-# getaddrinfo.m4 serial 13
+# getaddrinfo.m4 serial 15
dnl Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
AC_MSG_NOTICE([checking how to do getaddrinfo, freeaddrinfo and getnameinfo])
+ AC_CHECK_HEADERS_ONCE(netdb.h)
+
AC_SEARCH_LIBS(getaddrinfo, [nsl socket])
- AC_CHECK_FUNCS(getaddrinfo,, [
+ 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 $gl_cv_func_getaddrinfo = no; then
AC_CACHE_CHECK(for getaddrinfo in ws2tcpip.h and -lws2_32,
gl_cv_w32_getaddrinfo, [
gl_cv_w32_getaddrinfo=no
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
-], [getaddrinfo(0, 0, 0, 0);], gl_cv_w32_getaddrinfo=yes)
+#include <stddef.h>
+], [getaddrinfo(NULL, NULL, NULL, NULL);], gl_cv_w32_getaddrinfo=yes)
LIBS="$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_CHECK_HEADERS_ONCE(netdb.h)
AC_CACHE_CHECK([for gai_strerror (possibly via ws2tcpip.h)],
gl_cv_func_gai_strerror, [
AC_TRY_LINK([
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
-], [gai_strerror (0);],
+#include <stddef.h>
+], [gai_strerror (NULL);],
[gl_cv_func_gai_strerror=yes],
[gl_cv_func_gai_strerror=no])])
if test $gl_cv_func_gai_strerror = no; then
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
-], [gethostbyname(0);], gl_cv_w32_gethostbyname=yes)
+#include <stddef.h>
+], [gethostbyname(NULL);], gl_cv_w32_gethostbyname=yes)
LIBS="$am_save_LIBS"])
if test "$gl_cv_w32_gethostbyname" = "yes"; then
LIBS="$LIBS -lws2_32"