[Openmp-dev] warnings in omp.h from Clang

[Stephen Siegel via Openmp-dev]

Hello,
I’ve installed Clang 9.0 on my Mac using MacPorts.  When I compile a C/OpenMP program with the flag -pedantic, I get 4 warnings, all of the same kind, in omp.h, e.g. "ISO C restricts enumerator values to range of 'int'  (2147483648 is too large)”.   An example is below.   Do other people get this, or am I doing something wrong?
Thanks,
Steve


basie:diffusion1d siegel$ cat exp.c
#include <omp.h>
int main() {
}

basie:diffusion1d siegel$ clang-mp-9.0 -fopenmp -pedantic exp.c
In file included from exp.c:1:
/opt/local/include/libomp/omp.h:53:9: warning: ISO C restricts enumerator values to range of 'int'
      (2147483648 is too large) [-Wpedantic]
        omp_sched_monotonic = 0x80000000
        ^                     ~~~~~~~~~~
/opt/local/include/libomp/omp.h:302:7: warning: ISO C restricts enumerator values to range of 'int'
      (18446744073709551615 is too large) [-Wpedantic]
      KMP_ALLOCATOR_MAX_HANDLE = UINTPTR_MAX
      ^                          ~~~~~~~~~~~
/opt/local/include/libomp/omp.h:315:7: warning: ISO C restricts enumerator values to range of 'int'
      (18446744073709551615 is too large) [-Wpedantic]
      KMP_MEMSPACE_MAX_HANDLE = UINTPTR_MAX
      ^                         ~~~~~~~~~~~
/opt/local/include/libomp/omp.h:343:39: warning: ISO C restricts enumerator values to range of 'int'
      (18446744073709551615 is too large) [-Wpedantic]
    typedef enum omp_event_handle_t { KMP_EVENT_MAX_HANDLE = UINTPTR_MAX } omp_event_handle_t;
                                      ^                      ~~~~~~~~~~~
4 warnings generated.
basie:diffusion1d siegel$ more /opt/local/include/libomp/omp.h
/*
 * include/omp.h.var
 */


//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//


#ifndef __OMP_H
#   define __OMP_H

#   include <stdlib.h>
#   include <stdint.h>

#   define KMP_VERSION_MAJOR    5
#   define KMP_VERSION_MINOR    0
#   define KMP_VERSION_BUILD    20140926
#   define KMP_BUILD_DATE       "No_Timestamp"