2 dnl Copyright (C) 2008-2017 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.
7 AC_DEFUN([gl_HEADER_NETDB],
9 AC_REQUIRE([gl_NETDB_H_DEFAULTS])
10 gl_CHECK_NEXT_HEADERS([netdb.h])
11 if test $ac_cv_header_netdb_h = yes; then
16 AC_SUBST([HAVE_NETDB_H])
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])
24 AC_DEFUN([gl_NETDB_MODULE_INDICATOR],
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])
33 AC_DEFUN([gl_NETDB_H_DEFAULTS],
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])