[Mingw-w64-public] strerror_s problem

[Ruben V. B. <van...@gm...>]

Dear list,

Using MinGW-w64 v2.0.7 and my 4.7.2 toolchain, I get a build failure in
LLVM related to strerror_s.
It performs a CMake check to see if the function is declared, and finds it
(I configured the headers with --enable-secure-api as always) so it defines
the config.h guard macro.

When the function is used in C++ code though, it is not found.

I reduced this to

 #include <string.h>

void f()
{
  strerror_s("bla",3,4);
}

which, when compiled as C++, gives the error of no strerror_s declared, but
when compiled as C, works fine.

This looks like a pure MinGW-w64 bug, what can I do to fix it?

Thanks,

Ruben