undefined reference to `_getline'
Robb, Sam
sam.robb@timesys.com
Fri Oct 24 05:06:00 GMT 2003
> > In porting soem code to run under Cygwin, I ran
> > into a problem finding getline(). The following
> > code snippet demonstrates the problem:
>
> getline() is a glibc-ism, a nonstandard GNU extension. It's
> not listed anywhere that I can see at
> <http://cygwin.com/cygwin-api/cygwin-api.html> so I'd say it's safe to
> assume that it's not supported by Cygwin.
It's declared in /usr/include/stdio.h, and it doesn't
look like it's guarded by any relevant #define:
$ gcc -E /usr/include/stdio.h | grep getline
ssize_t __attribute__((__cdecl__)) __getline (char **, size_t *, FILE *);
Grumble. Looking through the archives shows that
getline() isn't exported:
http://www.cygwin.com/ml/cygwin/2003-06/msg01328.html
Can't understand how I missed this on my first search.
cgf, et al - is there a reason why getline and getdelim
aren't exported, or is this just another example of good
ol' fashion Cygwin meanness?
> I'm pretty sure you could
> work around this by rolling your own. In fact, a little googling
> returned the following:
> <http://www.klid.dk/pub/gnu/gnu-utils/gnu/txtutil1.22/lib/getline.c>
Yes - I found this almost immediately. My concern is
that it *looks* like getline() is available, but it
isn't.
-Samrobb
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