Re: Nmap static build fails

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

On 09/17/2012 09:17 PM, David Fifield wrote:
> On Mon, Sep 17, 2012 at 02:07:42PM +0200, Florian Roth wrote:
> > "make static" fails.
> >
> > libpcap/libpcap.a(nametoaddr.o): In function `pcap_nametonetaddr':
> > /home/froth/nmap-5.36TEST4/libpcap/./nametoaddr.c:151: warning: Using
> > 'getnetbyname' in statically linked applications requires at runtime
> > the shared libraries from the glibc version used for linking
> > libpcap/libpcap.a(nametoaddr.o): In function `pcap_nametoproto':
> > /home/froth/nmap-5.36TEST4/libpcap/./nametoaddr.c:267: warning: Using
> > 'getprotobyname' in statically linked applications requires at runtime
> > the shared libraries from the glibc version used for linking
> > libpcap/libpcap.a(nametoaddr.o): In function `pcap_nametoport':
> > /home/froth/nmap-5.36TEST4/libpcap/./nametoaddr.c:181: warning: Using
> > 'getservbyname' in statically linked applications requires at runtime
> > the shared libraries from the glibc version used for linking
> > /usr/bin/ld: dynamic STT_GNU_IFUNC symbol `strcmp' with pointer
> > equality in `/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/../../../libc.a(strcmp.o)'
> > can not be used when making an executable; recompile with -fPIE and
> > relink with -pie
> > collect2: ld returned 1 exit status
> > make[2]: *** [nmap] Error 1
> > make[2]: Leaving directory `/home/froth/nmap-5.36TEST4'
> > make[1]: *** [all] Error 2
> > make[1]: Leaving directory `/home/froth/nmap-5.36TEST4'
> > make: *** [static] Error 2
>
> I'm seeing this error too with "make static". I haven't seen it before,
> so it's probably caused by some change in the GCC build chain. A few
> minutes of web searching didn't reveal an obvious cause.
>
> David Fifield

glibc makes static linking hard to impossible. some parts of it (network 
related, iirc) are used via dlopen'ing of another .so file.

if nothing else in the nmap sources and the shitload of libraries it 
includes in its own tree depends on shared object's loaded via dlopen, 
you can compile it against musl libc instead of glibc using one of the 
musl cross compilers available from 
https://bitbucket.org/GregorR/musl-cross/downloads .

here are some patches that you will need to build nmap against musl
https://github.com/rofl0r/sabotage/blob/master/pkg/nmap
https://github.com/rofl0r/sabotage/blob/master/KEEP/nmap-nbase_h.patch
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