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Subject:	RE: undefined reference to `_getline'
Date:	Fri, 24 Oct 2003 00:14:57 -0400
Message-ID:	<3D848382FB72E249812901444C6BDB1DE4DF10@exchange.timesys.com>
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From:	"Robb, Sam" <sam DOT robb AT timesys DOT com>
To:	<cygwin AT cygwin DOT com>
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id h9O4Gbp6028623

> >   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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