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Diffstat (limited to 'winsup/doc/how-programming.texinfo')
| -rw-r--r-- | winsup/doc/how-programming.texinfo | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/winsup/doc/how-programming.texinfo b/winsup/doc/how-programming.texinfo index aa23b186f..26adf0cc9 100644 --- a/winsup/doc/how-programming.texinfo +++ b/winsup/doc/how-programming.texinfo @@ -564,6 +564,12 @@ we thought it would be a good idea for compatibility with VC++ code to follow their example. We use _MFC_VER to indicate code that should be compiled with VC++. +_WIN32 is only defined when you use either the -mno-cygwin or -mwin32 +gcc command line options. This is because Cygwin is supposed to be a +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. + @subsection How should I port my Unix GUI to Windows? There are two basic strategies for porting Unix GUIs to Windows. |