Fix MSYS+MINGW

[carlo_bramini]

Hello,
I fixed the compilation of libssh2 under MSYS+MINGW, now it works without problems.
The compilation under MSVC works too.
List of changes:

)configure.in
detect mingw32 (or mingw64) compiler, add some CFLAGS and detect the presence of W32API.
select() was not found at configure time because it is declared with PASCAL calling convention, so its name is decorated with "@". Normally such conditions must be fixed by declaring correct prototype, or including good include file (i.e. winsock2.h).

)scp_nonblock.c
)scp_write_nonblock.c
)sftp_RW_nonblock.c
)sftp_mkdir_nonblock.c
)sftp_nonblock.c
)sftp_write_nonblock.c
)sftpdir_nonblock.c
fixed nonblocking examples for Win32/Win64.

)libssh2_priv.h
Declare some useful stuff, mainly moved from libssh2_config.h under /win32 directory

)libssh2_config.h
Removed some stuff for fixing compilation under MSVC

Sincerely,

Carlo Bramini.

[bagder]

Thanks for your work, can you please update your patch against the current CVS as some changes now makes your patch not apply cleanly any more?

[carlo_bramini]

Fix for this bug.

[carlo_bramini]

I updated my patch to the lastest CVS revision.
I hope that it will be fine and I hope to see a new version with mingw+msys support very soon!

Sincerely,

Carlo Bramini
File Added: libssh2.txt

[bagder]

Thanks, a few remarks though:

1) I committed the fixes for the examples just now

2) It seems you've reverted some win32 changes when you removed newly fixed code from win32/libssh2_config.h and instead insert older-looking code into src/libssh2_priv.h

3) Your configure changes make configure break for me on Linux that's supposedly unreleated to mingw/msys.

[carlo_bramini]

Fix for this bug.

[carlo_bramini]

Hello,
1) thanks!
2) I'm very sorry, it looks like I did the update with too much speed and without enough attention. In the new patch I did it correctly. I also added a little comment into win32/libssh2_config.h about the reason of WINSOCK_VERSION macro define.
3) I moved AC_CHECK_HEADERS macro from the *-mingw* case to the bottom part with all other include checks. I do not know why it happened, but that was the cause of the problem.
I also fixed the test on select() function into ws2_32 with $ac_cv_func_select, now the test is not done if select() has been already found.
Before making this new patch I configured and compiled libssh2 with mingw, MSVC, cygwin and colinux (with Debian 4.0r3) and now everything has been completed successfully.

Sorry for previous trouble...

Sincerely,

Carlo Bramini.
File Added: libssh2_2.txt

[bagder]

Thanks, this was applied and committed just now!