Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
+ perl Makefile.PL INSTALLDIRS=vendor NO_PACKLIST=1 NO_PERLLOCAL=1
Alien::Build::Plugin::PkgConfig::Negotiate> Using PkgConfig plugin: PkgConfig::LibPkgConf
/var/tmp/rpm-tmp.BPeDFZ: line 49:    72 Segmentation fault      (core dumped) perl Makefile.PL INSTALLDIRS=vendor NO_PACKLIST=1 NO_PERLLOCAL=1
error: Bad exit status from /var/tmp/rpm-tmp.BPeDFZ (%build)
%build phase exits with an error. Using PkgConfig::LibPkgConf Perl module segfaults.