update linux-fbdev config
diff --git a/configs/linux-fbdev b/configs/linux-fbdev
index 0b03c33..7d3bdc1 100644
--- a/configs/linux-fbdev
+++ b/configs/linux-fbdev
@@ -4,12 +4,12 @@
 
 CONFIG_NAME = linux-fbdev
 
-CFLAGS = -O3 -ffast-math -ansi -pedantic -fPIC -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -DPTHREADS -DUSE_GLFBDEV_DRIVER
+CFLAGS += -DUSE_GLFBDEV_DRIVER
 
 # Work around aliasing bugs - developers should comment this out
 CFLAGS += -fno-strict-aliasing
 
-SRC_DIRS = gallium mesa glu glut/fbdev glew
+SRC_DIRS += glut/fbdev
 DRIVER_DIRS = fbdev osmesa
 PROGRAM_DIRS = fbdev demos redbook samples