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windows: use built-in _WIN32 macro to detect Windows

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Instead of `WIN32`.

The compiler defines `_WIN32`. Windows SDK headers or build env defines
`WIN32`, or we have to take care of it. The agreement seems to be that
`_WIN32` is the preferred practice here.

Minor downside is that CMake uses `WIN32` and we also adopted it in
`Makefile.mk`.

In public libssh2 headers we stick with accepting either `_WIN32` or
`WIN32` and define our own namespaced `LIBSSH2_WIN32` based on them.

grepping for `WIN32` remains useful to detect Windows-specific code.

Closes #1195
This commit is contained in:
Viktor Szakats
2023-09-29 08:43:40 +00:00
parent 4c241d5c65
commit 6fbc9505d8
33 changed files with 87 additions and 91 deletions
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6
example/sftp_nonblock.c
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@ -14,7 +14,7 @@
#include <libssh2.h>
#include <libssh2_sftp.h>
#ifdef WIN32
#ifdef _WIN32
#define write(f, b, c) write((f), (b), (unsigned int)(c))
#endif
@ -100,7 +100,7 @@ int main(int argc, char *argv[])
libssh2_struct_stat_size total = 0;
int spin = 0;
#ifdef WIN32
#ifdef _WIN32
WSADATA wsadata;
rc = WSAStartup(MAKEWORD(2, 0), &wsadata);
@ -288,7 +288,7 @@ shutdown:
if(sock != LIBSSH2_INVALID_SOCKET) {
shutdown(sock, 2);
#ifdef WIN32
#ifdef _WIN32
closesocket(sock);
#else
close(sock);