A build log from Mozilla showing this: http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1280652762.1280653204.15224.gz
I can gather up the response files if necessary, but I would imagine the problem is that gcc is feeding the expanded response files to collect2 and killing it. -- Summary: gcc with response files produces execv: Argument list too long for collect2 Product: gcc Version: 4.3.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: me at kylehuey dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45157