From acf087de92592a27fa01c03ccf876747808dd544 Mon Sep 17 00:00:00 2001
From: Alex Zolotarev <deathbaba@gmail.com>
Date: Thu, 6 Oct 2011 00:56:32 +0300
Subject: [PATCH] [gcc][mac] Fixed unsupported compiler flag

---
 common.pri | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/common.pri b/common.pri
index 5d5e8870d9..ad3429d442 100644
--- a/common.pri
+++ b/common.pri
@@ -102,8 +102,10 @@ win32-msvc2010 {
 }
 
 unix|win32-g++ {
-  QMAKE_CXXFLAGS_WARN_ON *= -Wno-sign-compare -Wno-strict-aliasing -Wconversion -Wno-unused-parameter \
-                            -Wno-sign-conversion
+  QMAKE_CXXFLAGS_WARN_ON *= -Wno-sign-compare -Wno-strict-aliasing -Wconversion -Wno-unused-parameter
+  !*-g++42 {
+    QMAKE_CXXFLAGS_WARN_ON *= -Wno-sign-conversion
+  }
   # experimental
   QMAKE_CFLAGS_RELEASE -= -O2
   QMAKE_CFLAGS_RELEASE += -O3