kc3-lang/gnulib/m4/wcstok.m4

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• Hash : 32a72f45
  Author :
  Date : 2023-01-01T01:14:21
  

  maint: run 'make update-copyright'
  

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• m4/wcstok.m4

• # wcstok.m4 serial 6
  dnl Copyright (C) 2011-2023 Free Software Foundation, Inc.
  dnl This file is free software; the Free Software Foundation
  dnl gives unlimited permission to copy and/or distribute it,
  dnl with or without modifications, as long as this notice is preserved.
  
  AC_DEFUN([gl_FUNC_WCSTOK],
  [
    AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
    AC_REQUIRE([AC_CANONICAL_HOST])
    AC_CHECK_FUNCS_ONCE([wcstok])
    if test $ac_cv_func_wcstok = yes; then
      dnl On HP-UX 11.31, it depends on the compiler and linker whether wcstok()
      dnl uses hidden state, ignoring the third argument, and thus exhibits a
      dnl bug when two or more wcstok() iteration loops are being performed in
      dnl the same thread.
      case "$host_os" in
        hpux*)
          REPLACE_WCSTOK=1
          ;;
        *)
          dnl POSIX:        wchar_t *wcstok (wchar_t *, const wchar_t *, wchar_t **);
          dnl mingw, MSVC:  wchar_t *wcstok (wchar_t *, const wchar_t *);
          AC_CACHE_CHECK([for wcstok with POSIX signature],
            [gl_cv_func_wcstok_posix_signature],
            [AC_COMPILE_IFELSE(
               [AC_LANG_PROGRAM(
                  [[#include <wchar.h>
                    wchar_t *wcstok (wchar_t *, const wchar_t *, wchar_t **);
                  ]],
                  [[]])],
               [gl_cv_func_wcstok_posix_signature=yes],
               [gl_cv_func_wcstok_posix_signature=no])
            ])
          if test $gl_cv_func_wcstok_posix_signature = no; then
            REPLACE_WCSTOK=1
          fi
          ;;
      esac
    else
      HAVE_WCSTOK=0
    fi
  ])
  

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