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Re: __STRICT_ANSI__
- To: cygwin <cygwin at cygwin dot com>
- Subject: Re: __STRICT_ANSI__
- From: Danny Smith <danny_r_smith_2001 at yahoo dot co dot nz>
- Date: Thu, 17 May 2001 09:38:55 +1000 (EST)
--- Harold Hunt <huntharo@msu.edu> wrote: > I can't seem to understand
the conditional prototyping of some
> functions in
> Cygwin's headers.
>
> When compiling Cygwin/XFree86, which uses -ansi, which in turn
> defines
> __STRICT_ANSI__, we get warnings about references to undefined
> functions.
>
> Below I have included the simplified prototyping of each offending
> function;
> I have removed other functions declared within the same #ifndef scope
> for
> simplicity.
>
> It looks to me like __STRICT_ANSI__ might not be being used
> correctly. Any
> ideas?
>
None of the functions you list are in the ANSI standard. If you want
ANSI portable code, don't use them. __STRICT_ANSI__ is doing its job
correctly, thank you very much.
Danny
> Harold
>
> Cygwin's stdio.h:
> #ifndef __STRICT_ANSI__
> #ifndef _REENT_ONLY
> FILE * _EXFUN(fdopen, (int, const char *));
> #endif
> int _EXFUN(fileno, (FILE *));
> int _EXFUN(pclose, (FILE *));
> FILE * _EXFUN(popen, (const char *, const char *));
> #endif
>
> GNU/Linux stdio.h:
> #ifdef __USE_POSIX
> extern FILE *fdopen (int __fd, __const char *__modes) __THROW;
> #endif
>
> #ifdef __USE_POSIX
> extern int fileno (FILE *__stream) __THROW;
> #endif
>
> #if defined __USE_POSIX2
> extern FILE *popen (__const char *__command, __const char *__modes)
> __THROW;
> extern int pclose (FILE *__stream) __THROW;
> #endif
>
>
> Cygwin's stdlib.h:
> #ifndef __STRICT_ANSI__
> #ifndef _REENT_ONLY
> int _EXFUN(mkstemp,(char *));
> char * _EXFUN(mktemp,(char *));
> #endif
> #endif
>
> GNU/Linux stdlib.h:
> #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
> extern int mkstemp (char *__template) __THROW;
> #endif
>
>
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