From: Michał Górny <mgorny@gentoo.org>
Date: Sun, 9 Jul 2017 08:23:27 +0000 (+0200)
Subject: sys-libs/compiler-rt: Warn when not using clang
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=7ef3504c4fb36c875c9a58bdde62b5f8443e3bf7;p=gentoo.git

sys-libs/compiler-rt: Warn when not using clang
---

diff --git a/sys-libs/compiler-rt/compiler-rt-4.0.1.ebuild b/sys-libs/compiler-rt/compiler-rt-4.0.1.ebuild
index 98d9f66212bc..bc1e65eb314f 100644
--- a/sys-libs/compiler-rt/compiler-rt-4.0.1.ebuild
+++ b/sys-libs/compiler-rt/compiler-rt-4.0.1.ebuild
@@ -34,6 +34,13 @@ S=${WORKDIR}/${P/_/}.src
 # least intrusive of all
 CMAKE_BUILD_TYPE=RelWithDebInfo
 
+pkg_pretend() {
+	if ! use clang && ! tc-is-clang; then
+		ewarn "Building using a compiler other than clang may result in broken atomics"
+		ewarn "library. Enable USE=clang unless you have a very good reason not to."
+	fi
+}
+
 pkg_setup() {
 	llvm_pkg_setup
 	python-any-r1_pkg_setup
diff --git a/sys-libs/compiler-rt/compiler-rt-9999.ebuild b/sys-libs/compiler-rt/compiler-rt-9999.ebuild
index ffd1e9eddb3f..03c34d45531a 100644
--- a/sys-libs/compiler-rt/compiler-rt-9999.ebuild
+++ b/sys-libs/compiler-rt/compiler-rt-9999.ebuild
@@ -35,6 +35,13 @@ DEPEND="
 # least intrusive of all
 CMAKE_BUILD_TYPE=RelWithDebInfo
 
+pkg_pretend() {
+	if ! use clang && ! tc-is-clang; then
+		ewarn "Building using a compiler other than clang may result in broken atomics"
+		ewarn "library. Enable USE=clang unless you have a very good reason not to."
+	fi
+}
+
 pkg_setup() {
 	llvm_pkg_setup
 	python-any-r1_pkg_setup