1# netdb_h.m4 serial 11
2dnl Copyright (C) 2008-2014 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_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
24AC_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
33AC_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])
44