[evolution] Build against gtk+-3.0 when running distcheck.

[Matthew Barnes <mbarnes src gnome org>]

commit f919a3bc4ebe0f000af4122a4b2f756f9b631136
Author: Matthew Barnes <mbarnes redhat com>
Date:   Tue Jun 29 10:10:25 2010 -0400

    Build against gtk+-3.0 when running distcheck.

 Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 03870ac..092da4b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -115,6 +115,7 @@ MAINTAINERCLEANFILES =			\
 # Scrollkeeper must be disabled for distcheck to work because
 # distcheck uses a custom prefix.  See GNOME bug #354357.
 DISTCHECK_CONFIGURE_FLAGS =		\
+	--enable-gtk3			\
 	--enable-gtk-doc		\
 	--disable-scrollkeeper		\
 	--enable-test-component		\