--- compcache-0.5_pre1.ebuild
+++ home/gentoo/various/portage/sys-fs/compcache/compcache-0.5_pre1.ebuild
@@ -24,6 +24,16 @@
 	lzo1x_decompress(compcache:${S}:${S}/sub-projects/compression/lzo-kmod)
 	xvmalloc(:${S}:${S}/sub-projects/allocators/xvmalloc-kmod)"
 
+BUILD_PARAMS='KV_OUT_DIR="${KV_OUT_DIR}"'
+
+src_unpack() {
+	unpack $A
+	sed -i -e 's#/lib/modules/$(shell uname -r)/build#"$(KV_OUT_DIR)"#' \
+		"${S}/Makefile" \
+		"${S}/sub-projects/compression/lzo-kmod/Makefile" \
+		"${S}/sub-projects/allocators/xvmalloc-kmod/Makefile"
+}
+
 src_install(){
 	linux-mod_src_install