m4/netdb_h.m4

   1 # netdb_h.m4 serial 11
   2 dnl Copyright (C) 2008-2014 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 AC_DEFUN([gl_HEADER_NETDB],
   8 [
   9   AC_REQUIRE([gl_NETDB_H_DEFAULTS])
  10   gl_CHECK_NEXT_HEADERS([netdb.h])
  11   if test $ac_cv_header_netdb_h = yes; then
  12     HAVE_NETDB_H=1
  13   else
  14     HAVE_NETDB_H=0
  15   fi
  16   AC_SUBST([HAVE_NETDB_H])
  17
  18   dnl Check for declarations of anything we want to poison if the
  19   dnl corresponding gnulib module is not in use.
  20   gl_WARN_ON_USE_PREPARE([[#include <netdb.h>]],
  21     [getaddrinfo freeaddrinfo gai_strerror getnameinfo])
  22 ])
  23
  24 AC_DEFUN([gl_NETDB_MODULE_INDICATOR],
  25 [
  26   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  27   AC_REQUIRE([gl_NETDB_H_DEFAULTS])
  28   gl_MODULE_INDICATOR_SET_VARIABLE([$1])
  29   dnl Define it also as a C macro, for the benefit of the unit tests.
  30   gl_MODULE_INDICATOR_FOR_TESTS([$1])
  31 ])
  32
  33 AC_DEFUN([gl_NETDB_H_DEFAULTS],
  34 [
  35   GNULIB_GETADDRINFO=0; AC_SUBST([GNULIB_GETADDRINFO])
  36   dnl Assume proper GNU behavior unless another module says otherwise.
  37   HAVE_STRUCT_ADDRINFO=1;   AC_SUBST([HAVE_STRUCT_ADDRINFO])
  38   HAVE_DECL_FREEADDRINFO=1; AC_SUBST([HAVE_DECL_FREEADDRINFO])
  39   HAVE_DECL_GAI_STRERROR=1; AC_SUBST([HAVE_DECL_GAI_STRERROR])
  40   HAVE_DECL_GETADDRINFO=1;  AC_SUBST([HAVE_DECL_GETADDRINFO])
  41   HAVE_DECL_GETNAMEINFO=1;  AC_SUBST([HAVE_DECL_GETNAMEINFO])
  42   REPLACE_GAI_STRERROR=0;   AC_SUBST([REPLACE_GAI_STRERROR])
  43 ])