build/sources.mak: Add src/glsl/glcpp to INCLUDE_DIRS

Fixes problem where libdricore's of-out-tree build couldn't find
glcpp.h.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/mesa/sources.mak b/src/mesa/sources.mak
index be7e13d..30e2219 100644 (file)
--- a/src/mesa/sources.mak
+++ b/src/mesa/sources.mak
@@ -378,6 +378,7 @@ INCLUDE_DIRS = \
        -I$(top_srcdir)/include \
        -I$(top_srcdir)/src/glsl \
        -I$(top_builddir)/src/glsl \
+       -I$(top_srcdir)/src/glsl/glcpp \
        -I$(top_srcdir)/src/mesa \
        -I$(top_builddir)/src/mesa \
        -I$(top_srcdir)/src/mesa/main \