[Bug libstdc++/86402] New: Several targets missing AC_DEFINE(_GLIBCXX_USE_RANDOM_TR1) in crossconfig.m4

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86402

            Bug ID: 86402
           Summary: Several targets missing
                    AC_DEFINE(_GLIBCXX_USE_RANDOM_TR1) in crossconfig.m4
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
  Target Milestone: ---

All the BSDs (including Darwin) support /dev/random and /dev/urandom and maybe
HPUX too. They should define the config macro.