From: Mike Frysinger <vapier@gentoo.org>
Date: Sun, 29 Mar 2015 19:17:05 +0000 (+0000)
Subject: Add USE=cilk to control support for the Cilk Plus language.
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=214a9639e06b35170a56c9ada1db13c072fcab58;p=gentoo.git

Add USE=cilk to control support for the Cilk Plus language.
---

diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index ecd160aed674..e9550cdc8341 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -1,6 +1,6 @@
 # Copyright 1999-2015 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain.eclass,v 1.659 2015/03/29 18:30:34 vapier Exp $
+# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain.eclass,v 1.660 2015/03/29 19:17:05 vapier Exp $
 
 # Maintainer: Toolchain Ninjas <toolchain@gentoo.org>
 
@@ -151,6 +151,7 @@ if [[ ${PN} != "kgcc64" && ${PN} != gcc-* ]] ; then
 	# versions which we dropped.  Since graphite was also experimental in
 	# the older versions, we don't want to bother supporting it.  #448024
 	tc_version_is_at_least 4.8 && IUSE+=" graphite" IUSE_DEF+=( sanitize )
+	tc_version_is_at_least 4.9 && IUSE+=" cilk"
 fi
 
 [[ ${EAPI:-0} != 0 ]] && IUSE_DEF=( "${IUSE_DEF[@]/#/+}" )
@@ -1165,7 +1166,10 @@ toolchain_src_configure() {
 			fi
 			confgcc+=( --disable-libssp )
 		fi
+	fi
 
+	if in_iuse cilk ; then
+		confgcc+=( $(use_enable cilk libcilkrts) )
 	fi
 
 	# newer gcc's come with libquadmath, but only fortran uses