From b28e998a84721f1334b58105516de0bb16c71eeb Mon Sep 17 00:00:00 2001
From: theoreticalbts <theoreticalbts@users.noreply.github.com>
Date: Thu, 29 Sep 2016 14:11:30 -0400
Subject: [PATCH] Allow CPP_STANDARD to be overridden

---
 CMakeLists.txt | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c8da424..2cf93d5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -274,6 +274,10 @@ if(WIN32)
 endif(WIN32)
 # end readline stuff
 
+if( NOT CPP_STANDARD )
+  set( CPP_STANDARD, "-std=c++11" )
+endif()
+
 IF(WIN32)
   target_compile_definitions(fc PUBLIC WIN32 NOMINMAX _WIN32_WINNT=0x0501 _CRT_SECURE_NO_WARNINGS
     _SCL_SERCURE_NO_WARNINGS
@@ -295,12 +299,12 @@ ELSE()
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -Wall")
 
   IF(APPLE)
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++ -Wall")
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CPP_STANDARD} -stdlib=libc++ -Wall")
   ELSE()
     if( NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" )
-      target_compile_options(fc PUBLIC -std=c++11 -Wall -fnon-call-exceptions)
+      target_compile_options(fc PUBLIC ${CPP_STANDARD} -Wall -fnon-call-exceptions)
     endif()
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -fnon-call-exceptions")
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CPP_STANDARD} -Wall -fnon-call-exceptions")
   ENDIF()
 ENDIF()