Work around regression in glibc 2.22: request that glibc provides the correct

prototypes for <string.h> functions that are converted into overload sets in
C++. This matches the existing workaround in <wchar.h>.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@260570 91177308-0d34-0410-b5e6-96231b3b80d8

include/string.h

@@ -58,6 +58,10 @@ size_t strlen(const char* s);
 #pragma GCC system_header
 #endif
 
+#ifdef __cplusplus
+#define __CORRECT_ISO_CPP_STRING_H_PROTO
+#endif
+
 #include_next <string.h>
 
 // MSVCRT, GNU libc and its derivates already have the correct prototype in