diff --git a/common.mak b/common.mak
index ff25cf6356..36e5fe8376 100644
--- a/common.mak
+++ b/common.mak
@@ -15,6 +15,7 @@ CFLAGS+=-p
 LDFLAGS+=-p
 endif
 
+#FIXME: This should be in configure/config.mak
 ifeq ($(TARGET_ARCH_SPARC64),yes)
 CFLAGS+= -mcpu=ultrasparc -mtune=ultrasparc
 endif