[Bug libstdc++/85904] New: configure issue cross compiling on netbsd, with patch

[coypu at sdf dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85904

            Bug ID: 85904
           Summary: configure issue cross compiling on netbsd, with patch
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: coypu at sdf dot org
  Target Milestone: ---

Created attachment 44175
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44175&action=edit
Fixes configure for me

Out of the box (+3 patches I would like to get merged) I got:

/home/fly/gcc/libstdc++-v3/libsupc++/new_opa.cc:62:1: error: 'void*
aligned_alloc(std::size_t, std::size_t)' was declared 'extern' and later
'static' [-fpermissive]
 aligned_alloc (std::size_t al, std::size_t sz)
 ^~~~~~~~~~~~~
In file included from /tmp/build/alpha--netbsd/libstdc++-v3/include/cstdlib:75,
                 from
/tmp/build/alpha--netbsd/libstdc++-v3/include/stdlib.h:36,
                 from /home/fly/gcc/libstdc++-v3/libsupc++/new_opa.cc:27:
/tmp/build/gcc/include-fixed/stdlib.h:254:7: note: previous declaration of
'void* aligned_alloc(size_t, size_t)'
 void *aligned_alloc(size_t, size_t);
       ^~~~~~~~~~~~~


I took the liberty to modify configure following similar platform examples.
with the patches I can build trunk.
Yes I will also email it to gcc-patches.