[gtkglext] Scan the build dirs for (generated) headers when generating the documentation.

[Braden McDaniel <bradenmcd src gnome org>]

commit dbe6718e6b15e7086b31d449cbf7ed09b0fe9460
Author: Braden McDaniel <braden endoframe com>
Date:   Sun Apr 25 05:07:34 2010 -0400

    Scan the build dirs for (generated) headers when generating the documentation.

 docs/reference/gtkglext/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gtkglext/Makefile.am b/docs/reference/gtkglext/Makefile.am
index ae84135..b141c74 100644
--- a/docs/reference/gtkglext/Makefile.am
+++ b/docs/reference/gtkglext/Makefile.am
@@ -129,7 +129,7 @@ scan-build.stamp: $(HFILE_GLOB)
 	    done \
 	fi
 	cd $(srcdir) && \
-	  gtkdoc-scan --module=$(DOC_MODULE) --source-dir=$(DOC_SOURCE_DIR) --ignore-headers="$(IGNORE_HFILES)" $(SCAN_OPTIONS) $(EXTRA_HFILES)
+	  gtkdoc-scan --module=$(DOC_MODULE) --source-dir=$(DOC_SOURCE_DIR) --source-dir=$(abs_top_builddir) --ignore-headers="$(IGNORE_HFILES)" $(SCAN_OPTIONS) $(EXTRA_HFILES)
 	touch scan-build.stamp
 
 $(DOC_MODULE)-decl.txt $(SCANOBJ_FILES): scan-build.stamp