[Bug fortran/86667] New: can no longer traverse environment table

[urbanjost at comcast dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86667

            Bug ID: 86667
           Summary: can no longer traverse environment table
           Product: gcc
           Version: 7.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: urbanjost at comcast dot net
  Target Milestone: ---

Created attachment 44433
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44433&action=edit
fortran module and example program that used to print environment table

Program could read process environment table and print it up through at least
GNU/gfortran 6.4.  Now at 7.0.3 it loops showing first entry fron environment
table several hundred times and then fails with a segfault.