Fail to build if --enable-gtk3 is passed but only gtk2 is available

diff --git a/configure.ac b/configure.ac
index 0de76f4b0a5191133997b38367bf38aa8e82db43..e004410243bc522b71740da40d19a0cf484832ff 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -177,6 +177,10 @@ else
   have_gtk3="no"
 fi
 
   have_gtk3="no"
 fi
 

+if test "x$enable_gtk3" = "xyes" -a "x$have_gtk3" != "xyes"; then
+   AC_MSG_ERROR([Couldn't find gtk3 dependencies.])
+fi
+

 if test "x$have_gtk3" == "xyes"; then
   # GTK3 specific deps
   PKG_CHECK_MODULES(CANBERRA, libcanberra-gtk3 >= $LIBCANBERRA_GTK_REQUIRED)
 if test "x$have_gtk3" == "xyes"; then
   # GTK3 specific deps
   PKG_CHECK_MODULES(CANBERRA, libcanberra-gtk3 >= $LIBCANBERRA_GTK_REQUIRED)