# -*- autoconf -*-
-# Copyright (c) 2008, 2009 Nicira Networks.
+# Copyright (c) 2008, 2009, 2010 Nicira Networks.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
[KBUILD26="$withval"], [KBUILD26=])dnl
if test -n "$KBUILD26"; then
KBUILD26=`eval echo "$KBUILD26"`
+ case $KBUILD26 in
+ /*) ;;
+ *) KBUILD26=`pwd`/$KBUILD26 ;;
+ esac
# The build directory is what the user provided.
# Make sure that it exists.
AC_MSG_CHECKING([for Linux 2.6 source directory])
KSRC26=$KBUILD26
if test ! -e $KSRC26/include/linux/kernel.h; then
- KSRC26=`(cd $KBUILD26 && pwd -P) | sed 's,-[[^-]]*$,-common,'`
+ case `echo "$KBUILD26" | sed 's,/*$,,'` in # (
+ */build)
+ KSRC26=`echo "$KBUILD26" | sed 's,/build/*$,/source,'`
+ ;; # (
+ *)
+ KSRC26=`(cd $KBUILD26 && pwd -P) | sed 's,-[[^-]]*$,-common,'`
+ ;;
+ esac
if test ! -e $KSRC26/include/linux/kernel.h; then
AC_MSG_ERROR([cannot find source directory])
fi
AC_ERROR([Linux kernel in build tree $KBUILD26 (source tree $KSRC26) is not version 2.6])
fi
fi
- if ! test -e "$KBUILD26"/include/linux/version.h || \
- ! test -e "$KBUILD26"/include/linux/autoconf.h; then
+ if test ! -e "$KBUILD26"/include/linux/version.h || \
+ (test ! -e "$KBUILD26"/include/linux/autoconf.h && \
+ test ! -e "$KBUILD26"/include/generated/autoconf.h); then
AC_MSG_ERROR([Linux kernel source in $KBUILD26 is not configured])
fi
OVS_CHECK_LINUX26_COMPAT
fi
])
-AC_DEFUN([OVS_CHECK_GRE], [
- AC_MSG_CHECKING([whether to build gre module])
- if test "$sublevel" -ge 18; then
- AC_MSG_RESULT([yes])
- AC_SUBST([BUILD_GRE], 1)
- else
- AC_MSG_RESULT([no])
- fi
-])
-
AC_DEFUN([OVS_CHECK_LOG2_H], [
AC_MSG_CHECKING([for $KSRC26/include/linux/log2.h])
if test -e $KSRC26/include/linux/log2.h; then
rm -f datapath/linux-2.6/kcompat.h.new
mkdir -p datapath/linux-2.6
: > datapath/linux-2.6/kcompat.h.new
- OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_transport_header],
- [OVS_DEFINE([HAVE_SKBUFF_HEADER_HELPERS])])
- OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [raw],
- [OVS_DEFINE([HAVE_MAC_RAW])])
- OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h],
- [skb_copy_from_linear_data_offset],
- [OVS_DEFINE([HAVE_SKB_COPY_FROM_LINEAR_DATA_OFFSET])])
- OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [NLA_NUL_STRING],
- [OVS_DEFINE([HAVE_NLA_NUL_STRING])])
+
OVS_GREP_IFELSE([$KSRC26/include/linux/err.h], [ERR_CAST],
[OVS_DEFINE([HAVE_ERR_CAST])])
- OVS_GREP_IFELSE([$KSRC26/include/net/checksum.h], [csum_unfold],
- [OVS_DEFINE([HAVE_CSUM_UNFOLD])])
- OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_cow],
- [OVS_DEFINE([HAVE_SKB_COW])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/linux/in.h], [ipv4_is_multicast],
+ [OVS_DEFINE([HAVE_IPV4_IS_MULTICAST])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/linux/netdevice.h], [dev_disable_lro],
+ [OVS_DEFINE([HAVE_DEV_DISABLE_LRO])])
+
# Check for the proto_data_valid member in struct sk_buff. The [^@]
# is necessary because some versions of this header remove the
# member but retain the kerneldoc comment that describes it (which
# quoting rules.
OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [[[^@]]proto_data_valid],
[OVS_DEFINE([HAVE_PROTO_DATA_VALID])])
+ OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [raw],
+ [OVS_DEFINE([HAVE_MAC_RAW])])
+ OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_dst(],
+ [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])])
+ OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h],
+ [skb_copy_from_linear_data_offset],
+ [OVS_DEFINE([HAVE_SKB_COPY_FROM_LINEAR_DATA_OFFSET])])
+ OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_cow],
+ [OVS_DEFINE([HAVE_SKB_COW])])
+ OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_transport_header],
+ [OVS_DEFINE([HAVE_SKBUFF_HEADER_HELPERS])])
+ OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_warn_if_lro],
+ [OVS_DEFINE([HAVE_SKB_WARN_LRO])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/linux/string.h $KSRC26/include/linux/slab.h],
+ [kmemdup], [OVS_DEFINE([HAVE_KMEMDUP])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/linux/types.h], [bool],
+ [OVS_DEFINE([HAVE_BOOL_TYPE])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/net/checksum.h], [csum_unfold],
+ [OVS_DEFINE([HAVE_CSUM_UNFOLD])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [NLA_NUL_STRING],
+ [OVS_DEFINE([HAVE_NLA_NUL_STRING])])
+ OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [nla_get_be16],
+ [OVS_DEFINE([HAVE_NLA_GET_BE16])])
+
OVS_CHECK_LOG2_H
OVS_CHECK_VETH
- OVS_CHECK_GRE
+
if cmp -s datapath/linux-2.6/kcompat.h.new \
datapath/linux-2.6/kcompat.h >/dev/null 2>&1; then
rm datapath/linux-2.6/kcompat.h.new
char *token1, *token2;
token1 = strtok_r(string, ":", &save_ptr);
token2 = strtok_r(NULL, ":", &save_ptr);
+ freopen ("/dev/null", "w", stdout);
printf ("%s %s\n", token1, token2);
return 0;
]])],
AC_DEFUN([OVS_ENABLE_OPTION],
[OVS_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"])
AC_SUBST([WARNING_FLAGS])])
+
+dnl OVS_CONDITIONAL_CC_OPTION([OPTION], [CONDITIONAL])
+dnl Check whether the given C compiler OPTION is accepted.
+dnl If so, enable the given Automake CONDITIONAL.
+
+dnl Example: OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED])
+AC_DEFUN([OVS_CONDITIONAL_CC_OPTION],
+ [OVS_CHECK_CC_OPTION(
+ [$1], [ovs_have_cc_option=yes], [ovs_have_cc_option=no])
+ AM_CONDITIONAL([$2], [test $ovs_have_cc_option = yes])])
dnl ----------------------------------------------------------------------
git://git.onelab.eu / sliver-openvswitch.git / blobdiff