Commit | Line | Data |
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c0c3707f | 1 | # inet_ntop.m4 serial 21 |
5df4cba6 | 2 | dnl Copyright (C) 2005-2006, 2008-2020 Free Software Foundation, Inc. |
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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_FUNC_INET_NTOP], | |
8 | [ | |
9 | AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS]) | |
10 | ||
11 | dnl Persuade Solaris <arpa/inet.h> to declare inet_ntop. | |
12 | AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) | |
13 | ||
14 | AC_REQUIRE([AC_C_RESTRICT]) | |
15 | ||
16 | dnl Most platforms that provide inet_ntop define it in libc. | |
17 | dnl Solaris 8..10 provide inet_ntop in libnsl instead. | |
18 | dnl Solaris 2.6..7 provide inet_ntop in libresolv instead. | |
c0c3707f | 19 | dnl Haiku provides it in -lnetwork. |
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20 | dnl Native Windows provides it in -lws2_32 instead, with a declaration in |
21 | dnl <ws2tcpip.h>, and it uses stdcall calling convention, not cdecl | |
22 | dnl (hence we cannot use AC_CHECK_FUNCS, AC_SEARCH_LIBS to find it). | |
23 | HAVE_INET_NTOP=1 | |
24 | INET_NTOP_LIB= | |
25 | gl_PREREQ_SYS_H_WINSOCK2 | |
26 | if test $HAVE_WINSOCK2_H = 1; then | |
c0c3707f CB |
27 | dnl It needs to be overridden, because the stdcall calling convention |
28 | dnl is not compliant with POSIX. Set REPLACE_INET_NTOP in order to avoid | |
29 | dnl a name conflict at the linker level, even though the header file | |
30 | dnl <ws2tcpip.h> declares inet_ntop only if _WIN32_WINNT >= 0x0600. | |
31 | REPLACE_INET_NTOP=1 | |
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32 | AC_CHECK_DECLS([inet_ntop],,, [[#include <ws2tcpip.h>]]) |
33 | if test $ac_cv_have_decl_inet_ntop = yes; then | |
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34 | INET_NTOP_LIB="-lws2_32" |
35 | else | |
36 | HAVE_DECL_INET_NTOP=0 | |
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37 | fi |
38 | else | |
39 | gl_save_LIBS=$LIBS | |
c0c3707f | 40 | AC_SEARCH_LIBS([inet_ntop], [nsl resolv network], [], |
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41 | [AC_CHECK_FUNCS([inet_ntop]) |
42 | if test $ac_cv_func_inet_ntop = no; then | |
43 | HAVE_INET_NTOP=0 | |
44 | fi | |
45 | ]) | |
46 | LIBS=$gl_save_LIBS | |
47 | ||
48 | if test "$ac_cv_search_inet_ntop" != "no" \ | |
49 | && test "$ac_cv_search_inet_ntop" != "none required"; then | |
50 | INET_NTOP_LIB="$ac_cv_search_inet_ntop" | |
51 | fi | |
52 | ||
53 | AC_CHECK_HEADERS_ONCE([netdb.h]) | |
54 | AC_CHECK_DECLS([inet_ntop],,, | |
55 | [[#include <arpa/inet.h> | |
56 | #if HAVE_NETDB_H | |
57 | # include <netdb.h> | |
58 | #endif | |
59 | ]]) | |
60 | if test $ac_cv_have_decl_inet_ntop = no; then | |
61 | HAVE_DECL_INET_NTOP=0 | |
62 | fi | |
63 | fi | |
64 | AC_SUBST([INET_NTOP_LIB]) | |
65 | ]) | |
66 | ||
67 | # Prerequisites of lib/inet_ntop.c. | |
68 | AC_DEFUN([gl_PREREQ_INET_NTOP], [ | |
69 | AC_REQUIRE([gl_SOCKET_FAMILIES]) | |
70 | ]) |