[Bug driver/81991] New: gcc-ar segfaults if we run it with the full path

[ryxi at stu dot xidian.edu.cn]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81991

            Bug ID: 81991
           Summary: gcc-ar segfaults if we run it with the full path
           Product: gcc
           Version: 7.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: driver
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ryxi at stu dot xidian.edu.cn
  Target Milestone: ---

From r238089:

$ /usr/bin/gcc-ar
Segmentation fault (core dumped)

This issue prevents the building of ATLAS.  Its configure script tries to run
gcc-ar with the full path.