unless ('' eq 'sles9' || '' eq 'rhes4') { system("/usr/bin/fmtutil-sys --missing > /dev/null 2>&1"); if ($?) { print "Failed to run fmtutil-sys to check for missing TeX format files. Try running /usr/bin/fmtutil-sys --missing manually\n"; } else { print "Check for missing TeX format files with fmtutil-sys completed successfully.\n"; } }