Hi all, I have a new system running Fedora. I want to compile simple perl script using perlcc. The compile process complete successfully with couple of warning, but when I ran the compiled program, it give me a core file. Look: The script: #!/usr/bin/perl use Date::Calc qw(Delta_Days); #require Date::Calc; #qw(Delta_Days); ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time); $year+=1900; $mon+=1; my $year2=2003; my $month2=11; my $day2=30; $days = Delta_Days ( $year, $mon, $mday, $year2, $month2, $day2); print "Number of days: $days\n"; The compile string & result: [fedora-l]:/u/sinfsyst/yanqui/prog/Perl> perlcc -o tutu tutu.pl pccBxtoj.c: In function `perl_init_aaab': pccBxtoj.c:24504: warning: this decimal constant is unsigned only in ISO C90 And now the execution: [fedora-l]:/u/sinfsyst/yanqui/prog/Perl> ./tutu Segmentation fault (core dumped) If I do exactly same thing on Redhat 9, it works without any error/problem. There is no "warning" on the compile process. The difference is RH 9 uses Perl 5.8.0 and Fedora 5.8.1. Is it possible to "downgrade" fedora perl to 5.8.0? If you have any other suggestion that will solve that problem it will be appreciated. Thanks for your help. Regards, Yanick