-EXTRA_CFLAGS = -I@MODDIR@/zfs/include
-EXTRA_CFLAGS += -I@MODDIR@/zcommon/include
-EXTRA_CFLAGS += -I@MODDIR@/avl/include
-EXTRA_CFLAGS += -I@MODDIR@/nvpair/include
-EXTRA_CFLAGS += -I@MODDIR@/unicode/include
-EXTRA_CFLAGS += -I@MODDIR@/zpios/include
-EXTRA_CFLAGS += @KERNELCPPFLAGS@
+EXTRA_CFLAGS = @KERNELCPPFLAGS@
+EXTRA_CFLAGS += -include @SPL_OBJ@/spl_config.h
+EXTRA_CFLAGS += -include @abs_top_builddir@/zfs_config.h
+EXTRA_CFLAGS += -I@abs_top_srcdir@/include -I@SPL@/include -I@SPL@