https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108225
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |WONTFIX
--- Comment #29 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I think if you want to build for ancient versions < 0x0600 then you should
build a custom toolchain for that. Build the whole compiler with
--enable-cxx-flags="-O2 -g -D_WIN32_WINNT=0x0500" and that way libstdc++'s
configure will correctly detect at build time that you are from prehistoric
times. It will correctly disable uses of C99 stdlib.h and C++11 mutexes and
threads etc.
Building a compiler for modern Windows versions and expecting it to also
compile for ancient versions is not going to work. Treat the ancient versions
as a cross-compilation target and use a custom toolchain instead.
So I'm closing this again.
