[Bug libobjc/26402] New: thr-objc.c might define _XOPEN_SOURCE unnecessarily

["gcc-bugzilla at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

As described in PR libobjc/26309, defining _XOPEN_SOURCE in thr-objc.c
breaks bootstrap on Tru64 UNIX V4.0F.  It is yet unclear why this
definition is necessary at all, so instead of the fix/workaround commited
for that PR, it might be possible to avoid defining _XOPEN_SOURCE in the
first place.

Environment:
System: OSF1 rimsky V4.0 1229 alpha
Machine: alpha

host: alpha-dec-osf4.0f
build: alpha-dec-osf4.0f
target: alpha-dec-osf4.0f
configured with: /vol/gcc/src/gcc-dist/configure --prefix=/vol/gcc
--with-local-prefix=/vol/gcc --disable-nls --host alpha-dec-osf4.0f --build
alpha-dec-osf4.0f --target alpha-dec-osf4.0f
--with-gmp-dir=/vol/gnu/obj/gmp-4.1.3
--with-mpfr-dir=/vol/gnu/obj/gmp-4.1.3/mpfr
--enable-languages=c,c++,fortran,java,objc,ada --disable-libmudflap

How-To-Repeat:
Cf. PR libobjc/26309.


-- 
           Summary: thr-objc.c might define _XOPEN_SOURCE unnecessarily
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libobjc
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ro at techfak dot uni-bielefeld dot de
 GCC build triplet: alpha-dec-osf4.0f
  GCC host triplet: alpha-dec-osf4.0f
GCC target triplet: alpha-dec-osf4.0f


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26402