Re: [Mingw-users] errno and ctype problem

[Tor L. <tm...@ik...>]

Max Lynch writes:

 > I am trying to get a library (libgpod) to compile on windows
 > without cygwin, using mingw.  I've installed libgw32c and all the
 > headers,

Avoid libgw32c unless you are absolutely sure you need it. If you do
use it, ask for help related to it on the gnuwin32 mailing list, not
here.

 > libs/itdb_itunesdb.o: In function `wcontents_write':C:/msys/1.0/home/Max/libgpod-0.4.0/libgpod-0.4.0/src/itdb_itunesdb.c:4118: undefined reference to `errno'

In the normal mingw headers, i.e. in the Microsoft C library, errno is
a macro that expands to a function call. See the mingw <errno.h>. If
you include <errno.h>, everything should work OK. Don't declare errno
in your code explicitly with something like "extern int errno;", that
won't work.

Whether libgw32c overrides errno somehow, I don't know.

About the ctype problem, no idea.

--tml