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.
7 dnl Written by Simon Josefsson and Bruno Haible
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])
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])
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 ])
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 ])
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 ])
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 ])