From 0d32c5c070f817229110f92d7b31df9a3e4eeec5 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Sun, 24 Oct 2010 21:42:48 +0200
Subject: Fixes, cleanups, comments

- More comments added to the code
- ICMP and ICMPv6 support added to the hash:ip,port, hash:ip,port,ip
  and hash:ip,port,net types
- hash:net and hash:ip,port,net types are reworked
- hash:net,port type added
- Wrong direction parameters fixed in hash:ip,port
- Helps and manpage are updated
- More tests added
- Ugly macros are rewritten to functions in parse.c
  (Holger Eitzenberger)
- resize related bug in hash types fixed (Holger Eitzenberger)
- autoreconf patches by Jan Engelhardt applied
- netlink patch minimalized: dumping can be initialized by a second
  parsing of the message (thanks to David and Patrick for the suggestion)
- IPv4/IPv6 address attributes are introduced in order to fix the context
  (suggested by David)
---
 configure.ac | 40 +++++++++++++++++++++++++---------------
 1 file changed, 25 insertions(+), 15 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 7622ac4..38164cf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,8 +1,9 @@
 dnl Boilerplate
 AC_INIT([ipset], [5.0], [kadlec@blackhole.kfki.hu])
-AC_CANONICAL_SYSTEM
+AC_CANONICAL_TARGET
+AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADER([config.h])
-AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects])
 
 dnl Shortcut: Linux supported alone
 case $target in
@@ -12,10 +13,14 @@ esac
 
 dnl Additional arguments
 dnl Kernel build directory or source tree
-AC_ARG_WITH([kernel],
-	    AS_HELP_STRING([--with-kernel=PATH],
-	    		   [Path to kernel source/build directory]),
-	    [KBUILDDIR="$withval";])
+AC_ARG_WITH([kbuild],
+            AS_HELP_STRING([--with-kbuild=PATH],
+                           [Path to kernel build directory]),
+            [KBUILDDIR="$withval";])
+AC_ARG_WITH([ksource],
+            AS_HELP_STRING([--with-ksource=PATH],
+                           [Path to kernel source directory, if not the same as the kernel build directory]),
+            [KSOURCEDIR="$withval";])
 AM_CONDITIONAL(WITH_KBUILDDIR, test "$KBUILDDIR" != "")
 AC_SUBST(KBUILDDIR)
 
@@ -27,9 +32,16 @@ else
 	kbuilddir="/lib/modules/`uname -r`/build"
 fi
 
-if test ! -e "$kbuilddir/include/linux/netfilter/nfnetlink.h"
+if test -n "$KSOURCEDIR"; then
+	ksourcedir="$KSOURCEDIR"
+elif test -e "$kbuilddir/include/linux/netfilter/nfnetlink.h"; then
+	ksourcedir="$kbuilddir"
+else
+	ksourcedir="/lib/modules/$(uname -r)/source"
+fi
+if test ! -e "$ksourcedir/include/linux/netfilter/nfnetlink.h"
 then
-	AC_MSG_ERROR([Invalid kernel build directory $kbuilddir])
+	AC_MSG_ERROR([Invalid kernel source directory $ksourcedir])
 fi
 
 if test ! -e "$kbuilddir/.config"
@@ -45,11 +57,11 @@ then
 fi
 
 dnl Check kernel dependencies: nfnetlink.h
-NFNL_CB_CONST="`./check_const $kbuilddir/include/linux/netfilter/nfnetlink.h`"
+NFNL_CB_CONST="`./check_const $ksourcedir/include/linux/netfilter/nfnetlink.h`"
 AC_SUBST(NFNL_CB_CONST)
 
 dnl Check kernel dependencies: netlink.h
-NETLINK_DUMP_CONST="`./check_const $kbuilddir/include/linux/netlink.h`"
+NETLINK_DUMP_CONST="`./check_const $ksourcedir/include/linux/netlink.h`"
 AC_SUBST(NETLINK_DUMP_CONST)
 
 dnl Maximal number of sets supported by the kernel, default 256
@@ -98,15 +110,13 @@ AM_CONDITIONAL([DISABLE_EXTRA_FLAGS], [test "x$extra_flags" = xno])
 
 dnl Checks for programs
 AC_PROG_CC
-AC_PROG_LIBTOOL
+AM_PROG_CC_C_O
+LT_INIT
 AC_PROG_INSTALL
 AC_PROG_LN_S
 
 dnl Checks for libraries
-AC_CHECK_LIB([mnl], [mnl_socket_open])
-if test x"${ac_cv_lib_mnl_mnl_socket_open}" = xno; then
-  AC_MSG_ERROR(libmnl not found)
-fi
+PKG_CHECK_MODULES([libmnl], [libmnl >= 1])
 
 dnl Checks for header files
 
-- 
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