-# inet_ntop.m4 serial 2
-dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+# inet_ntop.m4 serial 15
+dnl Copyright (C) 2005-2006, 2008-2011 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_INET_NTOP],
+AC_DEFUN([gl_FUNC_INET_NTOP],
[
- AC_REPLACE_FUNCS(inet_ntop)
- gl_PREREQ_INET_NTOP
+ dnl Persuade Solaris <arpa/inet.h> to declare inet_ntop.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+ dnl Most platforms that provide inet_ntop define it in libc.
+ dnl Solaris 8..10 provide inet_ntop in libnsl instead.
+ HAVE_INET_NTOP=1
+ gl_save_LIBS=$LIBS
+ AC_SEARCH_LIBS([inet_ntop], [nsl], [],
+ [AC_CHECK_FUNCS([inet_ntop])
+ if test $ac_cv_func_inet_ntop = no; then
+ HAVE_INET_NTOP=0
+ fi
+ ])
+ LIBS=$gl_save_LIBS
+
+ INET_NTOP_LIB=
+ if test "$ac_cv_search_inet_ntop" != "no" &&
+ test "$ac_cv_search_inet_ntop" != "none required"; then
+ INET_NTOP_LIB="$ac_cv_search_inet_ntop"
+ fi
+ AC_SUBST([INET_NTOP_LIB])
+
+ AC_CHECK_HEADERS_ONCE([netdb.h])
+ AC_CHECK_DECLS([inet_ntop],,,
+ [#include <arpa/inet.h>
+ #if HAVE_NETDB_H
+ # include <netdb.h>
+ #endif
+ ])
+ if test $ac_cv_have_decl_inet_ntop = no; then
+ HAVE_DECL_INET_NTOP=0
+ AC_REQUIRE([AC_C_RESTRICT])
+ fi
])
-# Prerequisites of lib/inet_ntop.h and lib/inet_ntop.c.
+# Prerequisites of lib/inet_ntop.c.
AC_DEFUN([gl_PREREQ_INET_NTOP], [
- AC_CHECK_HEADERS_ONCE(arpa/inet.h)
- AC_CHECK_DECLS([inet_ntop],,,[#include <arpa/inet.h>])
AC_REQUIRE([gl_SOCKET_FAMILIES])
])