-# getaddrinfo.m4 serial 2
-dnl Copyright (C) 2004 Free Software Foundation, Inc.
+# getaddrinfo.m4 serial 16
+dnl Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_GETADDRINFO],
[
- AC_SEARCH_LIBS(getaddrinfo, nsl socket)
- AC_REPLACE_FUNCS(getaddrinfo)
+ AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
+ AC_REQUIRE([gl_HEADER_NETDB])dnl for HAVE_NETDB_H
+ AC_MSG_NOTICE([checking how to do getaddrinfo, freeaddrinfo and getnameinfo])
+
+ AC_SEARCH_LIBS(getaddrinfo, [nsl socket])
+ AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [
+ AC_TRY_LINK([
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#include <stddef.h>
+], [getaddrinfo("", "", NULL, NULL);],
+ [gl_cv_func_getaddrinfo=yes],
+ [gl_cv_func_getaddrinfo=no])])
+ if test $gl_cv_func_getaddrinfo = no; then
+ AC_CACHE_CHECK(for getaddrinfo in ws2tcpip.h and -lws2_32,
+ gl_cv_w32_getaddrinfo, [
+ gl_cv_w32_getaddrinfo=no
+ am_save_LIBS="$LIBS"
+ LIBS="$LIBS -lws2_32"
+ AC_TRY_LINK([
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
+#endif
+#include <stddef.h>
+], [getaddrinfo(NULL, NULL, NULL, NULL);], gl_cv_w32_getaddrinfo=yes)
+ LIBS="$am_save_LIBS"])
+ if test "$gl_cv_w32_getaddrinfo" = "yes"; then
+ LIBS="$LIBS -lws2_32"
+ else
+ AC_LIBOBJ(getaddrinfo)
+ fi
+ fi
+
+ # We can't use AC_REPLACE_FUNCS here because gai_strerror may be an
+ # inline function declared in ws2tcpip.h, so we need to get that
+ # header included somehow.
+ AC_CACHE_CHECK([for gai_strerror (possibly via ws2tcpip.h)],
+ gl_cv_func_gai_strerror, [
+ AC_TRY_LINK([
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
+#endif
+#include <stddef.h>
+], [gai_strerror (NULL);],
+ [gl_cv_func_gai_strerror=yes],
+ [gl_cv_func_gai_strerror=no])])
+ if test $gl_cv_func_gai_strerror = no; then
+ AC_LIBOBJ(gai_strerror)
+ fi
+
gl_PREREQ_GETADDRINFO
])
-# Prerequisites of lib/getaddrinfo.h and lib/getaddrinfo.c.
+# Prerequisites of lib/getaddrinfo.c.
AC_DEFUN([gl_PREREQ_GETADDRINFO], [
- AC_REQUIRE([gl_C_RESTRICT])
+ AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
+ AC_SEARCH_LIBS(gethostbyname, [inet nsl])
+ AC_SEARCH_LIBS(getservbyname, [inet nsl socket xnet])
+ AC_CHECK_FUNCS(gethostbyname,, [
+ AC_CACHE_CHECK(for gethostbyname in winsock2.h and -lws2_32,
+ gl_cv_w32_gethostbyname, [
+ gl_cv_w32_gethostbyname=no
+ am_save_LIBS="$LIBS"
+ LIBS="$LIBS -lws2_32"
+ AC_TRY_LINK([
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#endif
+#include <stddef.h>
+], [gethostbyname(NULL);], gl_cv_w32_gethostbyname=yes)
+ LIBS="$am_save_LIBS"])
+ if test "$gl_cv_w32_gethostbyname" = "yes"; then
+ LIBS="$LIBS -lws2_32"
+ fi
+ ])
+ AC_REQUIRE([AC_C_RESTRICT])
AC_REQUIRE([gl_SOCKET_FAMILIES])
+ AC_REQUIRE([gl_HEADER_SYS_SOCKET])
AC_REQUIRE([AC_C_INLINE])
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ dnl Including sys/socket.h is wrong for Windows, but Windows does not
+ dnl have sa_len so the result is correct anyway.
+ AC_CHECK_MEMBERS([struct sockaddr.sa_len], , , [#include <sys/socket.h>])
+
+ AC_CHECK_HEADERS_ONCE(netinet/in.h)
+ AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, gai_strerror, getnameinfo],,,[
+ /* sys/types.h is not needed according to POSIX, but the
+ sys/socket.h in i386-unknown-freebsd4.10 and
+ powerpc-apple-darwin5.5 required it. */
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
+#endif
+])
+ AC_CHECK_TYPES([struct addrinfo],,,[
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
+#endif
+])
])