[gtk+] Build: Add wayland to GSKs dependencies

[Dominique Leuenberger <dleuen src gnome org>]

commit cae8fc74ac384efea24fa0625d6d5f76be612b99
Author: Dominique Leuenberger <dimstar opensuse org>
Date:   Thu Nov 24 19:50:34 2016 +0100

    Build: Add wayland to GSKs dependencies
    
    gskrenderer.c includes gdk/wayland/gdkwayland.h and as a consequence
    we need to be able to locate wayland's headers in case they are not
    in standard location.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=775038

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 83110e7..8ea6556 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1374,7 +1374,7 @@ GSK_EXTRA_LIBS=
 GSK_EXTRA_CFLAGS=
 
 GSK_PACKAGES="gdk-pixbuf-2.0 >= gdk_pixbuf_required_version cairo >= cairo_required_version cairo-gobject >= 
cairo_required_version graphene-1.0 >= graphene_required_version"
-GSK_PRIVATE_PACKAGES="epoxy >= epoxy_required_version"
+GSK_PRIVATE_PACKAGES="epoxy >= epoxy_required_version $WAYLAND_PACKAGES"
 
 PKG_CHECK_MODULES(GSK_DEP, $PANGO_PACKAGES $GSK_PACKAGES $GSK_PRIVATE_PACKAGES)
 GSK_DEP_LIBS="$GSK_EXTRA_LIBS $GSK_DEP_LIBS $MATH_LIB"