[Bug libstdc++/99875] New: [10 Regression] experimental filesystem fails on Darwin

[iains at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99875

            Bug ID: 99875
           Summary: [10 Regression] experimental filesystem fails on
                    Darwin
           Product: gcc
           Version: 10.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: iains at gcc dot gnu.org
  Target Milestone: ---

On the RC1 for 10.3

                === libstdc++ Summary ===

# of unexpected failures        51

of the form 
Excess errors:
/src-local/gcc-git-10/libstdc++-v3/testsuite/util/testsuite_fs.h:135: error:
'::getpid' has not been declared

these were not present at r10-9540.