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| X-HELO: | lb1-smtp-cloud8.xs4all.net |
| Date: | Sun, 12 May 2019 21:52:54 +0200 |
| Message-ID: | <5505261f3571c3615ec80146a27134da@smtp-cloud8.xs4all.net> |
| From: | Houder <houder AT xs4all DOT nl> |
| Reply-To: | cygwin AT cygwin DOT com |
| To: | cygwin AT cygwin DOT com |
| Subject: | Re: Why is __unix__ defined, and not __WINDOWS__ ? |
| References: | <5fbb6229-da17-c056-19b9-9819c684a8ad AT agner DOT org> |
| In-Reply-to: | <5fbb6229-da17-c056-19b9-9819c684a8ad@agner.org> |
| User-Agent: | mua.awk 0.99 |
On Sun, 12 May 2019 20:22:36, Agner Fog wrote: > I have noticed that the gcc and clang compilers have defined the > preprocessing macro __unix__, but not __WINDOWS__, _WIN32, or _WIN64 > when compiling a windows executable. > > Why is this? > > A C/C++ program will check for these macros if it wants to know which > operating system you are compiling for, and this will give the wrong result. ????? (or: I dont quite follow your drift) Henri 64-@@ x86_64-w64-mingw32-gcc -dM -E - < /dev/null | grep -i win #define _WIN32 1 #define _WIN64 1 #define __WINT_MAX__ 0xffff #define __WINT_MIN__ 0 #define __WIN32 1 #define __WIN64 1 #define __WINNT 1 #define __WINNT__ 1 #define __WIN32__ 1 #define __SIZEOF_WINT_T__ 2 #define WIN32 1 #define WIN64 1 #define __WINT_TYPE__ short unsigned int #define __WINT_WIDTH__ 16 #define WINNT 1 #define __WIN64__ 1 64-@@ x86_64-w64-mingw32-g++ -dM -E -x c++ - < /dev/null | grep -i win #define _WIN32 1 #define _WIN64 1 #define __WINT_MAX__ 0xffff #define __WINT_MIN__ 0 #define __WIN32 1 #define __WIN64 1 #define __WINNT 1 #define __WINNT__ 1 #define __WIN32__ 1 #define __SIZEOF_WINT_T__ 2 #define WIN32 1 #define WIN64 1 #define __WINT_TYPE__ short unsigned int #define __WINT_WIDTH__ 16 #define WINNT 1 #define __WIN64__ 1 ===== -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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