* mkdeps.c, mkdeps.h: New files.

	* po/POTFILES.in: Add them.
	* Makefile.in (LIBCPP_OBJS): Add mkdeps.o.
	(cpplib.o, cppinit.o): Depend on mkdeps.h.
	(mkdeps.o): New target.

	* cppfiles.c: Delete deps_output.
	* cppinit.c: Include mkdeps.h.  Delete known_suffixes,
	OBJECT_SUFFIX, and base_name.
	(cpp_cleanup): Use deps_free.  Free ihash->name when clearing
	the include hash.
	(initialize_dependency_output): Use deps_init,
	deps_add_target, deps_calc_target, and deps_add_dep.  Remove
	all the unnecessary string bashing.
	(cpp_finish): Use deps_write.  Remove an unnecessary nesting
	level.
	* cpplib.c (do_include): Use deps_add_dep.
	* cpplib.h (struct cpp_reader): Replace deps_buffer,
	deps_allocated_size, deps_size, deps_column members with
	single pointer to a struct deps.  Delete prototype of
	deps_output.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32329 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 72 insertions, 0 deletions

diff --git a/gcc/mkdeps.h b/gcc/mkdeps.h
new file mode 100644
index 00000000000..7a2c130af8a
--- /dev/null
+++ b/gcc/mkdeps.h
@@ -0,0 +1,72 @@
+/* Dependency generator for Makefile fragments.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+   Contributed by Zack Weinberg, Mar 2000
+
+This program is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ In other words, you are welcome to use, share and improve this program.
+ You are forbidden to forbid anyone else to use, share and improve
+ what you give them.   Help stamp out software-hoarding!  */
+
+#ifndef __GCC_MKDEPS__
+#define __GCC_MKDEPS__
+
+/* This is the data structure used by all the functions in mkdeps.c.
+   It's quite straightforward, but should be treated as opaque.  */
+
+struct deps
+{
+  const char **targetv;
+  unsigned int ntargets;	/* number of slots actually occupied */
+  unsigned int targets_size;	/* amt of allocated space - in words */
+
+  const char **depv;
+  unsigned int ndeps;
+  unsigned int deps_size;
+};
+
+/* Create a deps buffer.  */
+extern struct deps *deps_init	PARAMS ((void));
+
+/* Destroy a deps buffer.  */
+extern void deps_free		PARAMS ((struct deps *));
+
+/* Add a target (appears on left side of the colon) to the deps list. */
+extern void deps_add_target	PARAMS ((struct deps *, const char *));
+
+/* Given the name of the primary source file, calculate and add the
+   name of the target.  This is done by locating and stripping the
+   file extension (if any) and adding .o (OBJECT_SUFFIX).  In addition,
+   any directory components of the path are discarded.  */
+extern void deps_calc_target	PARAMS ((struct deps *, const char *));
+
+/* Add a dependency (appears on the right side of the colon) to the
+   deps list.  Dependencies will be printed in the order that they
+   were entered with this function.  By convention, the first
+   dependency entered should be the primary source file.  */
+extern void deps_add_dep	PARAMS ((struct deps *, const char *));
+
+/* Write out a deps buffer to a specified file.  The third argument
+   is the number of columns to word-wrap at (0 means don't wrap).  */
+extern void deps_write		PARAMS ((const struct deps *, FILE *,
+					 unsigned int));
+
+/* For each dependency *except the first*, emit a dummy rule for that
+   file, causing it to depend on nothing.  This is used to work around
+   the intermediate-file deletion misfeature in Make, in some
+   automatic dependency schemes.  */
+extern void deps_dummy_targets	PARAMS ((const struct deps *, FILE *));
+
+#endif