Fix compilation with mingw-w64.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155904 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/Builtins.def b/include/clang/Basic/Builtins.def
index 3bebfa3..89b31e8 100644
--- a/include/clang/Basic/Builtins.def
+++ b/include/clang/Basic/Builtins.def
@@ -725,6 +725,10 @@
LIBBUILTIN(index, "c*cC*i", "f", "strings.h", ALL_LANGUAGES)
LIBBUILTIN(rindex, "c*cC*i", "f", "strings.h", ALL_LANGUAGES)
LIBBUILTIN(bzero, "vv*z", "f", "strings.h", ALL_LANGUAGES)
+// In some systems str[n]casejmp is a macro that expands to _str[n]icmp.
+// We undefine then here to avoid wrong name.
+#undef strcasecmp
+#undef strncasecmp
LIBBUILTIN(strcasecmp, "icC*cC*", "f", "strings.h", ALL_LANGUAGES)
LIBBUILTIN(strncasecmp, "icC*cC*z", "f", "strings.h", ALL_LANGUAGES)
// POSIX unistd.h
