From 95ea0ef43dfbcf2240a0ece70d2829ce63ab0dd3 Mon Sep 17 00:00:00 2001
From: worktycho <work.tycho@gmail.com>
Date: Fri, 7 Mar 2014 17:22:37 +0000
Subject: Fixed clang compile

---
 SetFlags.cmake | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'SetFlags.cmake')

diff --git a/SetFlags.cmake b/SetFlags.cmake
index a5bd3a0a2..6a8211fa2 100644
--- a/SetFlags.cmake
+++ b/SetFlags.cmake
@@ -184,8 +184,13 @@ macro(set_exe_flags)
 		string(REPLACE "-w" "" CMAKE_C_FLAGS_DEBUG     "${CMAKE_C_FLAGS_DEBUG}")
 		add_flags_cxx("-Wall -Wextra")
 		
-		#we support non-IEEE 754 fpus so can make no guarentees about error
+		# we support non-IEEE 754 fpus so can make no guarentees about error
 		add_flags_cxx("-ffast-math")
+		
+		# clang does not provide the __extern_always_inline macro and a part of libm depends on this when using fast-math
+		if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+			add_flags_cxx("-D__extern_always_inline=inline")
+		endif()
 	endif()
 
 endmacro()
-- 
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