--- configure.in	2017-10-24 23:16:05.556291932 +0000
+++ configure.in	2017-10-24 23:32:23.366292049 +0000
@@ -393,8 +393,6 @@
 
 dnl configure use of features
 
-AM_PATH_GTK(1.2.0, HAVE_GTK="yes", HAVE_GTK="no")
-
 dnl ElectricFence malloc debugging
 AC_MSG_CHECKING(use of ElectricFence malloc debugging)
 AC_ARG_ENABLE(efence,
@@ -1119,6 +1117,8 @@
 FRONTEND_LDADD="${FRONTEND_LDADD} ${LTLIBICONV} ${CONFIG_MATH_LIB}"
 
 
+AC_SUBST(GTK_CFLAGS)
+
 AC_SUBST(INCLUDES)
 
 AC_SUBST(FRONTEND_LDFLAGS)