[seed] Fixing a build issue with webkit3 and webkit4

[Danilo Cesar Lemes de Paula <danilocesar src gnome org>]

commit 2f018889098bfc545199ecd4fcfd73ecc6bbfe1d
Author: Danilo Cesar Lemes de Paula <danilo cesar collabora co uk>
Date:   Tue Mar 8 15:49:01 2016 -0300

    Fixing a build issue with webkit3 and webkit4
    
    This avoids the issue when the build tries to import GTK2 and GTK3

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index bfa7351..02613b2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -327,7 +327,7 @@ AC_ARG_ENABLE(gtkbuilder-module,
                          [want_gtkbuilder_module=$enableval],[want_gtkbuilder_module="yes"])
 
 if test x"$want_gtkbuilder_module" = x"yes" ; then
-   if test x"$with_webkit" = x"3.0" ; then
+   if test x"$with_webkit" = x"3.0" || test x"$with_webkit" = x"4.0" ; then
        PKG_CHECK_MODULES(GTK, gtk+-3.0)
    else
        PKG_CHECK_MODULES(GTK, gtk+-2.0)