fix some FreeBSD issues
diff --git a/configs/freebsd-dri b/configs/freebsd-dri
index 402883d..5a9310a 100644
--- a/configs/freebsd-dri
+++ b/configs/freebsd-dri
@@ -15,7 +15,7 @@
X11_INCLUDES = -I/usr/X11R6/include
DEFINES = -DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER \
-DGLX_DIRECT_RENDERING -DGLX_INDIRECT_RENDERING \
- -DHAVE_ALIAS -DHAVE_POSIX_MEMALIGN
+ -DHAVE_ALIAS
CFLAGS = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) -Wmissing-prototypes -std=c99 -Wundef -ffast-math \
$(ASM_FLAGS) $(X11_INCLUDES) $(DEFINES)