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libcpp: * Makefile.am: Add makedepend. * Makefile.in, aclocal.m4: Regenerate. * charset.c: Insert a space to avoid a warning. * directives.c: Include mkdeps.h. (_cpp_handle_directive): Reenable macro expander if appropriate. (undefine_macros): Inline body of _cpp_free_definition for speed. Do not call undef callback or _cpp_warn_if_unused_macro. (cpp_get_deps): New interface. * files.c (search_cache): Add pfile argument. Check for file that would be found by "" or <> search here... (_cpp_find_file): ...not here. Correct recorded start_dir of files found by directory-of-current-file search that would be found by "" or <> search. * init.c (cpp_add_dependency_target): Delete. * internal.h (struct lexer_state): Add discarding_output flag. * lex.c (lex_identifier): Compute hash function while scanning. * macro.c (cpp_scan_nooutput): Disable macro expansion outside directives. * makedepend.c: New file. * mkdeps.c (struct deps): Add vpath vector. (apply_vpath, deps_add_vpath): New function. (deps_free): Free vpath vector. (deps_add_dep, deps_add_target): Use apply_vpath. * symtab.c (calc_hash): Use HT_HASHSTEP and HT_FINISH. (ht_lookup_with_hash): New function. * cpplib.h, mkdeps.h: Update prototypes. * symtab.h: Update prototypes. (HT_HASHSTEP, HT_FINISH): New macros. gcc: * Makefile.in (MKDEPS_H): New shorthand. (c-opts.o): Update dependencies. * c-opts.c: Include mkdeps.h. (handle_deferred_opts): Use cpp_get_deps and deps_add_target, not cpp_add_dependency_target. From-SVN: r82654
80 lines
3.4 KiB
C
80 lines
3.4 KiB
C
/* Dependency generator for Makefile fragments.
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Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
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Contributed by Zack Weinberg, Mar 2000
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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In other words, you are welcome to use, share and improve this program.
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You are forbidden to forbid anyone else to use, share and improve
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what you give them. Help stamp out software-hoarding! */
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#ifndef LIBCPP_MKDEPS_H
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#define LIBCPP_MKDEPS_H
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/* This is the data structure used by all the functions in mkdeps.c.
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It's quite straightforward, but should be treated as opaque. */
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struct deps;
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/* Create a deps buffer. */
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extern struct deps *deps_init (void);
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/* Destroy a deps buffer. */
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extern void deps_free (struct deps *);
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/* Add a set of "vpath" directories. The second argument is a colon-
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separated list of pathnames, like you would set Make's VPATH
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variable to. If a dependency or target name begins with any of
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these pathnames (and the next path element is not "..") that
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pathname is stripped off. */
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extern void deps_add_vpath (struct deps *, const char *);
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/* Add a target (appears on left side of the colon) to the deps list. Takes
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a boolean indicating whether to quote the target for MAKE. */
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extern void deps_add_target (struct deps *, const char *, int);
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/* Sets the default target if none has been given already. An empty
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string as the default target is interpreted as stdin. */
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extern void deps_add_default_target (struct deps *, const char *);
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/* Add a dependency (appears on the right side of the colon) to the
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deps list. Dependencies will be printed in the order that they
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were entered with this function. By convention, the first
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dependency entered should be the primary source file. */
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extern void deps_add_dep (struct deps *, const char *);
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/* Write out a deps buffer to a specified file. The third argument
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is the number of columns to word-wrap at (0 means don't wrap). */
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extern void deps_write (const struct deps *, FILE *, unsigned int);
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/* Write out a deps buffer to a file, in a form that can be read back
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with deps_restore. Returns nonzero on error, in which case the
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error number will be in errno. */
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extern int deps_save (struct deps *, FILE *);
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/* Read back dependency information written with deps_save into
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the deps buffer. The third argument may be NULL, in which case
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the dependency information is just skipped, or it may be a filename,
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in which case that filename is skipped. */
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extern int deps_restore (struct deps *, FILE *, const char *);
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/* For each dependency *except the first*, emit a dummy rule for that
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file, causing it to depend on nothing. This is used to work around
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the intermediate-file deletion misfeature in Make, in some
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automatic dependency schemes. */
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extern void deps_phony_targets (const struct deps *, FILE *);
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#endif /* ! LIBCPP_MKDEPS_H */
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