1 files changed, 2 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index c9b250ef..ad9c6d7d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -474,6 +474,8 @@ AC_CHECK_LIB(gladeui-1,glade_xml_node_new, [],
             )
 LIBS=$SAVELIBS
 
+AC_CHECK_HEADERS([gtk/gtkx.h])
+
 AC_DEFINE_DIR([PACKAGE_DATA], [datarootdir], [The directory for installing read-only architecture-independent data])
 
 # Set PACKAGE_SOURCE_DIR in gnunet_gtk_config.h.