diff -up gtksourceview-2.90.3/gtksourceview/Makefile.am.warn-all gtksourceview-2.90.3/gtksourceview/Makefile.am
--- gtksourceview-2.90.3/gtksourceview/Makefile.am.warn-all	2010-06-29 10:34:54.121941117 -0400
+++ gtksourceview-2.90.3/gtksourceview/Makefile.am	2010-06-29 10:35:12.226690385 -0400
@@ -166,7 +166,7 @@ if HAVE_INTROSPECTION
 INTROSPECTION_GIRS = GtkSource-3.0.gir
 
 GtkSource-3.0.gir: libgtksourceview-3.0.la
-INTROSPECTION_SCANNER_ARGS = -I$(top_srcdir) --warn-all
+INTROSPECTION_SCANNER_ARGS = -I$(top_srcdir)
 GtkSource_3_0_gir_NAMESPACE = GtkSource
 GtkSource_3_0_gir_VERSION = 3.0
 GtkSource_3_0_gir_LIBS = libgtksourceview-3.0.la
diff -up gtksourceview-2.90.3/gtksourceview/Makefile.in.warn-all gtksourceview-2.90.3/gtksourceview/Makefile.in
--- gtksourceview-2.90.3/gtksourceview/Makefile.in.warn-all	2010-06-29 10:35:00.708940698 -0400
+++ gtksourceview-2.90.3/gtksourceview/Makefile.in	2010-06-29 10:35:19.929866024 -0400
@@ -459,7 +459,7 @@ libgtksourcecompletionwords_files = \
 	./completion-providers/words/gtksourcecompletionwords.c
 
 @HAVE_INTROSPECTION_TRUE@INTROSPECTION_GIRS = GtkSource-3.0.gir
-@HAVE_INTROSPECTION_TRUE@INTROSPECTION_SCANNER_ARGS = -I$(top_srcdir) --warn-all
+@HAVE_INTROSPECTION_TRUE@INTROSPECTION_SCANNER_ARGS = -I$(top_srcdir)
 @HAVE_INTROSPECTION_TRUE@GtkSource_3_0_gir_NAMESPACE = GtkSource
 @HAVE_INTROSPECTION_TRUE@GtkSource_3_0_gir_VERSION = 3.0
 @HAVE_INTROSPECTION_TRUE@GtkSource_3_0_gir_LIBS = libgtksourceview-3.0.la