Merge pull request #430 from saucecontrol/sse-fix

Fix SSE detection logic

CMakeLists.txt

@@ -44,14 +44,17 @@ if(CMAKE_COMPILER_IS_GNUCXX OR ${CMAKE_CXX_COMPILER_ID} MATCHES Clang)
   add_definitions(-Wall)
 endif()
 
+set(DISABLE_SSE ON)
 check_c_source_compiles(
-    "#if !defined(__x86_64) && !defined(__i386__) \\
-    && !defined(_M_IX86) && !defined(_M_AMD64)
-    #error not x86
-    #endif
-    int main(){return 0;}"
-    HAVE_X86)
-set(DISABLE_SSE "Disable SSE optimizations" ${HAVE_X86})
+  "#if !defined(__x86_64) && !defined(__i386__) \
+  && !defined(_M_IX86) && !defined(_M_AMD64)
+  #error not x86
+  #endif
+  int main(){return 0;}"
+  HAVE_X86)
+if (HAVE_X86)
+  set(DISABLE_SSE OFF)
+endif()
 
 option(BUILD_SHARED_LIBS "Build shared library" ON)
 if(NOT BUILD_SHARED_LIBS)