From d4bf7a3853dab12c11cbfc8088fd76f548a8d017 Mon Sep 17 00:00:00 2001
From: Patrik Hagglund <patrik.h.hagglund@ericsson.com>
Date: Tue, 24 Sep 2013 11:38:45 +0000
Subject: [PATCH] Remove error output from configure if CFLAGS is set (r174313).

This fixes PR16724.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191289 91177308-0d34-0410-b5e6-96231b3b80d8

https://github.com/llvm-mirror/llvm/commit/d4bf7a3853dab12c11cbfc8088fd76f548a8d017

Upstream-Status: Backport

Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
---
 autoconf/configure.ac | 4 ++--
 configure             | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index f9c365c..45f2fe4 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -61,8 +61,8 @@ fi
 
 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
-${CFLAGS=}
-${CXXFLAGS=}
+: ${CFLAGS=}
+: ${CXXFLAGS=}
 
 dnl We need to check for the compiler up here to avoid anything else
 dnl starting with a different one.
diff --git a/configure b/configure
index f3a6594..9090cda 100755
--- a/configure
+++ b/configure
@@ -1992,8 +1992,8 @@ echo "$as_me: error: Already configured in ${srcdir}" >&2;}
   fi
 fi
 
-${CFLAGS=}
-${CXXFLAGS=}
+: ${CFLAGS=}
+: ${CXXFLAGS=}
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
-- 
1.9.1