From 4594781d749552f4f28aba92ed8e7c3d74a6da52 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Fri, 20 Jul 2012 17:07:41 +0200
Subject: [PATCH] Warn about float -> double promotion.

---
 src/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 880645104..fa67b9547 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,5 +1,9 @@
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wold-style-cast -pedantic -std=c++0x -fvisibility=hidden -fno-rtti -fno-exceptions")
 
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wdouble-promotion")
+endif()
+
 # If targeting GLES, save it into configuration header
 if(TARGET_GLES)
     set(MAGNUM_TARGET_GLES 1)