commit 74727f58290df9632b42aa5a2b0c1be11ab64ce4
author Sameer Agarwal <sameeragarwal@google.com> Thu Sep 19 10:03:03 2013 -0700
committer Sameer Agarwal <sameeragarwal@google.com> Thu Sep 19 16:24:56 2013 -0700
tree d44fc5940a2cc128e79eaba8331ee88716389e72
parent 11bf5ffb96f73a5da375628fb9a447527627496e

Fix two build errors.

1. Not set -march=native -mtune=native for GCC versions less than 4.2
2. Explicit cast in lapack.cc

Thanks to Dustin Lang for reporting this.

Change-Id: I71fbefa5f7db0188516f9f1dc044d7d5f374e2cd

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8cb4a7c..7bb4a39 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -600,7 +600,9 @@
   IF (CMAKE_COMPILER_IS_GNUCXX)
     # Linux
     IF (CMAKE_SYSTEM_NAME MATCHES "Linux")
-      SET (CERES_CXX_FLAGS "${CERES_CXX_FLAGS} -march=native -mtune=native")
+      IF (NOT GCC_VERSION VERSION_LESS 4.2)
+        SET (CERES_CXX_FLAGS "${CERES_CXX_FLAGS} -march=native -mtune=native")
+      ENDIF (NOT GCC_VERSION VERSION_LESS 4.2)
     ENDIF (CMAKE_SYSTEM_NAME MATCHES "Linux")
     # Mac OS X
     IF (CMAKE_SYSTEM_NAME MATCHES "Darwin")