Summary of my perl5 (revision 5 version 9 subversion 5) configuration: Platform: osname=linux, osvers=2.6.18-32-splash, archname=i686-linux-thread-multi uname='linux laptop 2.6.18-32-splash #3 smp preempt mon feb 5 14:12:53 local time zone must be set--s i686 amd turion(tm) 64 x2 mobile technology tl-60 authenticamd gnulinux ' config_args='-Dprefix=/home/micha/localperl -Dusethreads -des -Dusedevel' hint=recommended, useposix=true, d_sigaction=define useithreads=define, usemultiplicity=define useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef use64bitint=undef, use64bitall=undef, 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='-O2', cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe -I/usr/local/include' ccversion='', gccversion='4.1.1 (Gentoo 4.1.1-r1)', gccosandvers='' intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12 ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8 alignbytes=4, prototype=define Linker and Libraries: ld='cc', ldflags =' -L/usr/local/lib' libpth=/usr/local/lib /lib /usr/lib libs=-lnsl -lndbm -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc libc=/lib/libc-2.4.so, so=so, useshrplib=false, libperl=libperl.a gnulibc_version='2.4' Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E' cccdlflags='-fPIC', lddlflags='-shared -O2 -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_ITHREADS USE_LARGE_FILES USE_PERLIO USE_REENTRANT_API Built under linux Compiled at Jul 9 2007 18:20:04 @INC: /home/micha/localperl/lib/5.9.5/i686-linux-thread-multi /home/micha/localperl/lib/5.9.5 /home/micha/localperl/lib/site_perl/5.9.5/i686-linux-thread-multi /home/micha/localperl/lib/site_perl/5.9.5