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Re: bug in cygwin <sys/termios.h>?
- From: Corinna Vinschen <corinna-cygwin at cygwin dot com>
- To: cygwin at cygwin dot com
- Date: Fri, 21 Jan 2005 13:11:58 +0100
- Subject: Re: bug in cygwin <sys/termios.h>?
- References: <41F086E7.6010007@byu.net>
- Reply-to: cygwin at cygwin dot com
On Jan 20 21:36, Eric Blake wrote:
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> When compiling coreutils/src/stty.c, I got a warning from this segment:
>
> /* ISC renamed swtch to susp for termios, but we'll accept either name. */
> #if defined(VSUSP) && !defined(VSWTCH)
> # define VSWTCH VSUSP
> # define CSWTCH CSUSP
> #endif
> #if defined(VSWTCH) && !defined(CSWTCH)
> # define CSWTCH _POSIX_VDISABLE
> #endif
>
> stty.c:106:1: warning: "CSWTCH" redefined
> In file included from /usr/include/termios.h:4,
> from stty.c:40:
> /usr/include/sys/termios.h:85:1: warning: this is the location of the
> previous definition
>
> Investigation of sys/termios.h shows that cygwin has "#define CSWTCH 0x1a"
> (ctrl-z), "#define CSUSP CTRL('z')" (where CTRL is ((ch)&0x1f), "#define
> VSUSP 14", "#define VSWTC 15", but no VSWTCH anywhere! Is VSWTC a typo
> for the intended VSWTCH? And why are VSUSP and VSWTC distinct, when
> CSWTCH and CSUSP are the same and coreutils was trying to use VSUSP as an
> alias to VSWTCH?
Looks like a bug in coreutils to me. The above mentioned defines are
not equal, but equivalent defined on Linux.
Corinna
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Corinna Vinschen Please, send mails regarding Cygwin to
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