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Re: reentrant functions
- From: Corinna Vinschen <corinna-cygwin at cygwin dot com>
- To: cygwin at cygwin dot com
- Date: Wed, 7 Apr 2004 21:46:43 +0200
- Subject: Re: reentrant functions
- References: <20040407044353.GA6805@panix.com>
- Reply-to: cygwin at cygwin dot com
On Apr 6 23:43, Oleg Ostrozhansky wrote:
> I have a question about writing a multi-threaded program (using POSIX.1
> threads) in Cygwin. "info libc" has a nice chapter about reentrancy,
> which talks about _<func>_r reentrant variants for functions that are
> not thread-safe. But when as an example I try using _gets_r(), I'm
> getting a link error that this function does not exist:
> ~ $ gcc -g threadtest.c
> /cygdrive/c/.../cc3s8dTu.o(.text+0xb4): In function `main':
> threadtest.c:26: undefined reference to `__gets_r'
> collect2: ld returned 1 exit status
> ~ $
> I can't find it anywhere in the libraries. The prototype is in stdio.h,
> so the compile step works. What do I need to do to make it work?
Many reentrant functions from newlib are currently just not exported by
Cygwin. Any volunteer to collect these non-exported newlib functions
so that we can add all of them?
Corinna Vinschen Please, send mails regarding Cygwin to
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