ccc: Pass -f[no-]math-errno to clang.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64709 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/ccc/ccclib/ToolChain.py b/tools/ccc/ccclib/ToolChain.py
index 2fd500c..f2f22a0 100644
--- a/tools/ccc/ccclib/ToolChain.py
+++ b/tools/ccc/ccclib/ToolChain.py
@@ -76,6 +76,9 @@
 
         return True
         
+    def isMathErrnoDefault(self):
+        return True
+
 class Darwin_X86_ToolChain(ToolChain):
     def __init__(self, driver, darwinVersion, gccVersion, archName):
         super(Darwin_X86_ToolChain, self).__init__(driver)
@@ -224,6 +227,9 @@
 
         return al
 
+    def isMathErrnoDefault(self):
+        return False
+
 class Generic_GCC_ToolChain(ToolChain):
     """Generic_GCC_ToolChain - A tool chain using the 'gcc' command to
     perform all subcommands; this relies on gcc translating the