--- gentoo/usr/portage/app-text/tree/tree-1.6.0-r1.ebuild	2012-08-19 22:06:48.000000000 -0400
+++ gentoo/usr/local/portage/my-prefix/app-text/tree/tree-1.6.0-r1.ebuild	2012-09-29 15:14:00.000000000 -0400
@@ -11,7 +11,7 @@
 
 LICENSE="GPL-2"
 SLOT="0"
-KEYWORDS="alpha amd64 arm hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86 ~amd64-linux ~x86-linux ~x86-macos"
+KEYWORDS="~amd64-linux ~x86-linux ~x64-macos"
 IUSE=""
 
 src_prepare() {
@@ -22,6 +22,7 @@
 }
 
 src_compile() {
+	[[ "${CHOST}" == *-darwin* ]] && epatch "${FILESDIR}"/tree-Makefile.patch
 	append-lfs-flags
 	emake \
 		CC="$(tc-getCC)" \