80 lines
3.4 KiB
C
80 lines
3.4 KiB
C
/* Dependency generator for Makefile fragments.
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Copyright (C) 2000-2018 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 3, 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; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>.
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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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