[Bug testsuite/63899] New: WARNING: Could not compile g++.dg/compat/struct-layout-1 generator

[richard at netbsd dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63899

            Bug ID: 63899
           Summary: WARNING: Could not compile
                    g++.dg/compat/struct-layout-1 generator
           Product: gcc
           Version: 4.9.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: richard at netbsd dot org

Created attachment 33988
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33988&action=edit
g++.dg/compat/struct-layout-1 run output

Never noticed this with 4.8.x, but with 4.9.2 the testsuite has some new
warnings of the sort:
>WARNING: Could not compile g++.dg/compat/struct-layout-1 generator
and
>WARNING: Could not compile gcc.dg/compat/struct-layout-1 generator

Is this something to be concerned about? I attach the gcc and g++ individual
test run details.