disable 3dlabs shading language code until build is fixed

src/mesa/sources

@@ -149,8 +149,9 @@ SHADER_SOURCES = \
 	shader/nvvertexec.c \
 	shader/nvvertparse.c \
 	shader/program.c \
-	shader/shaderobjects.c \
-	shader/shaderobjects_3dlabs.c
+	shader/shaderobjects.c
+
+#	shader/shaderobjects_3dlabs.c
 
 SLANG_SOURCES = \
 	shader/slang/MachineIndependent/preprocessor/atom.c \
@@ -276,7 +277,7 @@ CORE_SOURCES = \
 
 ### Object files
 
-CORE_OBJECTS = $(CORE_SOURCES:.c=.o) $(SLANG_CPP_SOURCES:.cpp=.o)
+CORE_OBJECTS = $(CORE_SOURCES:.c=.o)
 
 OSMESA_DRIVER_OBJECTS = $(OSMESA_DRIVER_SOURCES:.c=.o)