From 50af655fe9fe40debe7f3d36cf351c138241fdfc Mon Sep 17 00:00:00 2001
From: Bim Overbohm <bim.overbohm@googlemail.com>
Date: Wed, 22 May 2013 19:15:44 +0200
Subject: [PATCH] Check for GCC 4.7 or above

To prevent compilation errors beforehand.
---
 CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1fc96327c..be6c2f3bf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -57,6 +57,12 @@ if(MSVC)
 endif()
 
 if(CMAKE_COMPILER_IS_GNUCXX)
+    #check for GCC 4.7+
+    execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
+    if (GCC_VERSION VERSION_LESS 4.7)
+            message(SEND_ERROR "You need at least GCC 4.7 to compile EmulationStation!")
+    endif()
+    #set up compiler flags for GCC
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -O2") #support C++11 for std::, optimize
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s")  #strip binary
 endif()