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# 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_FUNC_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.c.
AC_DEFUN([gl_PREREQ_INET_NTOP], [
AC_REQUIRE([gl_SOCKET_FAMILIES])
])
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