view m4/accept4.m4 @ 16815:837ea4b31230

*alloc-gnu, eealloc: Avoid "guessing no" when cross-compiling to glibc. * m4/malloc.m4 (_AC_FUNC_MALLOC_IF): Override in autoconf < 2.70. * m4/realloc.m4 (_AC_FUNC_REALLOC_IF): Override in autoconf < 2.70. * m4/calloc.m4 (_AC_FUNC_CALLOC_IF): Require AC_CANONICAL_HOST. When cross-compiling, choose the first alternative on glibc systems. * modules/eealloc (Files): Add m4/malloc.m4, m4/realloc.m4.
author Bruno Haible <bruno@clisp.org>
date Fri, 04 May 2012 04:23:44 +0200
parents 8250f2777afc
children e542fd46ad6f
line wrap: on
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# accept4.m4 serial 2
dnl Copyright (C) 2009-2012 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_ACCEPT4],
[
  AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])

  dnl Persuade glibc <sys/socket.h> to declare accept4().
  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])

  AC_CHECK_FUNCS_ONCE([accept4])
  if test $ac_cv_func_accept4 != yes; then
    HAVE_ACCEPT4=0
  fi
])