[Mingw-w64-public] Detect mingw

[Алексей Павлов]

How can I detect in program that toolchain use mingw-w64 not original mingw?

[Antony Riakiotakis]

Usually __MINGW64__ is defined so you can check for that in the source.

[Kai Tietz]

Post by Antony Riakiotakis
Usually __MINGW64__ is defined so you can check for that in the source.

First, that define is only set for 64-bit mode, but mingw-w64 also
supports 32-bit (old mingw.org) mode. Secondly that define is
provided by the compiler and isn't runtime-specific at all.
As long as programmer of an application didn't provided a function to
answer your question, you won't be able to detect it that easy. There
are ways to find out by inspecting startup-code, which is slightly
different between both ventures.

Regards,
Kai

[Ruben Van Boxem]

Post by Kai Tietz

Post by Antony Riakiotakis
Usually __MINGW64__ is defined so you can check for that in the source.

First, that define is only set for 64-bit mode, but mingw-w64 also
supports 32-bit (old mingw.org) mode. Secondly that define is
provided by the compiler and isn't runtime-specific at all.
As long as programmer of an application didn't provided a function to
answer your question, you won't be able to detect it that easy. There
are ways to find out by inspecting startup-code, which is slightly
different between both ventures.

Something I use when I need it:

#ifdef __MINGW32__ // on some form of MinGW toolchain
#include <_mingw.h> // MinGW internal header present for all MinGW variants
#ifdef __MINGW64_VERSION_MAJOR
// We're compiling with MinGW-w64 32 or 64-bit
#else
// We're compiling with MinGW.org
#endif
#endif

See here:
http://www.mail-archive.com/mingw-w64-***@lists.sourceforge.net/msg00638.html
__MINGW64__ only really signifies x64 Windows and MinGW. I bet that if
MinGW.org ever come with a 64-bit variant (not likely), they'd define this
for consistency (just as MinGW-w64 does).

If you need to detect bitness as well, use the builtin GCC defines for
architecture: http://sourceforge.net/p/predef/wiki/Architectures/

Ruben

Post by Kai Tietz
Regards,
Kai
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[Алексей Павлов]

Thanks for answers! I need this because support for wmihelper in Qt5 for
mingw-w64

Post by Ruben Van Boxem

Post by Kai Tietz

Post by Antony Riakiotakis
Usually __MINGW64__ is defined so you can check for that in the source.

First, that define is only set for 64-bit mode, but mingw-w64 also
supports 32-bit (old mingw.org) mode. Secondly that define is
provided by the compiler and isn't runtime-specific at all.
As long as programmer of an application didn't provided a function to
answer your question, you won't be able to detect it that easy. There
are ways to find out by inspecting startup-code, which is slightly
different between both ventures.

#ifdef __MINGW32__ // on some form of MinGW toolchain
#include <_mingw.h> // MinGW internal header present for all MinGW variants
#ifdef __MINGW64_VERSION_MAJOR
// We're compiling with MinGW-w64 32 or 64-bit
#else
// We're compiling with MinGW.org
#endif
#endif
__MINGW64__ only really signifies x64 Windows and MinGW. I bet that if
MinGW.org ever come with a 64-bit variant (not likely), they'd define this
for consistency (just as MinGW-w64 does).
If you need to detect bitness as well, use the builtin GCC defines for
architecture: http://sourceforge.net/p/predef/wiki/Architectures/
Ruben

Post by Kai Tietz
Regards,
Kai
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what is happening inside your Ruby, Python, PHP, Java, and .NET app
Try New Relic at no cost today and get our sweet Data Nerd shirt too!
http://p.sf.net/sfu/newrelic-dev2dev
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https://lists.sourceforge.net/lists/listinfo/mingw-w64-public

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[Earnie Boyd]

Post by Ruben Van Boxem
__MINGW64__ only really signifies x64 Windows and MinGW. I bet that if
MinGW.org ever come with a 64-bit variant (not likely), they'd define this
for consistency (just as MinGW-w64 does).

Since it is defined by the compiler, of course a MinGW.org provided
64-bit compiler would define it. The "(not likely)" is not likely
true. ;p