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xbalto

Member

Registered: 2009-03-05

Posts: 5

Segfault in perl Term::Readline::Gnu

I am trying to install the perl package Term::Readline::Gnu from CPAN (not the Arch package perl-term-readline, which seems to install OK).  I get a segmentation fault as soon as the package is called in a script.  For example, below is the output from one of the package test scripts:

me@mycomputer:~/Desktop/Term-ReadLine-Gnu-1.16$ perl t/callback.t
1..7
ok 1    loading
Segmentation fault

I am running Arch64 and keep it updated.  Any thoughts?

me@mycomputer:~$ perl -V
Summary of my perl5 (revision 5 version 10 subversion 0) configuration:
  Platform:
    osname=linux, osvers=2.6.25-arch, archname=x86_64-linux-thread-multi
    uname='linux workstation64 2.6.25-arch #1 smp preempt sat jun 14 17:44:19 cest 2008 x86_64 intel(r) core(tm)2 quad cpu @ 2.40ghz genuineintel gnulinux '
    config_args='-des -Dusethreads -Doptimize=-march=x86-64 -mtune=generic -O2 -pipe -Dprefix=/usr -Dinstallprefix=/usr -Dvendorprefix=/usr -Dprivlib=/usr/share/perl5/core_perl -Darchlib=/usr/lib/perl5/core_perl -Dsitelib=/usr/share/perl5/site_perl/5.10.0 -Dsitearch=/usr/lib/perl5/site_perl/5.10.0 -Dvendorlib=/usr/share/perl5/vendor_perl -Dvendorarch=/usr/lib/perl5/vendor_perl -Dotherlibdirs=/usr/lib/perl5/current:/usr/lib/perl5/site_perl/current -Dscriptdir=/usr/bin/perlbin/core -Dsitescript=/usr/bin/perlbin/site -Dvendorscript=/usr/bin/perlbin/vendor -Dman1ext=1perl -Dman3ext=3perl -Dcccdlflags='-fPIC''
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-march=x86-64 -mtune=generic -O2 -pipe',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe -I/usr/local/include'
    ccversion='', gccversion='4.3.1 20080626 (prerelease)', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
    libc=/lib/libc-2.8.so, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.8'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -march=x86-64 -mtune=generic -O2 -pipe -L/usr/local/lib'


Characteristics of this binary (from libperl):
  Compile-time options: MULTIPLICITY PERL_DONT_CREATE_GVSV
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP USE_64_BIT_ALL
                        USE_64_BIT_INT USE_ITHREADS USE_LARGE_FILES
                        USE_PERLIO USE_REENTRANT_API
  Built under linux
  Compiled at Jun 30 2008 20:30:50
  @INC:
    /usr/lib/perl5/site_perl/5.10.0
    /usr/share/perl5/site_perl/5.10.0
    /usr/lib/perl5/vendor_perl
    /usr/share/perl5/vendor_perl
    /usr/share/perl5/vendor_perl
    /usr/lib/perl5/core_perl
    /usr/share/perl5/core_perl
    /usr/lib/perl5/current
    /usr/lib/perl5/site_perl/current
    .

juster

Forum Fellow

Registered: 2008-10-07

Posts: 195

Re: Segfault in perl Term::Readline::Gnu

I had this problem many months ago.  The problem was I had the termcap-compat package installed.  Term::Readline::Gnu automatically detects the library file provided by termcap-compat and links to it.  Yet the library provided is just a fake version of an old library (hence 'compat') and doesn't work how Term::Readline::Gnu expects.  Then, catastrophic failure!

Remove termcap-compat and all should be well.  I think you can even reinstall it afterwards but I chose not to, out of vengeance!

xbalto

Member

Registered: 2009-03-05

Posts: 5

Re: Segfault in perl Term::Readline::Gnu

Thanks very much--worked perfectly.

Xyne

Administrator/PM

Registered: 2008-08-03

Posts: 6,963

Website

Re: Segfault in perl Term::Readline::Gnu

I just wanted to let you know that you can use pacpan to automatically create pacman packages from CPAN modules (in case you're installing them manually), e.g.

pacpan Term::ReadLine::Gnu

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