Windows: Workaround missing includes in MinGW-w64 < 4

The MinGW-w64 version we have on our Travis build environment (Ubuntu 12.04,
mingw-w64 2.0.1, gcc 4.6) is old and has some missing includes in the
dependencies of the `tcpmib.h` header [0] [1] [2].
Those were not triggered before 6323779596
probably due to conflicting WINVER definitions which prevented triggering the code
specific to >= 0x0600 (Vista). We ensure it won't be triggered by defining the
_WIN32_WINNT macro to Windows XP compatibility.
This commit is contained in:
Rémi Verschelde 2017-01-09 12:10:25 +01:00 committed by GitHub
parent 4163be67a1
commit b24fe6879a

View file

@ -42,7 +42,19 @@
#include <windows.h>
#include <stdio.h>
#ifndef UWP_ENABLED
#include <iphlpapi.h>
#if defined(__MINGW32__ ) && (!defined(__MINGW64_VERSION_MAJOR) || __MINGW64_VERSION_MAJOR < 4)
// MinGW-w64 on Ubuntu 12.04 (our Travis build env) has bugs in this code where
// some includes are missing in dependencies of iphlpapi.h for WINVER >= 0x0600 (Vista).
// We don't use this Vista code for now, so working it around by disabling it.
// MinGW-w64 >= 4.0 seems to be better judging by its headers.
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0501 // Windows XP, disable Vista API
#include <iphlpapi.h>
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0600 // Reenable Vista API
#else
#include <iphlpapi.h>
#endif // MINGW hack
#endif
#else
#include <netdb.h>