http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60462
--- Comment #1 from Fred Krogh <fkrogh#gcc at mathalacarte dot com> --- With this command line ./tapt -u ./mps afiro it gives /home/m/math77/lin/cons/anypoint/tapt ./tapt -u ./mps afiro The standard makes no mention of providing the first part of what is here. That first part is the full path for the command.