From 6709236699a6ddac0d8ab6b3ffc2ba5faf8315c5 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Thu, 26 Dec 2013 05:45:13 +0100
Subject: Check if the compiler supports -mpclmul

---
 cmake/checks.cmake | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'cmake')

diff --git a/cmake/checks.cmake b/cmake/checks.cmake
index cd80856..225c443 100644
--- a/cmake/checks.cmake
+++ b/cmake/checks.cmake
@@ -1,9 +1,13 @@
+include(CheckCCompilerFlag)
 include(CheckCSourceCompiles)
 include(CheckPrototypeDefinition)
 include(CheckSymbolExists)
 include(CheckTypeSize)
 set(CMAKE_REQUIRED_DEFINITIONS "-D_GNU_SOURCE")
 
+if(ARCH_X86 OR ARCH_X86_64)
+  check_c_compiler_flag("-mpclmul" HAVE_PCLMUL)
+endif(ARCH_X86 OR ARCH_X86_64)
 
 check_c_source_compiles("
 #include <sys/types.h>
-- 
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