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Diffstat (limited to 'winsup/doc/how-programming.texinfo')
| -rw-r--r-- | winsup/doc/how-programming.texinfo | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/winsup/doc/how-programming.texinfo b/winsup/doc/how-programming.texinfo index d54ec3d..3ec161e 100644 --- a/winsup/doc/how-programming.texinfo +++ b/winsup/doc/how-programming.texinfo @@ -576,6 +576,18 @@ Unix emulation environment and defining _WIN32 confuses some programs which think that they have to make special concessions for a Windows environment which Cygwin handles automatically. +Note that using -mno-cygwin replaces __CYGWIN__ with __MINGW32__ as to +tell which compiler (or settings) you're running. +Check this out in detail by running, for example + +@example + $ gcc -dM -E -xc /dev/null >gcc.txt + $ gcc -mno-cygwin -dM -E -xc /dev/null >gcc-mno-cygwin.txt + $ gcc -mwin32 -dM -E -xc /dev/null >gcc-mwin32.txt +@end example +Then use the diff and grep utilities to check +what the difference is. + @subsection How should I port my Unix GUI to Windows? There are two basic strategies for porting Unix GUIs to Windows. |