--- Makefile.kernel	2004-06-11 10:31:20.000000000 +0900
+++ Makefile.kernel	2004-06-12 16:43:03.030768757 +0900
@@ -17,9 +17,7 @@
 
 INCLUDE := -I$(SRCROOT)
 
-EXTRA_CFLAGS := $(CC_OPTS) $(INCLUDE)
-EXTRA_CFLAGS += $(call vm_check_build, $(SRCROOT)/epoll.c,   -DVMW_HAVE_EPOLL, )
-EXTRA_CFLAGS += $(call vm_check_build, $(SRCROOT)/socket.c,  -DVMW_HAVE_SK_WMEM_ALLOC, )
+EXTRA_CFLAGS := $(CC_OPTS) $(INCLUDE) -DVMW_HAVE_EPOLL -DVMW_HAVE_SK_WMEM_ALLOC
 
 obj-m += $(DRIVER).o