OSX/scons: for completeness, added WITH_BF_OPENMP switch

SConstruct

@@ -410,6 +410,7 @@ if env['OURPLATFORM']=='darwin':
 
     #Defaults openMP to true if compiler handles it ( only gcc 4.6.1 and newer )
     # if your compiler does not have accurate suffix you may have to enable it by hand !
+    if env['WITH_BF_OPENMP'] == 1:
         if env['CC'][:-2].endswith('4.6') or env['CC'][:-2].endswith('4.8'):
             env['WITH_BF_OPENMP'] = 1  # multithreading for fluids, cloth, sculpt and smoke
         else:

build_files/scons/config/darwin-config.py

@@ -211,6 +211,9 @@ BF_CYCLES_CUDA_BINARIES_ARCH = ['sm_20', 'sm_21', 'sm_30', 'sm_35']
 #Freestyle
 WITH_BF_FREESTYLE = True
 
+#OpenMP ( will be checked for compiler support and turned off eventually )
+WITH_BF_OPENMP = True
+
 #Ray trace optimization
 WITH_BF_RAYOPTIMIZATION = True
 BF_RAYOPTIMIZATION_SSE_FLAGS = []