1# inet_ntop.m4 serial 19 2dnl Copyright (C) 2005-2006, 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_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. 19 dnl Native Windows provides it in -lws2_32 instead, with a declaration in 20 dnl <ws2tcpip.h>, and it uses stdcall calling convention, not cdecl 21 dnl (hence we cannot use AC_CHECK_FUNCS, AC_SEARCH_LIBS to find it). 22 HAVE_INET_NTOP=1 23 INET_NTOP_LIB= 24 gl_PREREQ_SYS_H_WINSOCK2 25 if test $HAVE_WINSOCK2_H = 1; then 26 AC_CHECK_DECLS([inet_ntop],,, [[#include <ws2tcpip.h>]]) 27 if test $ac_cv_have_decl_inet_ntop = yes; then 28 dnl It needs to be overridden, because the stdcall calling convention 29 dnl is not compliant with POSIX. 30 REPLACE_INET_NTOP=1 31 INET_NTOP_LIB="-lws2_32" 32 else 33 HAVE_DECL_INET_NTOP=0 34 HAVE_INET_NTOP=0 35 fi 36 else 37 gl_save_LIBS=$LIBS 38 AC_SEARCH_LIBS([inet_ntop], [nsl resolv], [], 39 [AC_CHECK_FUNCS([inet_ntop]) 40 if test $ac_cv_func_inet_ntop = no; then 41 HAVE_INET_NTOP=0 42 fi 43 ]) 44 LIBS=$gl_save_LIBS 45 46 if test "$ac_cv_search_inet_ntop" != "no" \ 47 && test "$ac_cv_search_inet_ntop" != "none required"; then 48 INET_NTOP_LIB="$ac_cv_search_inet_ntop" 49 fi 50 51 AC_CHECK_HEADERS_ONCE([netdb.h]) 52 AC_CHECK_DECLS([inet_ntop],,, 53 [[#include <arpa/inet.h> 54 #if HAVE_NETDB_H 55 # include <netdb.h> 56 #endif 57 ]]) 58 if test $ac_cv_have_decl_inet_ntop = no; then 59 HAVE_DECL_INET_NTOP=0 60 fi 61 fi 62 AC_SUBST([INET_NTOP_LIB]) 63]) 64 65# Prerequisites of lib/inet_ntop.c. 66AC_DEFUN([gl_PREREQ_INET_NTOP], [ 67 AC_REQUIRE([gl_SOCKET_FAMILIES]) 68]) 69