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makedep: Add a helper to get a root-relative directory path.

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This commit is contained in:
Alexandre Julliard 2024-06-24 13:39:49 +02:00
parent ef7f9fed60
commit 58de2dec08
1 changed files with 27 additions and 2 deletions
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29
tools/makedep.c
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@ -539,6 +539,31 @@ static char *get_relative_path( const char *from, const char *dest )
}
/*******************************************************************
* get_root_relative_path
*
* Get relative path from obj dir to root.
*/
static const char *get_root_relative_path( struct makefile *make )
{
const char *dir = make->obj_dir;
char *ret, *p;
unsigned int dotdots = 0;
if (!dir) return ".";
while (*dir)
{
dotdots++;
while (*dir && *dir != '/') dir++;
while (*dir == '/') dir++;
}
ret = xmalloc( 3 * dotdots );
for (p = ret; dotdots; dotdots--, p += 3) memcpy( p, "../", 3 );
p[-1] = 0; /* remove trailing slash */
return ret;
}
/*******************************************************************
* concat_paths
*/
@ -2491,7 +2516,7 @@ static void output_srcdir_symlink( struct makefile *make, const char *obj )
src_name = src_file;
if (src_name[0] != '/' && make->obj_dir)
src_name = concat_paths( get_relative_path( make->obj_dir, "" ), src_name );
src_name = concat_paths( get_root_relative_path( make ), src_name );
output_symlink_rule( src_name, dst_file, 0 );
strarray_add( &make->all_targets[0], obj );
@ -4159,7 +4184,7 @@ static void output_stub_makefile( struct makefile *make )
output_filenames( targets );
output_filenames( make->clean_files );
output( ":\n" );
output( "\t@cd %s && $(MAKE) %s/$@\n", get_relative_path( make->obj_dir, "" ), make->obj_dir );
output( "\t@cd %s && $(MAKE) %s/$@\n", get_root_relative_path( make ), make->obj_dir );
output( ".PHONY:" );
output_filenames( targets );
output( "\n" );