m4/arpa_inet_h.m4

   1 # arpa_inet_h.m4 serial 8
   2 dnl Copyright (C) 2006, 2008, 2009, 2010 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
   7 dnl Written by Simon Josefsson and Bruno Haible
   8
   9 AC_DEFUN([gl_HEADER_ARPA_INET],
  10 [
  11   dnl Use AC_REQUIRE here, so that the default behavior below is expanded
  12   dnl once only, before all statements that occur in other macros.
  13   AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
  14
  15   AC_CHECK_HEADERS_ONCE([arpa/inet.h])
  16   if test $ac_cv_header_arpa_inet_h = yes; then
  17     HAVE_ARPA_INET_H=1
  18   else
  19     HAVE_ARPA_INET_H=0
  20   fi
  21   AC_SUBST([HAVE_ARPA_INET_H])
  22   dnl <arpa/inet.h> is always overridden, because of GNULIB_POSIXCHECK.
  23   gl_CHECK_NEXT_HEADERS([arpa/inet.h])
  24
  25   dnl Check for declarations of anything we want to poison if the
  26   dnl corresponding gnulib module is not in use.
  27   gl_WARN_ON_USE_PREPARE([[
  28 /* On some systems, this header is not self-consistent.  */
  29 #ifndef __GLIBC__
  30 # include <sys/socket.h>
  31 #endif
  32 #include <arpa/inet.h>
  33     ]], [inet_ntop inet_pton])
  34 ])
  35
  36 dnl Unconditionally enables the replacement of <arpa/inet.h>.
  37 AC_DEFUN([gl_REPLACE_ARPA_INET_H],
  38 [
  39   dnl This is a no-op, because <arpa/inet.h> is always overridden.
  40   :
  41 ])
  42
  43 AC_DEFUN([gl_ARPA_INET_MODULE_INDICATOR],
  44 [
  45   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  46   AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
  47   gl_MODULE_INDICATOR_SET_VARIABLE([$1])
  48 ])
  49
  50 AC_DEFUN([gl_ARPA_INET_H_DEFAULTS],
  51 [
  52   GNULIB_INET_NTOP=0;     AC_SUBST([GNULIB_INET_NTOP])
  53   GNULIB_INET_PTON=0;     AC_SUBST([GNULIB_INET_PTON])
  54   dnl Assume proper GNU behavior unless another module says otherwise.
  55   HAVE_DECL_INET_NTOP=1;  AC_SUBST([HAVE_DECL_INET_NTOP])
  56   HAVE_DECL_INET_PTON=1;  AC_SUBST([HAVE_DECL_INET_PTON])
  57 ])