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From: "danglin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libgomp/96661] New: configure:16984: error: unsupported system, 
 cannot find Fortran int kind=16
Date: Mon, 17 Aug 2020 16:58:24 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96661

            Bug ID: 96661
           Summary: configure:16984: error: unsupported system, cannot
                    find Fortran int kind=3D16
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgomp
          Assignee: unassigned at gcc dot gnu.org
          Reporter: danglin at gcc dot gnu.org
                CC: burnus at gcc dot gnu.org, jakub at gcc dot gnu.org
  Target Milestone: ---
              Host: hppa64-hp-hpux11.11
            Target: hppa64-hp-hpux11.11
             Build: hppa64-hp-hpux11.11

Whiling configuring libgomp, the following error occurs:

configure:16984: error: unsupported system, cannot find Fortran int kind=3D=
16,
nee
ded for omp_depend_kind

## ---------------- ##
## Cache variables. ##
## ---------------- ##

ac_cv_build=3Dhppa64-hp-hpux11.11
ac_cv_c_compiler_gnu=3Dyes

Looks like this was introduced by:

2020-07-23  Tobias Burnus  <tobias@codesourcery.com>

        * configure.ac: Add OMP_DEPEND_KIND and OMP_INT128_SIZE.
        * libgomp_f.h.in (omp_check_defines): Check whether
        sizeof of determined Fortran kind and C typedef match.
        * omp_lib.f90.in: Add omp_depened_kind.
        * omp_lib.h.in: Likewise; fix omp_alloctrait_key_kind.
        * configure: Regenerate.
        * Makefile.in: Regenerate.
        * testsuite/Makefile.in: Regenerate.

Guess this is because target doesn't support int128.

For the most part, libgomp used to work on this target.=