From 36865df46389e5f0b8055433b46d6e14d2ab4378 Mon Sep 17 00:00:00 2001
From: Lei Zhang <zhanglei.april@gmail.com>
Date: Fri, 30 Sep 2016 18:28:28 +0800
Subject: sys-libs/libcxxabi: fix a compile error on musl

Closes: https://github.com/gentoo/gentoo/pull/2491
Package-Manager: portage-2.3.1
---
 sys-libs/libcxxabi/libcxxabi-3.9.0.ebuild | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'sys-libs')

diff --git a/sys-libs/libcxxabi/libcxxabi-3.9.0.ebuild b/sys-libs/libcxxabi/libcxxabi-3.9.0.ebuild
index 48c45199c980..2d5c58e671a7 100644
--- a/sys-libs/libcxxabi/libcxxabi-3.9.0.ebuild
+++ b/sys-libs/libcxxabi/libcxxabi-3.9.0.ebuild
@@ -18,7 +18,7 @@ SRC_URI="http://llvm.org/releases/${PV}/${P}.src.tar.xz
 LICENSE="|| ( UoI-NCSA MIT )"
 SLOT="0"
 KEYWORDS="~amd64 ~x86"
-IUSE="libunwind +static-libs test"
+IUSE="elibc_musl libunwind +static-libs test"
 
 RDEPEND="
 	libunwind? (
@@ -79,6 +79,9 @@ multilib_src_configure() {
 			-DLIT_COMMAND="${EPREFIX}"/usr/bin/lit
 		)
 	fi
+	if use elibc_musl; then
+		local -x CPPFLAGS="${CPPFLAGS} -D_LIBCPP_HAS_MUSL_LIBC=1"
+	fi
 	cmake-utils_src_configure
 }
 
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