From 5086fbc459a1ea6ab8a9dc411235811fb5345388 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jan=20R=C4=99korajski?= <baggins@pld-linux.org>
Date: Sat, 19 Aug 2017 10:22:35 +0200
Subject: [PATCH] - added clang bcond (works for me)

---
 firefox.spec | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/firefox.spec b/firefox.spec
index df6ea82..62c991b 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -10,6 +10,7 @@
 # - disabled shared_js - https://bugzilla.mozilla.org/show_bug.cgi?id=1039964
 %bcond_with	shared_js	# shared libmozjs library [broken]
 %bcond_without	system_icu	# build without system ICU
+%bcond_with	clang		# build using Clang/LLVM
 
 # On updating version, grab CVE links from:
 # https://www.mozilla.org/security/known-vulnerabilities/firefox.html
@@ -213,8 +214,13 @@ cp -p %{_datadir}/automake/config.* build/autoconf
 cat << 'EOF' > .mozconfig
 . $topsrcdir/browser/config/mozconfig
 
+%if %{with clang}
+export CC="clang"
+export CXX="clang++"
+%else
 export CC="%{__cc}"
 export CXX="%{__cxx}"
+%endif
 export CFLAGS="%{rpmcflags} -D_FILE_OFFSET_BITS=64"
 export CXXFLAGS="%{rpmcxxflags} -D_FILE_OFFSET_BITS=64"
 
-- 
2.44.0