[libsoup] Build fixes

[Dan Winship <danw src gnome org>]

commit 9c2059ce852a7e47b9f2945c0529135bf09c99c5
Author: Andreas Rottmann <a rottmann gmx at>
Date:   Sun Aug 9 09:46:36 2009 -0400

    Build fixes
    
    - Add -I$(top_builddir) to documentation scanner CFLAGS (fixes "make
      distcheck" run from an out-of-tree build)

 docs/reference/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/Makefile.am b/docs/reference/Makefile.am
index cd067dc..df53ba9 100644
--- a/docs/reference/Makefile.am
+++ b/docs/reference/Makefile.am
@@ -56,6 +56,7 @@ extra_files =
 # if $(DOC_MODULE).types is non-empty.
 GTKDOC_CFLAGS =				\
 	-I$(top_srcdir)			\
+	-I$(top_builddir)		\
 	$(GLIB_CFLAGS)			\
 	$(XML_CFLAGS)			\
 	$(GNUTLS_CFLAGS)		\