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. If you see record_waiting_files(), then the statement
599 we are parsing also finishes the previous rule. */
601 commands
= xmalloc (200);
605 unsigned int linelen
;
610 struct vmodifiers vmod
;
612 /* At the top of this loop, we are starting a brand new line. */
613 /* Grab the next line to be evaluated */
614 ebuf
->floc
.lineno
+= nlines
;
615 nlines
= readline (ebuf
);
617 /* If there is nothing left to eval, we're done. */
623 /* If this is the first line, check for a UTF-8 BOM and skip it. */
624 if (ebuf
->floc
.lineno
== 1 && line
[0] == (char)0xEF
625 && line
[1] == (char)0xBB && line
[2] == (char)0xBF)
630 if (ebuf
->floc
.filenm
)
631 printf (_("Skipping UTF-8 BOM in makefile '%s'\n"),
634 printf (_("Skipping UTF-8 BOM in makefile buffer\n"));
638 /* If this line is empty, skip it. */
642 linelen
= strlen (line
);
644 /* Check for a shell command line first.
645 If it is not one, we can stop treating cmd_prefix specially. */
646 if (line
[0] == cmd_prefix
)
649 /* Ignore the commands in a rule with no targets. */
652 /* If there is no preceding rule line, don't treat this line
653 as a command, even though it begins with a recipe prefix.
654 SunOS 4 make appears to behave this way. */
659 /* Yep, this is a shell command, and we don't care. */
662 if (commands_idx
== 0)
663 cmds_started
= ebuf
->floc
.lineno
;
665 /* Append this command line to the line being accumulated.
666 Skip the initial command prefix character. */
667 if (linelen
+ commands_idx
> commands_len
)
669 commands_len
= (linelen
+ commands_idx
) * 2;
670 commands
= xrealloc (commands
, commands_len
);
672 memcpy (&commands
[commands_idx
], line
+ 1, linelen
- 1);
673 commands_idx
+= linelen
- 1;
674 commands
[commands_idx
++] = '\n';
679 /* This line is not a shell command line. Don't worry about whitespace.
680 Get more space if we need it; we don't need to preserve the current
681 contents of the buffer. */
683 if (collapsed_length
< linelen
+1)
685 collapsed_length
= linelen
+1;
688 /* Don't need xrealloc: we don't need to preserve the content. */
689 collapsed
= xmalloc (collapsed_length
);
691 strcpy (collapsed
, line
);
692 /* Collapse continuation lines. */
693 collapse_continuations (collapsed
);
694 remove_comments (collapsed
);
696 /* Get rid if starting space (including formfeed, vtab, etc.) */
698 while (isspace ((unsigned char)*p
))
701 /* See if this is a variable assignment. We need to do this early, to
702 allow variables with names like 'ifdef', 'export', 'private', etc. */
703 p
= parse_var_assignment(p
, &vmod
);
707 enum variable_origin origin
= vmod
.override_v
? o_override
: o_file
;
709 /* Variable assignment ends the previous rule. */
710 record_waiting_files ();
712 /* If we're ignoring then we're done now. */
716 in_ignored_define
= 1;
722 do_undefine (p
, origin
, ebuf
);
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 /* Export/unexport ends the previous rule. */
783 record_waiting_files ();
785 /* (un)export by itself causes everything to be (un)exported. */
787 export_all_variables
= exporting
;
794 /* Expand the line so we can use indirect and constructed
795 variable names in an (un)export command. */
796 cp
= ap
= allocated_variable_expand (p2
);
798 for (p
= find_next_token (&cp
, &l
); p
!= 0;
799 p
= find_next_token (&cp
, &l
))
801 struct variable
*v
= lookup_variable (p
, l
);
803 v
= define_variable_global (p
, l
, "", o_file
, 0, fstart
);
804 v
->export
= exporting
? v_export
: v_noexport
;
812 /* Handle the special syntax for vpath. */
813 if (word1eq ("vpath"))
819 /* vpath ends the previous rule. */
820 record_waiting_files ();
822 cp
= variable_expand (p2
);
823 p
= find_next_token (&cp
, &l
);
826 vpat
= xstrndup (p
, l
);
827 p
= find_next_token (&cp
, &l
);
828 /* No searchpath means remove all previous
829 selective VPATH's with the same pattern. */
832 /* No pattern means remove all previous selective VPATH's. */
834 construct_vpath_list (vpat
, p
);
841 /* Handle include and variants. */
842 if (word1eq ("include") || word1eq ("-include") || word1eq ("sinclude"))
844 /* We have found an 'include' line specifying a nested
845 makefile to be read at this point. */
846 struct conditionals
*save
;
847 struct conditionals new_conditionals
;
848 struct nameseq
*files
;
849 /* "-include" (vs "include") says no error if the file does not
850 exist. "sinclude" is an alias for this from SGI. */
851 int noerror
= (p
[0] != 'i');
853 /* Include ends the previous rule. */
854 record_waiting_files ();
856 p
= allocated_variable_expand (p2
);
858 /* If no filenames, it's a no-op. */
865 /* Parse the list of file names. Don't expand archive references! */
867 files
= PARSE_FILE_SEQ (&p2
, struct nameseq
, '\0', NULL
,
871 /* Save the state of conditionals and start
872 the included makefile with a clean slate. */
873 save
= install_conditionals (&new_conditionals
);
875 /* Record the rules that are waiting so they will determine
876 the default goal before those in the included makefile. */
877 record_waiting_files ();
879 /* Read each included makefile. */
882 struct nameseq
*next
= files
->next
;
883 const char *name
= files
->name
;
889 r
= eval_makefile (name
,
890 (RM_INCLUDED
| RM_NO_TILDE
891 | (noerror
? RM_DONTCARE
: 0)
892 | (set_default
? 0 : RM_NO_DEFAULT_GOAL
)));
894 error (fstart
, "%s: %s", name
, strerror (errno
));
897 /* Restore conditional state. */
898 restore_conditionals (save
);
903 /* Handle the load operations. */
904 if (word1eq ("load") || word1eq ("-load"))
906 /* A 'load' line specifies a dynamic object to load. */
907 struct nameseq
*files
;
908 int noerror
= (p
[0] == '-');
910 /* Load ends the previous rule. */
911 record_waiting_files ();
913 p
= allocated_variable_expand (p2
);
915 /* If no filenames, it's a no-op. */
922 /* Parse the list of file names.
923 Don't expand archive references or strip "./" */
925 files
= PARSE_FILE_SEQ (&p2
, struct nameseq
, '\0', NULL
,
926 PARSEFS_NOAR
|PARSEFS_NOSTRIP
);
929 /* Load each file. */
932 struct nameseq
*next
= files
->next
;
933 const char *name
= files
->name
;
938 if (! load_file (&ebuf
->floc
, name
, noerror
) && ! noerror
)
939 fatal (&ebuf
->floc
, _("%s: failed to load"), name
);
945 /* This line starts with a tab but was not caught above because there
946 was no preceding target, and the line might have been usable as a
947 variable definition. But now we know it is definitely lossage. */
948 if (line
[0] == cmd_prefix
)
949 fatal(fstart
, _("recipe commences before first target"));
951 /* This line describes some target files. This is complicated by
952 the existence of target-specific variables, because we can't
953 expand the entire line until we know if we have one or not. So
954 we expand the line word by word until we find the first ':',
955 then check to see if it's a target-specific variable.
957 In this algorithm, 'lb_next' will point to the beginning of the
958 unexpanded parts of the input buffer, while 'p2' points to the
959 parts of the expanded buffer we haven't searched yet. */
962 enum make_word_type wtype
;
963 char *cmdleft
, *semip
, *lb_next
;
964 unsigned int plen
= 0;
966 const char *end
, *beg
; /* Helpers for whitespace stripping. */
968 /* Record the previous rule. */
970 record_waiting_files ();
971 tgts_started
= fstart
->lineno
;
973 /* Search the line for an unquoted ; that is not after an
975 cmdleft
= find_char_unquote (line
, ';', '#', 0, 1);
976 if (cmdleft
!= 0 && *cmdleft
== '#')
978 /* We found a comment before a semicolon. */
982 else if (cmdleft
!= 0)
983 /* Found one. Cut the line short there before expanding it. */
987 collapse_continuations (line
);
989 /* We can't expand the entire line, since if it's a per-target
990 variable we don't want to expand it. So, walk from the
991 beginning, expanding as we go, and looking for "interesting"
992 chars. The first word is always expandable. */
993 wtype
= get_next_mword(line
, NULL
, &lb_next
, &wlen
);
998 fatal(fstart
, _("missing rule before recipe"));
999 /* This line contained something but turned out to be nothing
1000 but whitespace (a comment?). */
1005 /* We accept and ignore rules without targets for
1006 compatibility with SunOS 4 make. */
1014 p2
= variable_expand_string(NULL
, lb_next
, wlen
);
1021 /* Look for a semicolon in the expanded line. */
1022 cmdleft
= find_char_unquote (p2
, ';', 0, 0, 0);
1026 unsigned long p2_off
= p2
- variable_buffer
;
1027 unsigned long cmd_off
= cmdleft
- variable_buffer
;
1028 char *pend
= p2
+ strlen(p2
);
1030 /* Append any remnants of lb, then cut the line short
1031 at the semicolon. */
1034 /* One school of thought says that you shouldn't expand
1035 here, but merely copy, since now you're beyond a ";"
1036 and into a command script. However, the old parser
1037 expanded the whole line, so we continue that for
1038 backwards-compatiblity. Also, it wouldn't be
1039 entirely consistent, since we do an unconditional
1040 expand below once we know we don't have a
1041 target-specific variable. */
1042 (void)variable_expand_string(pend
, lb_next
, (long)-1);
1043 lb_next
+= strlen(lb_next
);
1044 p2
= variable_buffer
+ p2_off
;
1045 cmdleft
= variable_buffer
+ cmd_off
+ 1;
1049 colonp
= find_char_unquote(p2
, ':', 0, 0, 0);
1050 #ifdef HAVE_DOS_PATHS
1051 /* The drive spec brain-damage strikes again... */
1052 /* Note that the only separators of targets in this context
1053 are whitespace and a left paren. If others are possible,
1054 they should be added to the string in the call to index. */
1055 while (colonp
&& (colonp
[1] == '/' || colonp
[1] == '\\') &&
1056 colonp
> p2
&& isalpha ((unsigned char)colonp
[-1]) &&
1057 (colonp
== p2
+ 1 || strchr (" \t(", colonp
[-2]) != 0))
1058 colonp
= find_char_unquote(colonp
+ 1, ':', 0, 0, 0);
1063 wtype
= get_next_mword(lb_next
, NULL
, &lb_next
, &wlen
);
1069 p2
= variable_expand_string(p2
, lb_next
, wlen
);
1070 /* We don't need to worry about cmdleft here, because if it was
1071 found in the variable_buffer the entire buffer has already
1072 been expanded... we'll never get here. */
1075 p2
= next_token (variable_buffer
);
1077 /* If the word we're looking at is EOL, see if there's _anything_
1078 on the line. If not, a variable expanded to nothing, so ignore
1079 it. If so, we can't parse this line so punt. */
1083 /* There's no need to be ivory-tower about this: check for
1084 one of the most common bugs found in makefiles... */
1085 fatal (fstart
, _("missing separator%s"),
1086 (cmd_prefix
== '\t' && !strneq (line
, " ", 8))
1087 ? "" : _(" (did you mean TAB instead of 8 spaces?)"));
1091 /* Make the colon the end-of-string so we know where to stop
1092 looking for targets. Start there again once we're done. */
1094 filenames
= PARSE_FILE_SEQ (&p2
, struct nameseq
, '\0', NULL
, 0);
1100 /* We accept and ignore rules without targets for
1101 compatibility with SunOS 4 make. */
1105 /* This should never be possible; we handled it above. */
1106 assert (*p2
!= '\0');
1109 /* Is this a one-colon or two-colon entry? */
1110 two_colon
= *p2
== ':';
1114 /* Test to see if it's a target-specific variable. Copy the rest
1115 of the buffer over, possibly temporarily (we'll expand it later
1116 if it's not a target-specific variable). PLEN saves the length
1117 of the unparsed section of p2, for later. */
1118 if (*lb_next
!= '\0')
1120 unsigned int l
= p2
- variable_buffer
;
1122 variable_buffer_output (p2
+plen
, lb_next
, strlen (lb_next
)+1);
1123 p2
= variable_buffer
+ l
;
1126 p2
= parse_var_assignment (p2
, &vmod
);
1129 /* If there was a semicolon found, add it back, plus anything
1133 unsigned int l
= p2
- variable_buffer
;
1135 collapse_continuations (semip
);
1136 variable_buffer_output (p2
+ strlen (p2
),
1137 semip
, strlen (semip
)+1);
1138 p2
= variable_buffer
+ l
;
1140 record_target_var (filenames
, p2
,
1141 vmod
.override_v
? o_override
: o_file
,
1147 /* This is a normal target, _not_ a target-specific variable.
1148 Unquote any = in the dependency list. */
1149 find_char_unquote (lb_next
, '=', 0, 0, 0);
1151 /* Remember the command prefix for this target. */
1152 prefix
= cmd_prefix
;
1154 /* We have some targets, so don't ignore the following commands. */
1157 /* Expand the dependencies, etc. */
1158 if (*lb_next
!= '\0')
1160 unsigned int l
= p2
- variable_buffer
;
1161 (void) variable_expand_string (p2
+ plen
, lb_next
, (long)-1);
1162 p2
= variable_buffer
+ l
;
1164 /* Look for a semicolon in the expanded line. */
1167 cmdleft
= find_char_unquote (p2
, ';', 0, 0, 0);
1169 *(cmdleft
++) = '\0';
1173 /* Is this a static pattern rule: 'target: %targ: %dep; ...'? */
1174 p
= strchr (p2
, ':');
1175 while (p
!= 0 && p
[-1] == '\\')
1179 while (*q
-- == '\\')
1180 backslash
= !backslash
;
1182 p
= strchr (p
+ 1, ':');
1187 /* Here, the situation is quite complicated. Let's have a look
1188 at a couple of targets:
1196 The rule is that it's only a target, if there are TWO :'s
1197 OR a space around the :.
1199 if (p
&& !(isspace ((unsigned char)p
[1]) || !p
[1]
1200 || isspace ((unsigned char)p
[-1])))
1203 #ifdef HAVE_DOS_PATHS
1208 /* For DOS-style paths, skip a "C:\..." or a "C:/..." */
1209 if (p
!= 0 && (p
[1] == '\\' || p
[1] == '/') &&
1210 isalpha ((unsigned char)p
[-1]) &&
1211 (p
== p2
+ 1 || strchr (" \t:(", p
[-2]) != 0)) {
1212 p
= strchr (p
+ 1, ':');
1215 } while (check_again
);
1220 struct nameseq
*target
;
1221 target
= PARSE_FILE_SEQ (&p2
, struct nameseq
, ':', NULL
,
1225 fatal (fstart
, _("missing target pattern"));
1226 else if (target
->next
!= 0)
1227 fatal (fstart
, _("multiple target patterns"));
1228 pattern_percent
= find_percent_cached (&target
->name
);
1229 pattern
= target
->name
;
1230 if (pattern_percent
== 0)
1231 fatal (fstart
, _("target pattern contains no '%%'"));
1237 /* Strip leading and trailing whitespaces. */
1239 end
= beg
+ strlen (beg
) - 1;
1240 strip_whitespace (&beg
, &end
);
1242 /* Put all the prerequisites here; they'll be parsed later. */
1243 if (beg
<= end
&& *beg
!= '\0')
1244 depstr
= xstrndup (beg
, end
- beg
+ 1);
1251 /* Semicolon means rest of line is a command. */
1252 unsigned int l
= strlen (cmdleft
);
1254 cmds_started
= fstart
->lineno
;
1256 /* Add this command line to the buffer. */
1257 if (l
+ 2 > commands_len
)
1259 commands_len
= (l
+ 2) * 2;
1260 commands
= xrealloc (commands
, commands_len
);
1262 memcpy (commands
, cmdleft
, l
);
1264 commands
[commands_idx
++] = '\n';
1267 /* Determine if this target should be made default. We used to do
1268 this in record_files() but because of the delayed target recording
1269 and because preprocessor directives are legal in target's commands
1270 it is too late. Consider this fragment for example:
1274 ifeq ($(.DEFAULT_GOAL),foo)
1278 Because the target is not recorded until after ifeq directive is
1279 evaluated the .DEFAULT_GOAL does not contain foo yet as one
1280 would expect. Because of this we have to move the logic here. */
1282 if (set_default
&& default_goal_var
->value
[0] == '\0')
1286 struct nameseq
*t
= filenames
;
1288 for (; t
!= 0; t
= t
->next
)
1293 /* We have nothing to do if this is an implicit rule. */
1294 if (strchr (name
, '%') != 0)
1297 /* See if this target's name does not start with a '.',
1298 unless it contains a slash. */
1299 if (*name
== '.' && strchr (name
, '/') == 0
1300 #ifdef HAVE_DOS_PATHS
1301 && strchr (name
, '\\') == 0
1307 /* If this file is a suffix, don't let it be
1308 the default goal file. */
1309 for (d
= suffix_file
->deps
; d
!= 0; d
= d
->next
)
1311 register struct dep
*d2
;
1312 if (*dep_name (d
) != '.' && streq (name
, dep_name (d
)))
1317 for (d2
= suffix_file
->deps
; d2
!= 0; d2
= d2
->next
)
1319 unsigned int l
= strlen (dep_name (d2
));
1320 if (!strneq (name
, dep_name (d2
), l
))
1322 if (streq (name
+ l
, dep_name (d
)))
1335 define_variable_global (".DEFAULT_GOAL", 13, t
->name
,
1345 /* We get here except in the case that we just read a rule line.
1346 Record now the last rule we read, so following spurious
1347 commands are properly diagnosed. */
1348 record_waiting_files ();
1353 if (conditionals
->if_cmds
)
1354 fatal (fstart
, _("missing 'endif'"));
1356 /* At eof, record the last rule. */
1357 record_waiting_files ();
1365 /* Remove comments from LINE.
1366 This is done by copying the text at LINE onto itself. */
1369 remove_comments (char *line
)
1373 comment
= find_char_unquote (line
, '#', 0, 0, 0);
1376 /* Cut off the line at the #. */
1380 /* Execute a 'undefine' directive.
1381 The undefine line has already been read, and NAME is the name of
1382 the variable to be undefined. */
1385 do_undefine (char *name
, enum variable_origin origin
, struct ebuffer
*ebuf
)
1389 /* Expand the variable name and find the beginning (NAME) and end. */
1390 var
= allocated_variable_expand (name
);
1391 name
= next_token (var
);
1393 fatal (&ebuf
->floc
, _("empty variable name"));
1394 p
= name
+ strlen (name
) - 1;
1395 while (p
> name
&& isblank ((unsigned char)*p
))
1399 undefine_variable_global (name
, p
- name
+ 1, origin
);
1403 /* Execute a 'define' directive.
1404 The first line has already been read, and NAME is the name of
1405 the variable to be defined. The following lines remain to be read. */
1407 static struct variable
*
1408 do_define (char *name
, enum variable_origin origin
, struct ebuffer
*ebuf
)
1411 struct variable var
;
1412 struct floc defstart
;
1414 unsigned int length
= 100;
1415 char *definition
= xmalloc (length
);
1416 unsigned int idx
= 0;
1419 defstart
= ebuf
->floc
;
1421 p
= parse_variable_definition (name
, &var
);
1423 /* No assignment token, so assume recursive. */
1424 var
.flavor
= f_recursive
;
1427 if (var
.value
[0] != '\0')
1428 error (&defstart
, _("extraneous text after 'define' directive"));
1430 /* Chop the string before the assignment token to get the name. */
1431 var
.name
[var
.length
] = '\0';
1434 /* Expand the variable name and find the beginning (NAME) and end. */
1435 n
= allocated_variable_expand (name
);
1436 name
= next_token (n
);
1437 if (name
[0] == '\0')
1438 fatal (&defstart
, _("empty variable name"));
1439 p
= name
+ strlen (name
) - 1;
1440 while (p
> name
&& isblank ((unsigned char)*p
))
1444 /* Now read the value of the variable. */
1449 long nlines
= readline (ebuf
);
1451 /* If there is nothing left to be eval'd, there's no 'endef'!! */
1453 fatal (&defstart
, _("missing 'endef', unterminated 'define'"));
1455 ebuf
->floc
.lineno
+= nlines
;
1456 line
= ebuf
->buffer
;
1458 collapse_continuations (line
);
1460 /* If the line doesn't begin with a tab, test to see if it introduces
1461 another define, or ends one. Stop if we find an 'endef' */
1462 if (line
[0] != cmd_prefix
)
1464 p
= next_token (line
);
1467 /* If this is another 'define', increment the level count. */
1468 if ((len
== 6 || (len
> 6 && isblank ((unsigned char)p
[6])))
1469 && strneq (p
, "define", 6))
1472 /* If this is an 'endef', decrement the count. If it's now 0,
1473 we've found the last one. */
1474 else if ((len
== 5 || (len
> 5 && isblank ((unsigned char)p
[5])))
1475 && strneq (p
, "endef", 5))
1478 remove_comments (p
);
1479 if (*(next_token (p
)) != '\0')
1481 _("extraneous text after 'endef' directive"));
1488 /* Add this line to the variable definition. */
1489 len
= strlen (line
);
1490 if (idx
+ len
+ 1 > length
)
1492 length
= (idx
+ len
) * 2;
1493 definition
= xrealloc (definition
, length
+ 1);
1496 memcpy (&definition
[idx
], line
, len
);
1498 /* Separate lines with a newline. */
1499 definition
[idx
++] = '\n';
1502 /* We've got what we need; define the variable. */
1504 definition
[0] = '\0';
1506 definition
[idx
- 1] = '\0';
1508 v
= do_variable_definition (&defstart
, name
,
1509 definition
, origin
, var
.flavor
, 0);
1515 /* Interpret conditional commands "ifdef", "ifndef", "ifeq",
1516 "ifneq", "else" and "endif".
1517 LINE is the input line, with the command as its first word.
1519 FILENAME and LINENO are the filename and line number in the
1520 current makefile. They are used for error messages.
1522 Value is -2 if the line is not a conditional at all,
1523 -1 if the line is an invalid conditional,
1524 0 if following text should be interpreted,
1525 1 if following text should be ignored. */
1528 conditional_line (char *line
, int len
, const struct floc
*flocp
)
1531 enum { c_ifdef
, c_ifndef
, c_ifeq
, c_ifneq
, c_else
, c_endif
} cmdtype
;
1535 /* Compare a word, both length and contents. */
1536 #define word1eq(s) (len == CSTRLEN (s) && strneq (s, line, CSTRLEN (s)))
1537 #define chkword(s, t) if (word1eq (s)) { cmdtype = (t); cmdname = (s); }
1539 /* Make sure this line is a conditional. */
1540 chkword ("ifdef", c_ifdef
)
1541 else chkword ("ifndef", c_ifndef
)
1542 else chkword ("ifeq", c_ifeq
)
1543 else chkword ("ifneq", c_ifneq
)
1544 else chkword ("else", c_else
)
1545 else chkword ("endif", c_endif
)
1549 /* Found one: skip past it and any whitespace after it. */
1550 line
= next_token (line
+ len
);
1552 #define EXTRANEOUS() error (flocp, _("Extraneous text after '%s' directive"), cmdname)
1554 /* An 'endif' cannot contain extra text, and reduces the if-depth by 1 */
1555 if (cmdtype
== c_endif
)
1560 if (!conditionals
->if_cmds
)
1561 fatal (flocp
, _("extraneous '%s'"), cmdname
);
1563 --conditionals
->if_cmds
;
1568 /* An 'else' statement can either be simple, or it can have another
1569 conditional after it. */
1570 if (cmdtype
== c_else
)
1574 if (!conditionals
->if_cmds
)
1575 fatal (flocp
, _("extraneous '%s'"), cmdname
);
1577 o
= conditionals
->if_cmds
- 1;
1579 if (conditionals
->seen_else
[o
])
1580 fatal (flocp
, _("only one 'else' per conditional"));
1582 /* Change the state of ignorance. */
1583 switch (conditionals
->ignoring
[o
])
1586 /* We've just been interpreting. Never do it again. */
1587 conditionals
->ignoring
[o
] = 2;
1590 /* We've never interpreted yet. Maybe this time! */
1591 conditionals
->ignoring
[o
] = 0;
1595 /* It's a simple 'else'. */
1598 conditionals
->seen_else
[o
] = 1;
1602 /* The 'else' has extra text. That text must be another conditional
1603 and cannot be an 'else' or 'endif'. */
1605 /* Find the length of the next word. */
1606 for (p
= line
+1; *p
!= '\0' && !isspace ((unsigned char)*p
); ++p
)
1610 /* If it's 'else' or 'endif' or an illegal conditional, fail. */
1611 if (word1eq ("else") || word1eq ("endif")
1612 || conditional_line (line
, len
, flocp
) < 0)
1616 /* conditional_line() created a new level of conditional.
1617 Raise it back to this level. */
1618 if (conditionals
->ignoring
[o
] < 2)
1619 conditionals
->ignoring
[o
] = conditionals
->ignoring
[o
+1];
1620 --conditionals
->if_cmds
;
1626 if (conditionals
->allocated
== 0)
1628 conditionals
->allocated
= 5;
1629 conditionals
->ignoring
= xmalloc (conditionals
->allocated
);
1630 conditionals
->seen_else
= xmalloc (conditionals
->allocated
);
1633 o
= conditionals
->if_cmds
++;
1634 if (conditionals
->if_cmds
> conditionals
->allocated
)
1636 conditionals
->allocated
+= 5;
1637 conditionals
->ignoring
= xrealloc (conditionals
->ignoring
,
1638 conditionals
->allocated
);
1639 conditionals
->seen_else
= xrealloc (conditionals
->seen_else
,
1640 conditionals
->allocated
);
1643 /* Record that we have seen an 'if...' but no 'else' so far. */
1644 conditionals
->seen_else
[o
] = 0;
1646 /* Search through the stack to see if we're already ignoring. */
1647 for (i
= 0; i
< o
; ++i
)
1648 if (conditionals
->ignoring
[i
])
1650 /* We are already ignoring, so just push a level to match the next
1651 "else" or "endif", and keep ignoring. We don't want to expand
1652 variables in the condition. */
1653 conditionals
->ignoring
[o
] = 1;
1657 if (cmdtype
== c_ifdef
|| cmdtype
== c_ifndef
)
1663 /* Expand the thing we're looking up, so we can use indirect and
1664 constructed variable names. */
1665 var
= allocated_variable_expand (line
);
1667 /* Make sure there's only one variable name to test. */
1668 p
= end_of_token (var
);
1675 v
= lookup_variable (var
, i
);
1677 conditionals
->ignoring
[o
] =
1678 ((v
!= 0 && *v
->value
!= '\0') == (cmdtype
== c_ifndef
));
1684 /* "ifeq" or "ifneq". */
1687 char termin
= *line
== '(' ? ',' : *line
;
1689 if (termin
!= ',' && termin
!= '"' && termin
!= '\'')
1693 /* Find the end of the first string. */
1697 for (; *line
!= '\0'; ++line
)
1700 else if (*line
== ')')
1702 else if (*line
== ',' && count
<= 0)
1706 while (*line
!= '\0' && *line
!= termin
)
1714 /* Strip blanks after the first string. */
1716 while (isblank ((unsigned char)p
[-1]))
1723 s2
= variable_expand (s1
);
1724 /* We must allocate a new copy of the expanded string because
1725 variable_expand re-uses the same buffer. */
1727 s1
= alloca (l
+ 1);
1728 memcpy (s1
, s2
, l
+ 1);
1731 /* Find the start of the second string. */
1732 line
= next_token (line
);
1734 termin
= termin
== ',' ? ')' : *line
;
1735 if (termin
!= ')' && termin
!= '"' && termin
!= '\'')
1738 /* Find the end of the second string. */
1742 s2
= next_token (line
);
1743 for (line
= s2
; *line
!= '\0'; ++line
)
1747 else if (*line
== ')')
1760 while (*line
!= '\0' && *line
!= termin
)
1768 line
= next_token (++line
);
1772 s2
= variable_expand (s2
);
1773 conditionals
->ignoring
[o
] = (streq (s1
, s2
) == (cmdtype
== c_ifneq
));
1777 /* Search through the stack to see if we're ignoring. */
1778 for (i
= 0; i
< conditionals
->if_cmds
; ++i
)
1779 if (conditionals
->ignoring
[i
])
1785 /* Record target-specific variable values for files FILENAMES.
1786 TWO_COLON is nonzero if a double colon was used.
1788 The links of FILENAMES are freed, and so are any names in it
1789 that are not incorporated into other data structures.
1791 If the target is a pattern, add the variable to the pattern-specific
1792 variable value list. */
1795 record_target_var (struct nameseq
*filenames
, char *defn
,
1796 enum variable_origin origin
, struct vmodifiers
*vmod
,
1797 const struct floc
*flocp
)
1799 struct nameseq
*nextf
;
1800 struct variable_set_list
*global
;
1802 global
= current_variable_set_list
;
1804 /* If the variable is an append version, store that but treat it as a
1805 normal recursive variable. */
1807 for (; filenames
!= 0; filenames
= nextf
)
1810 const char *name
= filenames
->name
;
1811 const char *percent
;
1812 struct pattern_var
*p
;
1814 nextf
= filenames
->next
;
1815 free_ns (filenames
);
1817 /* If it's a pattern target, then add it to the pattern-specific
1819 percent
= find_percent_cached (&name
);
1822 /* Get a reference for this pattern-specific variable struct. */
1823 p
= create_pattern_var (name
, percent
);
1824 p
->variable
.fileinfo
= *flocp
;
1825 /* I don't think this can fail since we already determined it was a
1826 variable definition. */
1827 v
= assign_variable_definition (&p
->variable
, defn
);
1831 if (v
->flavor
== f_simple
)
1832 v
->value
= allocated_variable_expand (v
->value
);
1834 v
->value
= xstrdup (v
->value
);
1840 /* Get a file reference for this file, and initialize it.
1841 We don't want to just call enter_file() because that allocates a
1842 new entry if the file is a double-colon, which we don't want in
1844 f
= lookup_file (name
);
1846 f
= enter_file (strcache_add (name
));
1847 else if (f
->double_colon
)
1848 f
= f
->double_colon
;
1850 initialize_file_variables (f
, 1);
1852 current_variable_set_list
= f
->variables
;
1853 v
= try_variable_definition (flocp
, defn
, origin
, 1);
1855 fatal (flocp
, _("Malformed target-specific variable definition"));
1856 current_variable_set_list
= global
;
1859 /* Set up the variable to be *-specific. */
1861 v
->private_var
= vmod
->private_v
;
1862 v
->export
= vmod
->export_v
? v_export
: v_default
;
1864 /* If it's not an override, check to see if there was a command-line
1865 setting. If so, reset the value. */
1866 if (v
->origin
!= o_override
)
1868 struct variable
*gv
;
1869 int len
= strlen(v
->name
);
1871 gv
= lookup_variable (v
->name
, len
);
1873 && (gv
->origin
== o_env_override
|| gv
->origin
== o_command
))
1877 v
->value
= xstrdup (gv
->value
);
1878 v
->origin
= gv
->origin
;
1879 v
->recursive
= gv
->recursive
;
1886 /* Record a description line for files FILENAMES,
1887 with dependencies DEPS, commands to execute described
1888 by COMMANDS and COMMANDS_IDX, coming from FILENAME:COMMANDS_STARTED.
1889 TWO_COLON is nonzero if a double colon was used.
1890 If not nil, PATTERN is the '%' pattern to make this
1891 a static pattern rule, and PATTERN_PERCENT is a pointer
1892 to the '%' within it.
1894 The links of FILENAMES are freed, and so are any names in it
1895 that are not incorporated into other data structures. */
1898 record_files (struct nameseq
*filenames
, const char *pattern
,
1899 const char *pattern_percent
, char *depstr
,
1900 unsigned int cmds_started
, char *commands
,
1901 unsigned int commands_idx
, int two_colon
,
1902 char prefix
, const struct floc
*flocp
)
1904 struct commands
*cmds
;
1906 const char *implicit_percent
;
1909 /* If we've already snapped deps, that means we're in an eval being
1910 resolved after the makefiles have been read in. We can't add more rules
1911 at this time, since they won't get snapped and we'll get core dumps.
1912 See Savannah bug # 12124. */
1914 fatal (flocp
, _("prerequisites cannot be defined in recipes"));
1916 /* Determine if this is a pattern rule or not. */
1917 name
= filenames
->name
;
1918 implicit_percent
= find_percent_cached (&name
);
1920 /* If there's a recipe, set up a struct for it. */
1921 if (commands_idx
> 0)
1923 cmds
= xmalloc (sizeof (struct commands
));
1924 cmds
->fileinfo
.filenm
= flocp
->filenm
;
1925 cmds
->fileinfo
.lineno
= cmds_started
;
1926 cmds
->commands
= xstrndup (commands
, commands_idx
);
1927 cmds
->command_lines
= 0;
1928 cmds
->recipe_prefix
= prefix
;
1933 /* If there's a prereq string then parse it--unless it's eligible for 2nd
1934 expansion: if so, snap_deps() will do it. */
1939 depstr
= unescape_char (depstr
, ':');
1940 if (second_expansion
&& strchr (depstr
, '$'))
1942 deps
= alloc_dep ();
1943 deps
->name
= depstr
;
1944 deps
->need_2nd_expansion
= 1;
1945 deps
->staticpattern
= pattern
!= 0;
1949 deps
= split_prereqs (depstr
);
1952 /* We'll enter static pattern prereqs later when we have the stem.
1953 We don't want to enter pattern rules at all so that we don't
1954 think that they ought to exist (make manual "Implicit Rule Search
1955 Algorithm", item 5c). */
1956 if (! pattern
&& ! implicit_percent
)
1957 deps
= enter_prereqs (deps
, NULL
);
1961 /* For implicit rules, _all_ the targets must have a pattern. That means we
1962 can test the first one to see if we're working with an implicit rule; if
1963 so we handle it specially. */
1965 if (implicit_percent
)
1967 struct nameseq
*nextf
;
1968 const char **targets
, **target_pats
;
1972 fatal (flocp
, _("mixed implicit and static pattern rules"));
1974 /* Count the targets to create an array of target names.
1975 We already have the first one. */
1976 nextf
= filenames
->next
;
1977 free_ns (filenames
);
1980 for (c
= 1; nextf
; ++c
, nextf
= nextf
->next
)
1982 targets
= xmalloc (c
* sizeof (const char *));
1983 target_pats
= xmalloc (c
* sizeof (const char *));
1986 target_pats
[0] = implicit_percent
;
1991 name
= filenames
->name
;
1992 implicit_percent
= find_percent_cached (&name
);
1994 if (implicit_percent
== 0)
1995 fatal (flocp
, _("mixed implicit and normal rules"));
1998 target_pats
[c
] = implicit_percent
;
2001 nextf
= filenames
->next
;
2002 free_ns (filenames
);
2006 create_pattern_rule (targets
, target_pats
, c
, two_colon
, deps
, cmds
, 1);
2012 /* Walk through each target and create it in the database.
2013 We already set up the first target, above. */
2016 struct nameseq
*nextf
= filenames
->next
;
2018 struct dep
*this = 0;
2020 free_ns (filenames
);
2022 /* Check for special targets. Do it here instead of, say, snap_deps()
2023 so that we can immediately use the value. */
2024 if (streq (name
, ".POSIX"))
2027 define_variable_cname (".SHELLFLAGS", "-ec", o_default
, 0);
2028 /* These default values are based on IEEE Std 1003.1-2008. */
2029 define_variable_cname ("ARFLAGS", "-rv", o_default
, 0);
2030 define_variable_cname ("CC", "c99", o_default
, 0);
2031 define_variable_cname ("CFLAGS", "-O", o_default
, 0);
2032 define_variable_cname ("FC", "fort77", o_default
, 0);
2033 define_variable_cname ("FFLAGS", "-O 1", o_default
, 0);
2034 define_variable_cname ("SCCSGETFLAGS", "-s", o_default
, 0);
2036 else if (streq (name
, ".SECONDEXPANSION"))
2037 second_expansion
= 1;
2038 #if !defined(WINDOWS32) && !defined (__MSDOS__) && !defined (__EMX__)
2039 else if (streq (name
, ".ONESHELL"))
2043 /* If this is a static pattern rule:
2044 'targets: target%pattern: prereq%pattern; recipe',
2045 make sure the pattern matches this target name. */
2046 if (pattern
&& !pattern_matches (pattern
, pattern_percent
, name
))
2047 error (flocp
, _("target '%s' doesn't match the target pattern"), name
);
2049 /* If there are multiple targets, copy the chain DEPS for all but the
2050 last one. It is not safe for the same deps to go in more than one
2051 place in the database. */
2052 this = nextf
!= 0 ? copy_dep_chain (deps
) : deps
;
2054 /* Find or create an entry in the file database for this target. */
2057 /* Single-colon. Combine this rule with the file's existing record,
2059 f
= enter_file (strcache_add (name
));
2060 if (f
->double_colon
)
2062 _("target file '%s' has both : and :: entries"), f
->name
);
2064 /* If CMDS == F->CMDS, this target was listed in this rule
2065 more than once. Just give a warning since this is harmless. */
2066 if (cmds
!= 0 && cmds
== f
->cmds
)
2068 _("target '%s' given more than once in the same rule."),
2071 /* Check for two single-colon entries both with commands.
2072 Check is_target so that we don't lose on files such as .c.o
2073 whose commands were preinitialized. */
2074 else if (cmds
!= 0 && f
->cmds
!= 0 && f
->is_target
)
2076 error (&cmds
->fileinfo
,
2077 _("warning: overriding recipe for target '%s'"),
2079 error (&f
->cmds
->fileinfo
,
2080 _("warning: ignoring old recipe for target '%s'"),
2084 /* Defining .DEFAULT with no deps or cmds clears it. */
2085 if (f
== default_file
&& this == 0 && cmds
== 0)
2090 /* Defining .SUFFIXES with no dependencies clears out the list of
2092 if (f
== suffix_file
&& this == 0)
2094 free_dep_chain (f
->deps
);
2100 /* Double-colon. Make a new record even if there already is one. */
2101 f
= lookup_file (name
);
2103 /* Check for both : and :: rules. Check is_target so we don't lose
2104 on default suffix rules or makefiles. */
2105 if (f
!= 0 && f
->is_target
&& !f
->double_colon
)
2107 _("target file '%s' has both : and :: entries"), f
->name
);
2109 f
= enter_file (strcache_add (name
));
2110 /* If there was an existing entry and it was a double-colon entry,
2111 enter_file will have returned a new one, making it the prev
2112 pointer of the old one, and setting its double_colon pointer to
2114 if (f
->double_colon
== 0)
2115 /* This is the first entry for this name, so we must set its
2116 double_colon pointer to itself. */
2117 f
->double_colon
= f
;
2124 /* If this is a static pattern rule, set the stem to the part of its
2125 name that matched the '%' in the pattern, so you can use $* in the
2126 commands. If we didn't do it before, enter the prereqs now. */
2129 static const char *percent
= "%";
2130 char *buffer
= variable_expand ("");
2131 char *o
= patsubst_expand_pat (buffer
, name
, pattern
, percent
,
2132 pattern_percent
+1, percent
+1);
2133 f
->stem
= strcache_add_len (buffer
, o
- buffer
);
2136 if (! this->need_2nd_expansion
)
2137 this = enter_prereqs (this, f
->stem
);
2139 this->stem
= f
->stem
;
2143 /* Add the dependencies to this file entry. */
2146 /* Add the file's old deps and the new ones in THIS together. */
2151 struct dep
*d
= this;
2153 /* If this rule has commands, put these deps first. */
2154 while (d
->next
!= 0)
2162 struct dep
*d
= f
->deps
;
2164 /* A rule without commands: put its prereqs at the end. */
2165 while (d
->next
!= 0)
2174 /* All done! Set up for the next one. */
2180 /* Reduce escaped percents. If there are any unescaped it's an error */
2181 name
= filenames
->name
;
2182 if (find_percent_cached (&name
))
2183 fatal (flocp
, _("mixed implicit and normal rules"));
2187 /* Search STRING for an unquoted STOPCHAR or blank (if BLANK is nonzero).
2188 Backslashes quote STOPCHAR, blanks if BLANK is nonzero, and backslash.
2189 Quoting backslashes are removed from STRING by compacting it into
2190 itself. Returns a pointer to the first unquoted STOPCHAR if there is
2191 one, or nil if there are none. STOPCHARs inside variable references are
2192 ignored if IGNOREVARS is true.
2194 STOPCHAR _cannot_ be '$' if IGNOREVARS is true. */
2197 find_char_unquote (char *string
, int stop1
, int stop2
, int blank
,
2200 unsigned int string_len
= 0;
2209 while (*p
!= '\0' && *p
!= ignorevars
&& *p
!= stop1
&& *p
!= stop2
2210 && ! isblank ((unsigned char) *p
))
2213 while (*p
!= '\0' && *p
!= ignorevars
&& *p
!= stop1
&& *p
!= stop2
)
2216 while (*p
!= '\0' && *p
!= ignorevars
&& *p
!= stop1
2217 && ! isblank ((unsigned char) *p
))
2220 while (*p
!= '\0' && *p
!= ignorevars
&& *p
!= stop1
)
2226 /* If we stopped due to a variable reference, skip over its contents. */
2227 if (*p
== ignorevars
)
2229 char openparen
= p
[1];
2233 /* Skip the contents of a non-quoted, multi-char variable ref. */
2234 if (openparen
== '(' || openparen
== '{')
2236 unsigned int pcount
= 1;
2237 char closeparen
= (openparen
== '(' ? ')' : '}');
2241 if (*p
== openparen
)
2243 else if (*p
== closeparen
)
2253 /* Skipped the variable reference: look for STOPCHARS again. */
2257 if (p
> string
&& p
[-1] == '\\')
2259 /* Search for more backslashes. */
2261 while (&p
[i
] >= string
&& p
[i
] == '\\')
2264 /* Only compute the length if really needed. */
2265 if (string_len
== 0)
2266 string_len
= strlen (string
);
2267 /* The number of backslashes is now -I.
2268 Copy P over itself to swallow half of them. */
2269 memmove (&p
[i
], &p
[i
/2], (string_len
- (p
- string
)) - (i
/2) + 1);
2272 /* All the backslashes quoted each other; the STOPCHAR was
2276 /* The STOPCHAR was quoted by a backslash. Look for another. */
2279 /* No backslash in sight. */
2283 /* Never hit a STOPCHAR or blank (with BLANK nonzero). */
2287 /* Unescape a character in a string. The string is compressed onto itself. */
2290 unescape_char (char *string
, int c
)
2302 /* We found a backslash. See if it's escaping our character. */
2307 if (*e
!= c
|| l
%2 == 0)
2309 /* It's not; just take it all without unescaping. */
2315 /* It is, and there's >1 backslash. Take half of them. */
2330 /* Search PATTERN for an unquoted % and handle quoting. */
2333 find_percent (char *pattern
)
2335 return find_char_unquote (pattern
, '%', 0, 0, 0);
2338 /* Search STRING for an unquoted % and handle quoting. Returns a pointer to
2339 the % or NULL if no % was found.
2340 This version is used with strings in the string cache: if there's a need to
2341 modify the string a new version will be added to the string cache and
2342 *STRING will be set to that. */
2345 find_percent_cached (const char **string
)
2347 const char *p
= *string
;
2351 /* If the first char is a % return now. This lets us avoid extra tests
2358 while (*p
!= '\0' && *p
!= '%')
2364 /* See if this % is escaped with a backslash; if not we're done. */
2369 /* Search for more backslashes. */
2373 while (&p
[i
] >= *string
&& p
[i
] == '\\')
2377 /* At this point we know we'll need to allocate a new string.
2378 Make a copy if we haven't yet done so. */
2381 slen
= strlen (*string
);
2382 new = alloca (slen
+ 1);
2383 memcpy (new, *string
, slen
+ 1);
2384 p
= new + (p
- *string
);
2388 /* At this point *string, p, and new all point into the same string.
2389 Get a non-const version of p so we can modify new. */
2390 pv
= new + (p
- *string
);
2392 /* The number of backslashes is now -I.
2393 Copy P over itself to swallow half of them. */
2394 memmove (&pv
[i
], &pv
[i
/2], (slen
- (pv
- new)) - (i
/2) + 1);
2397 /* If the backslashes quoted each other; the % was unquoted. */
2403 /* If we had to change STRING, add it to the strcache. */
2406 *string
= strcache_add (*string
);
2407 p
= *string
+ (p
- new);
2410 /* If we didn't find a %, return NULL. Otherwise return a ptr to it. */
2411 return (*p
== '\0') ? NULL
: p
;
2414 /* Find the next line of text in an eval buffer, combining continuation lines
2416 Return the number of actual lines read (> 1 if continuation lines).
2417 Returns -1 if there's nothing left in the buffer.
2419 After this function, ebuf->buffer points to the first character of the
2423 /* Read a line of text from a STRING.
2424 Since we aren't really reading from a file, don't bother with linenumbers.
2427 static unsigned long
2428 readstring (struct ebuffer
*ebuf
)
2432 /* If there is nothing left in this buffer, return 0. */
2433 if (ebuf
->bufnext
>= ebuf
->bufstart
+ ebuf
->size
)
2436 /* Set up a new starting point for the buffer, and find the end of the
2437 next logical line (taking into account backslash/newline pairs). */
2439 eol
= ebuf
->buffer
= ebuf
->bufnext
;
2444 const char *bol
= eol
;
2447 /* Find the next newline. At EOS, stop. */
2448 p
= eol
= strchr (eol
, '\n');
2451 ebuf
->bufnext
= ebuf
->bufstart
+ ebuf
->size
+ 1;
2455 /* Found a newline; if it's escaped continue; else we're done. */
2456 while (p
> bol
&& *(--p
) == '\\')
2457 backslash
= !backslash
;
2463 /* Overwrite the newline char. */
2465 ebuf
->bufnext
= eol
+1;
2471 readline (struct ebuffer
*ebuf
)
2478 /* The behaviors between string and stream buffers are different enough to
2479 warrant different functions. Do the Right Thing. */
2482 return readstring (ebuf
);
2484 /* When reading from a file, we always start over at the beginning of the
2485 buffer for each new line. */
2487 p
= start
= ebuf
->bufstart
;
2488 end
= p
+ ebuf
->size
;
2491 while (fgets (p
, end
- p
, ebuf
->fp
) != 0)
2500 /* This only happens when the first thing on the line is a '\0'.
2501 It is a pretty hopeless case, but (wonder of wonders) Athena
2502 lossage strikes again! (xmkmf puts NULs in its makefiles.)
2503 There is nothing really to be done; we synthesize a newline so
2504 the following line doesn't appear to be part of this line. */
2506 _("warning: NUL character seen; rest of line ignored"));
2511 /* Jump past the text we just read. */
2514 /* If the last char isn't a newline, the whole line didn't fit into the
2515 buffer. Get some more buffer and try again. */
2519 /* We got a newline, so add one to the count of lines. */
2522 #if !defined(WINDOWS32) && !defined(__MSDOS__) && !defined(__EMX__)
2523 /* Check to see if the line was really ended with CRLF; if so ignore
2525 if ((p
- start
) > 1 && p
[-2] == '\r')
2533 for (p2
= p
- 2; p2
>= start
; --p2
)
2537 backslash
= !backslash
;
2546 /* It was a backslash/newline combo. If we have more space, read
2551 /* We need more space at the end of our buffer, so realloc it.
2552 Make sure to preserve the current offset of p. */
2555 unsigned long off
= p
- start
;
2557 start
= ebuf
->buffer
= ebuf
->bufstart
= xrealloc (start
, ebuf
->size
);
2559 end
= start
+ ebuf
->size
;
2564 if (ferror (ebuf
->fp
))
2565 pfatal_with_name (ebuf
->floc
.filenm
);
2567 /* If we found some lines, return how many.
2568 If we didn't, but we did find _something_, that indicates we read the last
2569 line of a file with no final newline; return 1.
2570 If we read nothing, we're at EOF; return -1. */
2572 return nlines
? nlines
: p
== ebuf
->bufstart
? -1 : 1;
2575 /* Parse the next "makefile word" from the input buffer, and return info
2578 A "makefile word" is one of:
2580 w_bogus Should never happen
2582 w_static A static word; cannot be expanded
2583 w_variable A word containing one or more variables/functions
2585 w_dcolon A double-colon
2586 w_semicolon A semicolon
2587 w_varassign A variable assignment operator (=, :=, ::=, +=, ?=, or !=)
2589 Note that this function is only used when reading certain parts of the
2590 makefile. Don't use it where special rules hold sway (RHS of a variable,
2591 in a command list, etc.) */
2593 static enum make_word_type
2594 get_next_mword (char *buffer
, char *delim
, char **startp
, unsigned int *length
)
2596 enum make_word_type wtype
= w_bogus
;
2597 char *p
= buffer
, *beg
;
2600 /* Skip any leading whitespace. */
2601 while (isblank ((unsigned char)*p
))
2613 wtype
= w_semicolon
;
2617 wtype
= w_varassign
;
2630 wtype
= w_varassign
;
2637 wtype
= w_varassign
;
2648 wtype
= w_varassign
;
2653 if (delim
&& strchr (delim
, c
))
2658 /* Did we find something? If so, return now. */
2659 if (wtype
!= w_bogus
)
2662 /* This is some non-operator word. A word consists of the longest
2663 string of characters that doesn't contain whitespace, one of [:=#],
2664 or [?+!]=, or one of the chars in the DELIM string. */
2666 /* We start out assuming a static word; if we see a variable we'll
2667 adjust our assumptions then. */
2670 /* We already found the first value of "c", above. */
2685 #ifdef HAVE_DOS_PATHS
2686 /* A word CAN include a colon in its drive spec. The drive
2687 spec is allowed either at the beginning of a word, or as part
2688 of the archive member name, like in "libfoo.a(d:/foo/bar.o)". */
2690 && (*p
== '/' || *p
== '\\') && isalpha ((unsigned char)p
[-2])
2691 && (p
- beg
== 2 || p
[-3] == '(')))
2700 /* This is a variable reference, so note that it's expandable.
2701 Then read it to the matching close paren. */
2709 /* This is a single-letter variable reference. */
2712 for (count
=0; *p
!= '\0'; ++p
)
2716 else if (*p
== closeparen
&& --count
< 0)
2743 if (delim
&& strchr (delim
, c
))
2761 /* Construct the list of include directories
2762 from the arguments and the default list. */
2765 construct_include_path (const char **arg_dirs
)
2767 #ifdef VAXC /* just don't ask ... */
2776 /* Compute the number of pointers we need in the table. */
2777 idx
= sizeof (default_include_directories
) / sizeof (const char *);
2779 for (cpp
= arg_dirs
; *cpp
!= 0; ++cpp
)
2783 /* Add one for $DJDIR. */
2787 dirs
= xmalloc (idx
* sizeof (const char *));
2792 /* First consider any dirs specified with -I switches.
2793 Ignore any that don't exist. Remember the maximum string length. */
2796 while (*arg_dirs
!= 0)
2798 const char *dir
= *(arg_dirs
++);
2804 expanded
= tilde_expand (dir
);
2809 EINTRLOOP (e
, stat (dir
, &stbuf
));
2810 if (e
== 0 && S_ISDIR (stbuf
.st_mode
))
2812 unsigned int len
= strlen (dir
);
2813 /* If dir name is written with trailing slashes, discard them. */
2814 while (len
> 1 && dir
[len
- 1] == '/')
2816 if (len
> max_incl_len
)
2818 dirs
[idx
++] = strcache_add_len (dir
, len
);
2825 /* Now add the standard default dirs at the end. */
2829 /* The environment variable $DJDIR holds the root of the DJGPP directory
2830 tree; add ${DJDIR}/include. */
2831 struct variable
*djdir
= lookup_variable ("DJDIR", 5);
2835 unsigned int len
= strlen (djdir
->value
) + 8;
2836 char *defdir
= alloca (len
+ 1);
2838 strcat (strcpy (defdir
, djdir
->value
), "/include");
2839 dirs
[idx
++] = strcache_add (defdir
);
2841 if (len
> max_incl_len
)
2847 for (cpp
= default_include_directories
; *cpp
!= 0; ++cpp
)
2851 EINTRLOOP (e
, stat (*cpp
, &stbuf
));
2852 if (e
== 0 && S_ISDIR (stbuf
.st_mode
))
2854 unsigned int len
= strlen (*cpp
);
2855 /* If dir name is written with trailing slashes, discard them. */
2856 while (len
> 1 && (*cpp
)[len
- 1] == '/')
2858 if (len
> max_incl_len
)
2860 dirs
[idx
++] = strcache_add_len (*cpp
, len
);
2866 /* Now add each dir to the .INCLUDE_DIRS variable. */
2868 for (cpp
= dirs
; *cpp
!= 0; ++cpp
)
2869 do_variable_definition (NILF
, ".INCLUDE_DIRS", *cpp
,
2870 o_default
, f_append
, 0);
2872 include_directories
= dirs
;
2875 /* Expand ~ or ~USER at the beginning of NAME.
2876 Return a newly malloc'd string or 0. */
2879 tilde_expand (const char *name
)
2882 if (name
[1] == '/' || name
[1] == '\0')
2884 extern char *getenv ();
2889 /* Turn off --warn-undefined-variables while we expand HOME. */
2890 int save
= warn_undefined_variables_flag
;
2891 warn_undefined_variables_flag
= 0;
2893 home_dir
= allocated_variable_expand ("$(HOME)");
2895 warn_undefined_variables_flag
= save
;
2898 is_variable
= home_dir
[0] != '\0';
2902 home_dir
= getenv ("HOME");
2904 # if !defined(_AMIGA) && !defined(WINDOWS32)
2905 if (home_dir
== 0 || home_dir
[0] == '\0')
2907 extern char *getlogin ();
2908 char *logname
= getlogin ();
2912 struct passwd
*p
= getpwnam (logname
);
2914 home_dir
= p
->pw_dir
;
2917 # endif /* !AMIGA && !WINDOWS32 */
2920 char *new = xstrdup (concat (2, home_dir
, name
+ 1));
2926 # if !defined(_AMIGA) && !defined(WINDOWS32)
2929 struct passwd
*pwent
;
2930 char *userend
= strchr (name
+ 1, '/');
2933 pwent
= getpwnam (name
+ 1);
2937 return xstrdup (pwent
->pw_dir
);
2939 return xstrdup (concat (3, pwent
->pw_dir
, "/", userend
+ 1));
2941 else if (userend
!= 0)
2944 # endif /* !AMIGA && !WINDOWS32 */
2949 /* Parse a string into a sequence of filenames represented as a chain of
2950 struct nameseq's and return that chain. Optionally expand the strings via
2953 The string is passed as STRINGP, the address of a string pointer.
2954 The string pointer is updated to point at the first character
2955 not parsed, which either is a null char or equals STOPCHAR.
2957 SIZE is how big to construct chain elements.
2958 This is useful if we want them actually to be other structures
2959 that have room for additional info.
2961 PREFIX, if non-null, is added to the beginning of each filename.
2963 FLAGS allows one or more of the following bitflags to be set:
2964 PARSEFS_NOSTRIP - Do no strip './'s off the beginning
2965 PARSEFS_NOAR - Do not check filenames for archive references
2966 PARSEFS_NOGLOB - Do not expand globbing characters
2967 PARSEFS_EXISTS - Only return globbed files that actually exist
2968 (cannot also set NOGLOB)
2969 PARSEFS_NOCACHE - Do not add filenames to the strcache (caller frees)
2973 parse_file_seq (char **stringp
, unsigned int size
, int stopchar
,
2974 const char *prefix
, int flags
)
2976 extern void dir_setup_glob (glob_t
*glob
);
2978 /* tmp points to tmpbuf after the prefix, if any.
2979 tp is the end of the buffer. */
2980 static char *tmpbuf
= NULL
;
2981 static int tmpbuf_len
= 0;
2983 int cachep
= (! (flags
& PARSEFS_NOCACHE
));
2985 struct nameseq
*new = 0;
2986 struct nameseq
**newp
= &new;
2987 #define NEWELT(_n) do { \
2988 const char *__n = (_n); \
2989 *newp = xcalloc (size); \
2990 (*newp)->name = (cachep ? strcache_add (__n) : xstrdup (__n)); \
2991 newp = &(*newp)->next; \
2999 # define VMS_COMMA ','
3001 # define VMS_COMMA 0
3004 if (size
< sizeof (struct nameseq
))
3005 size
= sizeof (struct nameseq
);
3007 if (! (flags
& PARSEFS_NOGLOB
))
3008 dir_setup_glob (&gl
);
3010 /* Get enough temporary space to construct the largest possible target. */
3012 int l
= strlen (*stringp
) + 1;
3015 tmpbuf
= xrealloc (tmpbuf
, l
);
3021 /* Parse STRING. P will always point to the end of the parsed content. */
3026 const char **nlist
= 0;
3037 /* Skip whitespace; at the end of the string or STOPCHAR we're done. */
3039 if (*p
== '\0' || *p
== stopchar
)
3042 /* There are names left, so find the end of the next name.
3043 Throughout this iteration S points to the start. */
3045 p
= find_char_unquote (p
, stopchar
, VMS_COMMA
, 1, 0);
3047 /* convert comma separated list to space separated */
3052 if (stopchar
== ':' && p
&& *p
== ':'
3053 && !(isspace ((unsigned char)p
[1]) || !p
[1]
3054 || isspace ((unsigned char)p
[-1])))
3055 p
= find_char_unquote (p
+1, stopchar
, VMS_COMMA
, 1, 0);
3057 #ifdef HAVE_DOS_PATHS
3058 /* For DOS paths, skip a "C:\..." or a "C:/..." until we find the
3059 first colon which isn't followed by a slash or a backslash.
3060 Note that tokens separated by spaces should be treated as separate
3061 tokens since make doesn't allow path names with spaces */
3062 if (stopchar
== ':')
3063 while (p
!= 0 && !isspace ((unsigned char)*p
) &&
3064 (p
[1] == '\\' || p
[1] == '/') && isalpha ((unsigned char)p
[-1]))
3065 p
= find_char_unquote (p
+ 1, stopchar
, VMS_COMMA
, 1, 0);
3070 /* Strip leading "this directory" references. */
3071 if (! (flags
& PARSEFS_NOSTRIP
))
3073 /* Skip leading '[]'s. */
3074 while (p
- s
> 2 && s
[0] == '[' && s
[1] == ']')
3076 /* Skip leading './'s. */
3077 while (p
- s
> 2 && s
[0] == '.' && s
[1] == '/')
3080 /* Skip "./" and all following slashes. */
3086 /* Extract the filename just found, and skip it.
3087 Set NAME to the string, and NLEN to its length. */
3091 /* The name was stripped to empty ("./"). */
3094 #elif defined(_AMIGA)
3095 /* PDS-- This cannot be right!! */
3108 /* VMS filenames can have a ':' in them but they have to be '\'ed but we need
3109 * to remove this '\' before we can use the filename.
3110 * xstrdup called because S may be read-only string constant.
3115 if (s
[0] == '\\' && s
[1] == ':')
3123 memcpy (tp
, s
, nlen
);
3128 /* At this point, TP points to the element and NLEN is its length. */
3131 /* If this is the start of an archive group that isn't complete, set up
3132 to add the archive prefix for future files. A file list like:
3133 "libf.a(x.o y.o z.o)" needs to be expanded as:
3134 "libf.a(x.o) libf.a(y.o) libf.a(z.o)"
3136 TP == TMP means we're not already in an archive group. Ignore
3137 something starting with '(', as that cannot actually be an
3138 archive-member reference (and treating it as such results in an empty
3139 file name, which causes much lossage). Also if it ends in ")" then
3140 it's a complete reference so we don't need to treat it specially.
3142 Finally, note that archive groups must end with ')' as the last
3143 character, so ensure there's some word ending like that before
3144 considering this an archive group. */
3145 if (! (flags
& PARSEFS_NOAR
)
3146 && tp
== tmpbuf
&& tp
[0] != '(' && tp
[nlen
-1] != ')')
3148 char *n
= strchr (tp
, '(');
3151 /* This looks like the first element in an open archive group.
3152 A valid group MUST have ')' as the last character. */
3158 /* Find the end of this word. We don't want to unquote and
3159 we don't care about quoting since we're looking for the
3160 last char in the word. */
3161 while (*e
!= '\0' && *e
!= stopchar
&& *e
!= VMS_COMMA
3162 && ! isblank ((unsigned char) *e
))
3164 /* If we didn't move, we're done now. */
3169 /* Found the end, so this is the first element in an
3170 open archive group. It looks like "lib(mem".
3171 Reset TP past the open paren. */
3172 nlen
-= (n
+ 1) - tp
;
3175 /* We can stop looking now. */
3181 /* If we have just "lib(", part of something like "lib( a b)",
3182 go to the next item. */
3188 /* If we are inside an archive group, make sure it has an end. */
3191 if (tp
[nlen
-1] == ')')
3193 /* This is the natural end; reset TP. */
3196 /* This is just ")", something like "lib(a b )": skip it. */
3202 /* Not the end, so add a "fake" end. */
3209 /* If we're not globbing we're done: add it to the end of the chain.
3210 Go to the next item in the string. */
3211 if (flags
& PARSEFS_NOGLOB
)
3213 NEWELT (concat (2, prefix
, tmpbuf
));
3217 /* If we get here we know we're doing glob expansion.
3218 TP is a string in tmpbuf. NLEN is no longer used.
3219 We may need to do more work: after this NAME will be set. */
3222 /* Expand tilde if applicable. */
3223 if (tmpbuf
[0] == '~')
3225 tildep
= tilde_expand (tmpbuf
);
3231 /* If NAME is an archive member reference replace it with the archive
3232 file name, and save the member name in MEMNAME. We will glob on the
3233 archive name and then reattach MEMNAME later. */
3234 if (! (flags
& PARSEFS_NOAR
) && ar_name (name
))
3236 ar_parse_name (name
, &arname
, &memname
);
3239 #endif /* !NO_ARCHIVES */
3241 /* glob() is expensive: don't call it unless we need to. */
3242 if (!(flags
& PARSEFS_EXISTS
) && strpbrk (name
, "?*[") == NULL
)
3249 switch (glob (name
, GLOB_NOSORT
|GLOB_ALTDIRFUNC
, NULL
, &gl
))
3252 fatal (NILF
, _("virtual memory exhausted"));
3257 nlist
= (const char **)gl
.gl_pathv
;
3261 /* If we want only existing items, skip this one. */
3262 if (flags
& PARSEFS_EXISTS
)
3270 /* By default keep this name. */
3276 /* For each matched element, add it to the list. */
3281 /* Try to glob on MEMNAME within the archive. */
3282 struct nameseq
*found
= ar_glob (nlist
[i
], memname
, size
);
3284 /* No matches. Use MEMNAME as-is. */
3285 NEWELT (concat (5, prefix
, nlist
[i
], "(", memname
, ")"));
3288 /* We got a chain of items. Attach them. */
3290 (*newp
)->next
= found
;
3294 /* Find and set the new end. Massage names if necessary. */
3298 found
->name
= xstrdup (concat (2, prefix
, name
));
3300 found
->name
= strcache_add (concat (2, prefix
, name
));
3302 if (found
->next
== 0)
3305 found
= found
->next
;
3307 newp
= &found
->next
;
3311 #endif /* !NO_ARCHIVES */
3312 NEWELT (concat (2, prefix
, nlist
[i
]));