GTK_DOC_CHECK(1.9)
# Check for required packages
-PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.14 gobject-2.0 gthread-2.0 gmodule-2.0)
+PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.32 gobject-2.0 gthread-2.0 gmodule-2.0)
PKG_CHECK_MODULES(CAIRO, cairo)
-PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.16)
PKG_CHECK_MODULES(SOUP, libsoup-2.4 >= 2.26)
+# Check for gtk 3
+AC_ARG_ENABLE([gtk3],
+ AS_HELP_STRING([--enable-gtk3], [Build with gtk3 support]))
+AS_IF([test "$enable_gtk3" = "yes"],
+ [PKG_CHECK_MODULES(GTK, gtk+-3.0 >= 3.0)],
+ [PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.18)])
+AS_IF([test "$enable_gtk3" = "yes"],
+ [GTK_VERSION=gtk+-3.0],
+ [GTK_VERSION=gtk+-2.0])
+AC_SUBST(GTK_VERSION)
+
# Check for glut for example plugin
AC_CHECK_LIB(glut, glutSolidTeapot, GLUT_LIBS="-lglut")
AM_CONDITIONAL(HAVE_GLUT, test "$GLUT_LIBS" != "")