[glib] gsettings m4: check for .xml in src/builddir

[Ryan Lortie <ryanl src gnome org>]

commit b3593693d918f0ae97094f6712d817180b8eea6a
Author: Ryan Lortie <desrt desrt ca>
Date:   Thu May 27 11:58:54 2010 -0400

    gsettings m4: check for .xml in src/builddir
    
    This checks for the .gschema.xml file in the srcdir and builddir and
    runs the schema validation on which one it finds.  This handles
    non-srcdir builds in both cases: .gschema.xml is in the tarball and
    .gschema.xml is generated.

 m4macros/gsettings.m4 |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/m4macros/gsettings.m4 b/m4macros/gsettings.m4
index 329700d..b686989 100644
--- a/m4macros/gsettings.m4
+++ b/m4macros/gsettings.m4
@@ -28,7 +28,7 @@ AC_DEFUN([GLIB_GSETTINGS],
 mostlyclean-am: clean-gsettings-schemas
 
 %.gschema.valid: %.gschema.xml
-	$(AM_V_GEN) $(GLIB_COMPILE_SCHEMAS) --dry-run --schema-file=$^ && touch [$]@
+	$(AM_V_GEN) if test -f "$^"; then d=; else d="$(srcdir)/"; fi; $(GLIB_COMPILE_SCHEMAS) --dry-run --schema-file=$${d}$^ && touch [$]@
 
 all-am: $(gsettings_SCHEMAS:.xml=.valid)
 uninstall-am: uninstall-gsettings-schemas