Christian Biesinger wrote:
> Thanks for your quick patches! This solves the problem for me.

Thanks for the confirmation. Some other patches are needed for the same
thing to work on Cygwin and mingw. Will push them once Savannah is back online.


2019-11-24  Bruno Haible  <bruno@clisp.org>

	Fix errors in C++ mode on Cygwin.
	* lib/sys_wait.in.h (waitpid): Use _GL_CXXALIAS_SYS_CAST instead of
	_GL_CXXALIAS_SYS.

	windows-timedmutex: Fix errors in C++ mode on mingw.
	* lib/windows-timedmutex.h: Add closing brace.

	iswctype: Fix errors in C++ mode on mingw.
	* lib/wctype.in.h (rpl_iswctype): Override if GNULIB_OVERRIDES_WINT_T
	is 1.
	* lib/iswctype.c (iswctype): Add another implementation, for the
	GNULIB_defined_wint_t case.
	* modules/iswctype (configure.ac): Compile iswctype.c also if
	GNULIB_OVERRIDES_WINT_T is 1.

	sys_time: Fix errors in C++ mode on mingw.
	* lib/sys_time.in.h (timeval): Restore the redirection
	'#define timeval rpl_timeval', for when the symbol timeval is being used
	outside the 'gnulib' namespace.
	* lib/sys_select.in.h (select): In C++, write 'timeval', not
	'struct timeval'.

	Fix errors in C++ mode on mingw.
	* lib/arpa_inet.in.h (inet_ntop, inet_pton): Use _GL_CXXALIAS_SYS_CAST
	instead of _GL_CXXALIAS_SYS.
	* lib/signal.in.h (pthread_sigmask): Likewise.
	* lib/spawn.in.h (posix_spawn_file_actions_addopen,
	posix_spawn_file_actions_addclose, posix_spawn_file_actions_adddup2):
	Likewise.
	* lib/wchar.in.h (btowc): Likewise.