diff --git a/src/Makefile.am b/src/Makefile.am
index 8bafe87..81e6f51 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -23,7 +23,7 @@
 # -avoid-version prevents gratuitous .0.0.0 version numbers on the end
 # _ladir passes a dummy rpath to libtool so the thing will actually link
 # TODO: -nostdlib/-Bstatic/-lgcc platform magic, not installing the .a, etc.
-AM_CFLAGS = @XORG_CFLAGS@
+AM_CFLAGS = $(BASE_CFLAGS) $(XORG_CFLAGS)
 suncg6_drv_la_LTLIBRARIES = suncg6_drv.la
 suncg6_drv_la_LDFLAGS = -module -avoid-version
 suncg6_drv_ladir = @moduledir@/drivers