build: Add $(top_buiddir)/clutter/cogl to the include path in clutter/cogl/cogl

Some files try to include "cogl/cogl-defines-gl.h" so
$(top_builddir)/clutter/cogl needs to be in the include path for out of
tree builds to work.

diff --git a/clutter/cogl/cogl/Makefile.am b/clutter/cogl/cogl/Makefile.am
index 5825a1b..81c5186 100644 (file)
--- a/clutter/cogl/cogl/Makefile.am
+++ b/clutter/cogl/cogl/Makefile.am
@@ -30,6 +30,7 @@ INCLUDES = \
        -I$(top_srcdir)/clutter/cogl            \
        -I$(srcdir)/winsys                      \
        -I$(srcdir)/driver/$(COGL_DRIVER)       \
+       -I$(top_builddir)/clutter/cogl          \
        $(NULL)
 
 # public headers