Hi John,
Very nice work you did !
On Sun, 2008-02-24 at 09:23 +0000, john wrote:
> I'm now trying to tie up a few loose ends, and one thing I couldn't sort
> out was an error when trying to build the socket extensions for Ruby - one
> the functions that they use is h_errno; the code compiles cleanly, but
> when it comes to linking the final binary it falls over with an undefined
> reference to "__h_errno_location". I can't find this symbol anywhere.
Well, when you say "sockets" and "Windows" then you need to think
winsock. Combine this with the fact that "errno" is a posix thing which
Windows API doesn't support, and here we are.
That said, I'm sure we can get through this. Usually when people use
sockets/winsock, the better thing to do is to replace all use of errno
by the winsock equivalent WSAGetLastError().
An example of how to do such things is in the tools/errno directory of
our SVN : Pedro built a small errno emulation library there. It also
contains a function static char *strwinerror (char* buf, DWORD error)
which you can use as sample code to write something similar to the
gai_strerror function that you miss.
One more point : in our sources, there's also a gai_strerror function.
That's in the newlib part of our source tree; in the linux subdirectory.
This code doesn't get installed for CE; we probably need to fix netdb.h
so it doesn't publish this function. From your blog, it looks like ruby
comes with some of the same files (e.g. getaddrinfo.c is in
src/newlib/newlib/libc/sys/linux/net/getaddrinfo.c in our tree).
Danny
--
Danny Backx ; danny.backx - at - scarlet.be ; http://danny.backx.info
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