-# inet_pton.m4 serial 6
-dnl Copyright (C) 2006, 2008 Free Software Foundation, Inc.
+# inet_pton.m4 serial 11
+dnl Copyright (C) 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_PTON],
+AC_DEFUN([gl_FUNC_INET_PTON],
[
dnl Persuade Solaris <arpa/inet.h> to declare inet_pton.
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
gl_REPLACE_ARPA_INET_H
- AC_REPLACE_FUNCS(inet_pton)
+ dnl Most platforms that provide inet_pton define it in libc.
+ dnl Solaris 8..10 provide inet_pton in libnsl instead.
+ gl_save_LIBS=$LIBS
+ AC_SEARCH_LIBS([inet_pton], [nsl], [],
+ [AC_REPLACE_FUNCS([inet_pton])])
+ LIBS=$gl_save_LIBS
+ INET_PTON_LIB=
+ if test "$ac_cv_search_inet_pton" != "no" &&
+ test "$ac_cv_search_inet_pton" != "none required"; then
+ INET_PTON_LIB="$ac_cv_search_inet_pton"
+ fi
+ AC_SUBST([INET_PTON_LIB])
+
gl_PREREQ_INET_PTON
])
# Prerequisites of lib/inet_pton.c.
AC_DEFUN([gl_PREREQ_INET_PTON], [
- AC_CHECK_DECLS([inet_pton],,,[#include <arpa/inet.h>])
+ AC_CHECK_HEADERS_ONCE([netdb.h])
+ AC_CHECK_DECLS([inet_pton],,,
+ [#include <arpa/inet.h>
+ #if HAVE_NETDB_H
+ # include <netdb.h>
+ #endif
+ ])
if test $ac_cv_have_decl_inet_pton = no; then
HAVE_DECL_INET_PTON=0
fi