no dependencies clears out the list of
2041 if (f
== suffix_file
&& this == 0)
2043 free_dep_chain (f
->deps
);
2049 /* Double-colon. Make a new record even if there already is one. */
2050 f
= lookup_file (name
);
2052 /* Check for both : and :: rules. Check is_target so we don't lose
2053 on default suffix rules or makefiles. */
2054 if (f
!= 0 && f
->is_target
&& !f
->double_colon
)
2056 _("target file '%s' has both : and :: entries"), f
->name
);
2058 f
= enter_file (strcache_add (name
));
2059 /* If there was an existing entry and it was a double-colon entry,
2060 enter_file will have returned a new one, making it the prev
2061 pointer of the old one, and setting its double_colon pointer to
2063 if (f
->double_colon
== 0)
2064 /* This is the first entry for this name, so we must set its
2065 double_colon pointer to itself. */
2066 f
->double_colon
= f
;
2073 /* If this is a static pattern rule, set the stem to the part of its
2074 name that matched the '%' in the pattern, so you can use $* in the
2075 commands. If we didn't do it before, enter the prereqs now. */
2078 static const char *percent
= "%";
2079 char *buffer
= variable_expand ("");
2080 char *o
= patsubst_expand_pat (buffer
, name
, pattern
, percent
,
2081 pattern_percent
+1, percent
+1);
2082 f
->stem
= strcache_add_len (buffer
, o
- buffer
);
2085 if (! this->need_2nd_expansion
)
2086 this = enter_prereqs (this, f
->stem
);
2088 this->stem
= f
->stem
;
2092 /* Add the dependencies to this file entry. */
2095 /* Add the file's old deps and the new ones in THIS together. */
2100 struct dep
*d
= this;
2102 /* If this rule has commands, put these deps first. */
2103 while (d
->next
!= 0)
2111 struct dep
*d
= f
->deps
;
2113 /* A rule without commands: put its prereqs at the end. */
2114 while (d
->next
!= 0)
2123 /* All done! Set up for the next one. */
2129 /* Reduce escaped percents. If there are any unescaped it's an error */
2130 name
= filenames
->name
;
2131 if (find_percent_cached (&name
))
2132 fatal (flocp
, _("mixed implicit and normal rules"));
2136 /* Search STRING for an unquoted STOPCHAR or blank (if BLANK is nonzero).
2137 Backslashes quote STOPCHAR, blanks if BLANK is nonzero, and backslash.
2138 Quoting backslashes are removed from STRING by compacting it into
2139 itself. Returns a pointer to the first unquoted STOPCHAR if there is
2140 one, or nil if there are none. STOPCHARs inside variable references are
2141 ignored if IGNOREVARS is true.
2143 STOPCHAR _cannot_ be '$' if IGNOREVARS is true. */
2146 find_char_unquote (char *string
, int stop1
, int stop2
, int blank
,
2149 unsigned int string_len
= 0;
2158 while (*p
!= '\0' && *p
!= ignorevars
&& *p
!= stop1
&& *p
!= stop2
2159 && ! isblank ((unsigned char) *p
))
2162 while (*p
!= '\0' && *p
!= ignorevars
&& *p
!= stop1
&& *p
!= stop2
)
2165 while (*p
!= '\0' && *p
!= ignorevars
&& *p
!= stop1
2166 && ! isblank ((unsigned char) *p
))
2169 while (*p
!= '\0' && *p
!= ignorevars
&& *p
!= stop1
)
2175 /* If we stopped due to a variable reference, skip over its contents. */
2176 if (*p
== ignorevars
)
2178 char openparen
= p
[1];
2182 /* Skip the contents of a non-quoted, multi-char variable ref. */
2183 if (openparen
== '(' || openparen
== '{')
2185 unsigned int pcount
= 1;
2186 char closeparen
= (openparen
== '(' ? ')' : '}');
2190 if (*p
== openparen
)
2192 else if (*p
== closeparen
)
2202 /* Skipped the variable reference: look for STOPCHARS again. */
2206 if (p
> string
&& p
[-1] == '\\')
2208 /* Search for more backslashes. */
2210 while (&p
[i
] >= string
&& p
[i
] == '\\')
2213 /* Only compute the length if really needed. */
2214 if (string_len
== 0)
2215 string_len
= strlen (string
);
2216 /* The number of backslashes is now -I.
2217 Copy P over itself to swallow half of them. */
2218 memmove (&p
[i
], &p
[i
/2], (string_len
- (p
- string
)) - (i
/2) + 1);
2221 /* All the backslashes quoted each other; the STOPCHAR was
2225 /* The STOPCHAR was quoted by a backslash. Look for another. */
2228 /* No backslash in sight. */
2232 /* Never hit a STOPCHAR or blank (with BLANK nonzero). */
2236 /* Unescape a character in a string. The string is compressed onto itself. */
2239 unescape_char (char *string
, int c
)
2251 /* We found a backslash. See if it's escaping our character. */
2256 if (*e
!= c
|| l
%2 == 0)
2258 /* It's not; just take it all without unescaping. */
2264 /* It is, and there's >1 backslash. Take half of them. */
2279 /* Search PATTERN for an unquoted % and handle quoting. */
2282 find_percent (char *pattern
)
2284 return find_char_unquote (pattern
, '%', 0, 0, 0);
2287 /* Search STRING for an unquoted % and handle quoting. Returns a pointer to
2288 the % or NULL if no % was found.
2289 This version is used with strings in the string cache: if there's a need to
2290 modify the string a new version will be added to the string cache and
2291 *STRING will be set to that. */
2294 find_percent_cached (const char **string
)
2296 const char *p
= *string
;
2300 /* If the first char is a % return now. This lets us avoid extra tests
2307 while (*p
!= '\0' && *p
!= '%')
2313 /* See if this % is escaped with a backslash; if not we're done. */
2318 /* Search for more backslashes. */
2322 while (&p
[i
] >= *string
&& p
[i
] == '\\')
2326 /* At this point we know we'll need to allocate a new string.
2327 Make a copy if we haven't yet done so. */
2330 slen
= strlen (*string
);
2331 new = alloca (slen
+ 1);
2332 memcpy (new, *string
, slen
+ 1);
2333 p
= new + (p
- *string
);
2337 /* At this point *string, p, and new all point into the same string.
2338 Get a non-const version of p so we can modify new. */
2339 pv
= new + (p
- *string
);
2341 /* The number of backslashes is now -I.
2342 Copy P over itself to swallow half of them. */
2343 memmove (&pv
[i
], &pv
[i
/2], (slen
- (pv
- new)) - (i
/2) + 1);
2346 /* If the backslashes quoted each other; the % was unquoted. */
2352 /* If we had to change STRING, add it to the strcache. */
2355 *string
= strcache_add (*string
);
2356 p
= *string
+ (p
- new);
2359 /* If we didn't find a %, return NULL. Otherwise return a ptr to it. */
2360 return (*p
== '\0') ? NULL
: p
;
2363 /* Find the next line of text in an eval buffer, combining continuation lines
2365 Return the number of actual lines read (> 1 if continuation lines).
2366 Returns -1 if there's nothing left in the buffer.
2368 After this function, ebuf->buffer points to the first character of the
2372 /* Read a line of text from a STRING.
2373 Since we aren't really reading from a file, don't bother with linenumbers.
2376 static unsigned long
2377 readstring (struct ebuffer
*ebuf
)
2381 /* If there is nothing left in this buffer, return 0. */
2382 if (ebuf
->bufnext
>= ebuf
->bufstart
+ ebuf
->size
)
2385 /* Set up a new starting point for the buffer, and find the end of the
2386 next logical line (taking into account backslash/newline pairs). */
2388 eol
= ebuf
->buffer
= ebuf
->bufnext
;
2393 const char *bol
= eol
;
2396 /* Find the next newline. At EOS, stop. */
2397 p
= eol
= strchr (eol
, '\n');
2400 ebuf
->bufnext
= ebuf
->bufstart
+ ebuf
->size
+ 1;
2404 /* Found a newline; if it's escaped continue; else we're done. */
2405 while (p
> bol
&& *(--p
) == '\\')
2406 backslash
= !backslash
;
2412 /* Overwrite the newline char. */
2414 ebuf
->bufnext
= eol
+1;
2420 readline (struct ebuffer
*ebuf
)
2427 /* The behaviors between string and stream buffers are different enough to
2428 warrant different functions. Do the Right Thing. */
2431 return readstring (ebuf
);
2433 /* When reading from a file, we always start over at the beginning of the
2434 buffer for each new line. */
2436 p
= start
= ebuf
->bufstart
;
2437 end
= p
+ ebuf
->size
;
2440 while (fgets (p
, end
- p
, ebuf
->fp
) != 0)
2449 /* This only happens when the first thing on the line is a '\0'.
2450 It is a pretty hopeless case, but (wonder of wonders) Athena
2451 lossage strikes again! (xmkmf puts NULs in its makefiles.)
2452 There is nothing really to be done; we synthesize a newline so
2453 the following line doesn't appear to be part of this line. */
2455 _("warning: NUL character seen; rest of line ignored"));
2460 /* Jump past the text we just read. */
2463 /* If the last char isn't a newline, the whole line didn't fit into the
2464 buffer. Get some more buffer and try again. */
2468 /* We got a newline, so add one to the count of lines. */
2471 #if !defined(WINDOWS32) && !defined(__MSDOS__) && !defined(__EMX__)
2472 /* Check to see if the line was really ended with CRLF; if so ignore
2474 if ((p
- start
) > 1 && p
[-2] == '\r')
2482 for (p2
= p
- 2; p2
>= start
; --p2
)
2486 backslash
= !backslash
;
2495 /* It was a backslash/newline combo. If we have more space, read
2500 /* We need more space at the end of our buffer, so realloc it.
2501 Make sure to preserve the current offset of p. */
2504 unsigned long off
= p
- start
;
2506 start
= ebuf
->buffer
= ebuf
->bufstart
= xrealloc (start
, ebuf
->size
);
2508 end
= start
+ ebuf
->size
;
2513 if (ferror (ebuf
->fp
))
2514 pfatal_with_name (ebuf
->floc
.filenm
);
2516 /* If we found some lines, return how many.
2517 If we didn't, but we did find _something_, that indicates we read the last
2518 line of a file with no final newline; return 1.
2519 If we read nothing, we're at EOF; return -1. */
2521 return nlines
? nlines
: p
== ebuf
->bufstart
? -1 : 1;
2524 /* Parse the next "makefile word" from the input buffer, and return info
2527 A "makefile word" is one of:
2529 w_bogus Should never happen
2531 w_static A static word; cannot be expanded
2532 w_variable A word containing one or more variables/functions
2534 w_dcolon A double-colon
2535 w_semicolon A semicolon
2536 w_varassign A variable assignment operator (=, :=, ::=, +=, ?=, or !=)
2538 Note that this function is only used when reading certain parts of the
2539 makefile. Don't use it where special rules hold sway (RHS of a variable,
2540 in a command list, etc.) */
2542 static enum make_word_type
2543 get_next_mword (char *buffer
, char *delim
, char **startp
, unsigned int *length
)
2545 enum make_word_type wtype
= w_bogus
;
2546 char *p
= buffer
, *beg
;
2549 /* Skip any leading whitespace. */
2550 while (isblank ((unsigned char)*p
))
2562 wtype
= w_semicolon
;
2566 wtype
= w_varassign
;
2579 wtype
= w_varassign
;
2586 wtype
= w_varassign
;
2597 wtype
= w_varassign
;
2602 if (delim
&& strchr (delim
, c
))
2607 /* Did we find something? If so, return now. */
2608 if (wtype
!= w_bogus
)
2611 /* This is some non-operator word. A word consists of the longest
2612 string of characters that doesn't contain whitespace, one of [:=#],
2613 or [?+!]=, or one of the chars in the DELIM string. */
2615 /* We start out assuming a static word; if we see a variable we'll
2616 adjust our assumptions then. */
2619 /* We already found the first value of "c", above. */
2634 #ifdef HAVE_DOS_PATHS
2635 /* A word CAN include a colon in its drive spec. The drive
2636 spec is allowed either at the beginning of a word, or as part
2637 of the archive member name, like in "libfoo.a(d:/foo/bar.o)". */
2639 && (*p
== '/' || *p
== '\\') && isalpha ((unsigned char)p
[-2])
2640 && (p
- beg
== 2 || p
[-3] == '(')))
2649 /* This is a variable reference, so note that it's expandable.
2650 Then read it to the matching close paren. */
2658 /* This is a single-letter variable reference. */
2661 for (count
=0; *p
!= '\0'; ++p
)
2665 else if (*p
== closeparen
&& --count
< 0)
2692 if (delim
&& strchr (delim
, c
))
2710 /* Construct the list of include directories
2711 from the arguments and the default list. */
2714 construct_include_path (const char **arg_dirs
)
2716 #ifdef VAXC /* just don't ask ... */
2725 /* Compute the number of pointers we need in the table. */
2726 idx
= sizeof (default_include_directories
) / sizeof (const char *);
2728 for (cpp
= arg_dirs
; *cpp
!= 0; ++cpp
)
2732 /* Add one for $DJDIR. */
2736 dirs
= xmalloc (idx
* sizeof (const char *));
2741 /* First consider any dirs specified with -I switches.
2742 Ignore any that don't exist. Remember the maximum string length. */
2745 while (*arg_dirs
!= 0)
2747 const char *dir
= *(arg_dirs
++);
2753 expanded
= tilde_expand (dir
);
2758 EINTRLOOP (e
, stat (dir
, &stbuf
));
2759 if (e
== 0 && S_ISDIR (stbuf
.st_mode
))
2761 unsigned int len
= strlen (dir
);
2762 /* If dir name is written with trailing slashes, discard them. */
2763 while (len
> 1 && dir
[len
- 1] == '/')
2765 if (len
> max_incl_len
)
2767 dirs
[idx
++] = strcache_add_len (dir
, len
);
2774 /* Now add the standard default dirs at the end. */
2778 /* The environment variable $DJDIR holds the root of the DJGPP directory
2779 tree; add ${DJDIR}/include. */
2780 struct variable
*djdir
= lookup_variable ("DJDIR", 5);
2784 unsigned int len
= strlen (djdir
->value
) + 8;
2785 char *defdir
= alloca (len
+ 1);
2787 strcat (strcpy (defdir
, djdir
->value
), "/include");
2788 dirs
[idx
++] = strcache_add (defdir
);
2790 if (len
> max_incl_len
)
2796 for (cpp
= default_include_directories
; *cpp
!= 0; ++cpp
)
2800 EINTRLOOP (e
, stat (*cpp
, &stbuf
));
2801 if (e
== 0 && S_ISDIR (stbuf
.st_mode
))
2803 unsigned int len
= strlen (*cpp
);
2804 /* If dir name is written with trailing slashes, discard them. */
2805 while (len
> 1 && (*cpp
)[len
- 1] == '/')
2807 if (len
> max_incl_len
)
2809 dirs
[idx
++] = strcache_add_len (*cpp
, len
);
2815 /* Now add each dir to the .INCLUDE_DIRS variable. */
2817 for (cpp
= dirs
; *cpp
!= 0; ++cpp
)
2818 do_variable_definition (NILF
, ".INCLUDE_DIRS", *cpp
,
2819 o_default
, f_append
, 0);
2821 include_directories
= dirs
;
2824 /* Expand ~ or ~USER at the beginning of NAME.
2825 Return a newly malloc'd string or 0. */
2828 tilde_expand (const char *name
)
2831 if (name
[1] == '/' || name
[1] == '\0')
2833 extern char *getenv ();
2838 /* Turn off --warn-undefined-variables while we expand HOME. */
2839 int save
= warn_undefined_variables_flag
;
2840 warn_undefined_variables_flag
= 0;
2842 home_dir
= allocated_variable_expand ("$(HOME)");
2844 warn_undefined_variables_flag
= save
;
2847 is_variable
= home_dir
[0] != '\0';
2851 home_dir
= getenv ("HOME");
2853 # if !defined(_AMIGA) && !defined(WINDOWS32)
2854 if (home_dir
== 0 || home_dir
[0] == '\0')
2856 extern char *getlogin ();
2857 char *logname
= getlogin ();
2861 struct passwd
*p
= getpwnam (logname
);
2863 home_dir
= p
->pw_dir
;
2866 # endif /* !AMIGA && !WINDOWS32 */
2869 char *new = xstrdup (concat (2, home_dir
, name
+ 1));
2875 # if !defined(_AMIGA) && !defined(WINDOWS32)
2878 struct passwd
*pwent
;
2879 char *userend
= strchr (name
+ 1, '/');
2882 pwent
= getpwnam (name
+ 1);
2886 return xstrdup (pwent
->pw_dir
);
2888 return xstrdup (concat (3, pwent
->pw_dir
, "/", userend
+ 1));
2890 else if (userend
!= 0)
2893 # endif /* !AMIGA && !WINDOWS32 */
2898 /* Parse a string into a sequence of filenames represented as a chain of
2899 struct nameseq's and return that chain. Optionally expand the strings via
2902 The string is passed as STRINGP, the address of a string pointer.
2903 The string pointer is updated to point at the first character
2904 not parsed, which either is a null char or equals STOPCHAR.
2906 SIZE is how big to construct chain elements.
2907 This is useful if we want them actually to be other structures
2908 that have room for additional info.
2910 PREFIX, if non-null, is added to the beginning of each filename.
2912 FLAGS allows one or more of the following bitflags to be set:
2913 PARSEFS_NOSTRIP - Do no strip './'s off the beginning
2914 PARSEFS_NOAR - Do not check filenames for archive references
2915 PARSEFS_NOGLOB - Do not expand globbing characters
2916 PARSEFS_EXISTS - Only return globbed files that actually exist
2917 (cannot also set NOGLOB)
2918 PARSEFS_NOCACHE - Do not add filenames to the strcache (caller frees)
2922 parse_file_seq (char **stringp
, unsigned int size
, int stopchar
,
2923 const char *prefix
, int flags
)
2925 extern void dir_setup_glob (glob_t
*glob
);
2927 /* tmp points to tmpbuf after the prefix, if any.
2928 tp is the end of the buffer. */
2929 static char *tmpbuf
= NULL
;
2930 static int tmpbuf_len
= 0;
2932 int cachep
= (! (flags
& PARSEFS_NOCACHE
));
2934 struct nameseq
*new = 0;
2935 struct nameseq
**newp
= &new;
2936 #define NEWELT(_n) do { \
2937 const char *__n = (_n); \
2938 *newp = xcalloc (size); \
2939 (*newp)->name = (cachep ? strcache_add (__n) : xstrdup (__n)); \
2940 newp = &(*newp)->next; \
2948 # define VMS_COMMA ','
2950 # define VMS_COMMA 0
2953 if (size
< sizeof (struct nameseq
))
2954 size
= sizeof (struct nameseq
);
2956 if (! (flags
& PARSEFS_NOGLOB
))
2957 dir_setup_glob (&gl
);
2959 /* Get enough temporary space to construct the largest possible target. */
2961 int l
= strlen (*stringp
) + 1;
2964 tmpbuf
= xrealloc (tmpbuf
, l
);
2970 /* Parse STRING. P will always point to the end of the parsed content. */
2975 const char **nlist
= 0;
2986 /* Skip whitespace; at the end of the string or STOPCHAR we're done. */
2988 if (*p
== '\0' || *p
== stopchar
)
2991 /* There are names left, so find the end of the next name.
2992 Throughout this iteration S points to the start. */
2994 p
= find_char_unquote (p
, stopchar
, VMS_COMMA
, 1, 0);
2996 /* convert comma separated list to space separated */
3001 if (stopchar
== ':' && p
&& *p
== ':'
3002 && !(isspace ((unsigned char)p
[1]) || !p
[1]
3003 || isspace ((unsigned char)p
[-1])))
3004 p
= find_char_unquote (p
+1, stopchar
, VMS_COMMA
, 1, 0);
3006 #ifdef HAVE_DOS_PATHS
3007 /* For DOS paths, skip a "C:\..." or a "C:/..." until we find the
3008 first colon which isn't followed by a slash or a backslash.
3009 Note that tokens separated by spaces should be treated as separate
3010 tokens since make doesn't allow path names with spaces */
3011 if (stopchar
== ':')
3012 while (p
!= 0 && !isspace ((unsigned char)*p
) &&
3013 (p
[1] == '\\' || p
[1] == '/') && isalpha ((unsigned char)p
[-1]))
3014 p
= find_char_unquote (p
+ 1, stopchar
, VMS_COMMA
, 1, 0);
3019 /* Strip leading "this directory" references. */
3020 if (! (flags
& PARSEFS_NOSTRIP
))
3022 /* Skip leading '[]'s. */
3023 while (p
- s
> 2 && s
[0] == '[' && s
[1] == ']')
3025 /* Skip leading './'s. */
3026 while (p
- s
> 2 && s
[0] == '.' && s
[1] == '/')
3029 /* Skip "./" and all following slashes. */
3035 /* Extract the filename just found, and skip it.
3036 Set NAME to the string, and NLEN to its length. */
3040 /* The name was stripped to empty ("./"). */
3043 #elif defined(_AMIGA)
3044 /* PDS-- This cannot be right!! */
3057 /* VMS filenames can have a ':' in them but they have to be '\'ed but we need
3058 * to remove this '\' before we can use the filename.
3059 * xstrdup called because S may be read-only string constant.
3064 if (s
[0] == '\\' && s
[1] == ':')
3072 memcpy (tp
, s
, nlen
);
3077 /* At this point, TP points to the element and NLEN is its length. */
3080 /* If this is the start of an archive group that isn't complete, set up
3081 to add the archive prefix for future files. A file list like:
3082 "libf.a(x.o y.o z.o)" needs to be expanded as:
3083 "libf.a(x.o) libf.a(y.o) libf.a(z.o)"
3085 TP == TMP means we're not already in an archive group. Ignore
3086 something starting with '(', as that cannot actually be an
3087 archive-member reference (and treating it as such results in an empty
3088 file name, which causes much lossage). Also if it ends in ")" then
3089 it's a complete reference so we don't need to treat it specially.
3091 Finally, note that archive groups must end with ')' as the last
3092 character, so ensure there's some word ending like that before
3093 considering this an archive group. */
3094 if (! (flags
& PARSEFS_NOAR
)
3095 && tp
== tmpbuf
&& tp
[0] != '(' && tp
[nlen
-1] != ')')
3097 char *n
= strchr (tp
, '(');
3100 /* This looks like the first element in an open archive group.
3101 A valid group MUST have ')' as the last character. */
3107 /* Find the end of this word. We don't want to unquote and
3108 we don't care about quoting since we're looking for the
3109 last char in the word. */
3110 while (*e
!= '\0' && *e
!= stopchar
&& *e
!= VMS_COMMA
3111 && ! isblank ((unsigned char) *e
))
3113 /* If we didn't move, we're done now. */
3118 /* Found the end, so this is the first element in an
3119 open archive group. It looks like "lib(mem".
3120 Reset TP past the open paren. */
3121 nlen
-= (n
+ 1) - tp
;
3124 /* We can stop looking now. */
3130 /* If we have just "lib(", part of something like "lib( a b)",
3131 go to the next item. */
3137 /* If we are inside an archive group, make sure it has an end. */
3140 if (tp
[nlen
-1] == ')')
3142 /* This is the natural end; reset TP. */
3145 /* This is just ")", something like "lib(a b )": skip it. */
3151 /* Not the end, so add a "fake" end. */
3158 /* If we're not globbing we're done: add it to the end of the chain.
3159 Go to the next item in the string. */
3160 if (flags
& PARSEFS_NOGLOB
)
3162 NEWELT (concat (2, prefix
, tmpbuf
));
3166 /* If we get here we know we're doing glob expansion.
3167 TP is a string in tmpbuf. NLEN is no longer used.
3168 We may need to do more work: after this NAME will be set. */
3171 /* Expand tilde if applicable. */
3172 if (tmpbuf
[0] == '~')
3174 tildep
= tilde_expand (tmpbuf
);
3180 /* If NAME is an archive member reference replace it with the archive
3181 file name, and save the member name in MEMNAME. We will glob on the
3182 archive name and then reattach MEMNAME later. */
3183 if (! (flags
& PARSEFS_NOAR
) && ar_name (name
))
3185 ar_parse_name (name
, &arname
, &memname
);
3188 #endif /* !NO_ARCHIVES */
3190 /* glob() is expensive: don't call it unless we need to. */
3191 if (!(flags
& PARSEFS_EXISTS
) && strpbrk (name
, "?*[") == NULL
)
3198 switch (glob (name
, GLOB_NOSORT
|GLOB_ALTDIRFUNC
, NULL
, &gl
))
3201 fatal (NILF
, _("virtual memory exhausted"));
3206 nlist
= (const char **)gl
.gl_pathv
;
3210 /* If we want only existing items, skip this one. */
3211 if (flags
& PARSEFS_EXISTS
)
3219 /* By default keep this name. */
3225 /* For each matched element, add it to the list. */
3230 /* Try to glob on MEMNAME within the archive. */
3231 struct nameseq
*found
= ar_glob (nlist
[i
], memname
, size
);
3233 /* No matches. Use MEMNAME as-is. */
3234 NEWELT (concat (5, prefix
, nlist
[i
], "(", memname
, ")"));
3237 /* We got a chain of items. Attach them. */
3239 (*newp
)->next
= found
;
3243 /* Find and set the new end. Massage names if necessary. */
3247 found
->name
= xstrdup (concat (2, prefix
, name
));
3249 found
->name
= strcache_add (concat (2, prefix
, name
));
3251 if (found
->next
== 0)
3254 found
= found
->next
;
3256 newp
= &found
->next
;
3260 #endif /* !NO_ARCHIVES */
3261 NEWELT (concat (2, prefix
, nlist
[i
]));