+++ mk/os-Gentoo.mk
@@ -0,0 +1,9 @@
+# Copyright (c) 2008 Roy Marples <roy@marples.name>
+# Released under the 2-clause BSD license.
+
+SFX=           .Linux.in
+PKG_PREFIX?=   /usr
+UDEVDIR?=      $(shell pkg-config udev --variable=udevdir)
+
+CPPFLAGS+=     -D_BSD_SOURCE -D_XOPEN_SOURCE=700
+LIBDL=         -Wl,-Bdynamic -ldl