Re: [BUG] configure test for "checking if libpcap is suitable" fails

[John Spencer <maillist-nmap () barfooze de>]

On 09/08/2012 08:45 PM, David Fifield wrote:
> On Sat, Sep 08, 2012 at 08:50:03PM +0200, John Spencer wrote:
> > configure:6301: checking if libpcap is suitable
> > configure:6325: gcc -o conftest -D_GNU_SOURCE -D_BSD_SOURCE  -Wl,-E
> > -lz -Wl,-rpath-link=//lib conftest.c  -lp$
> > conftest.c: In function 'main':
> > conftest.c:35:5: error: implicit declaration of function 'exit'
> >
> > exit is defined in<stdlib.h>  so either this include should be
> > added, or return used instead of exit
>
> What platform are you running on?
musl/linux (musl libc, which is stricter than glibc)
glibc's stdio.h unconditionally and erroneusly (namespace pollution) 
includes stdlib.h, that's why some tests written for glibc fail.
most people write code, check if it compiles and then think it's "ok"
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