ssize_t.m4 754 B

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  1. # ssize_t.m4 serial 4 (gettext-0.15)
  2. dnl Copyright (C) 2001-2003, 2006 Free Software Foundation, Inc.
  3. dnl This file is free software; the Free Software Foundation
  4. dnl gives unlimited permission to copy and/or distribute it,
  5. dnl with or without modifications, as long as this notice is preserved.
  6. dnl From Bruno Haible.
  7. dnl Test whether ssize_t is defined.
  8. AC_DEFUN([gt_TYPE_SSIZE_T],
  9. [
  10. AC_CACHE_CHECK([for ssize_t], [gt_cv_ssize_t],
  11. [AC_TRY_COMPILE([#include <sys/types.h>],
  12. [int x = sizeof (ssize_t *) + sizeof (ssize_t);
  13. return !x;],
  14. [gt_cv_ssize_t=yes], [gt_cv_ssize_t=no])])
  15. if test $gt_cv_ssize_t = no; then
  16. AC_DEFINE([ssize_t], [int],
  17. [Define as a signed type of the same size as size_t.])
  18. fi
  19. ])