automake: Convert src/mapi/glapi/gen/Makefile to automake.
diff --git a/configure.ac b/configure.ac
index c702758..7f2b694 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2166,6 +2166,7 @@
 		src/glsl/tests/Makefile
 		src/glx/Makefile
 		src/glx/tests/Makefile
+		src/mapi/glapi/gen/Makefile
 		src/mapi/shared-glapi/Makefile
 		src/mapi/glapi/tests/Makefile
 		src/gtest/Makefile