From e51f55d7ae7bab9483df6fd4448df4237ab740f6 Mon Sep 17 00:00:00 2001
From: Igor Canadi <icanadi@fb.com>
Date: Mon, 18 Nov 2013 20:18:45 -0800
Subject: [PATCH] Use gcc4.7.1 on CentOS 5.2

Summary:
For some reason, snappy on CentOS 5.2 when compiled with gcc 4.8.1 segfaults on strcmp. (!?)

Add an if to compile with gcc4.7.1 if you're compiling on CentOS 5.2. Please update your devservers to CentOS 6.

Test Plan:
make clean; make check
on both my devserver (CentOS 6) and dhruba's (CentOS 5.2)

Reviewers: dhruba, kailiu

Reviewed By: dhruba

CC: leveldb

Differential Revision: https://reviews.facebook.net/D14169
---
 build_tools/build_detect_platform | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/build_tools/build_detect_platform b/build_tools/build_detect_platform
index 073953dd4..ef446bf7e 100755
--- a/build_tools/build_detect_platform
+++ b/build_tools/build_detect_platform
@@ -46,7 +46,13 @@ COMMON_FLAGS="-DROCKSDB_PLATFORM_POSIX"
 if [ -d /mnt/gvfs/third-party -a -z "$CXX" ]; then
     FBCODE_BUILD="true"
     if [ -z "$USE_CLANG" ]; then
-        source $PWD/build_tools/fbcode.gcc481.sh
+        CENTOS_VERSION=`rpm -q --qf "%{VERSION}" \
+          $(rpm -q --whatprovides redhat-release)`
+        if [ "$CENTOS_VERSION" = "6" ]; then
+          source $PWD/build_tools/fbcode.gcc481.sh
+        else
+          source $PWD/build_tools/fbcode.gcc471.sh
+        fi
     else
         source $PWD/build_tools/fbcode.clang31.sh
     fi