mesa; add a dummy _mesa_error_no_memory() symbol  to libglsl_util

Rather than forcing everyone to provide their own definition of the symbol
provide a common (dummy) one.

This helps us resolve the build of the standalone pipe-drivers (amongst
others), which are missing the symbol.

Cc: Rob Clark <robclark@freedesktop.org>
Cc: "10.6" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
diff --git a/src/Makefile.am b/src/Makefile.am
index 18cb4ce..5d69abd 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -72,4 +72,5 @@
 libglsl_util_la_SOURCES = \
 	mesa/main/imports.c \
 	mesa/program/prog_hash_table.c \
-	mesa/program/symbol_table.c
+	mesa/program/symbol_table.c \
+	mesa/program/dummy_errors.c