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configure: Add --with-l26-source option to specify source dir explicitly.

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OVS can usually find the kernel source itself, but when it can't it's
handy if the user can just specify it on the "configure" command line.

Signed-off-by: Ian Campbell <Ian.Campbell@citrix.com>.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Reported-by: Jad Naous <jnaous@gmail.com>
This commit is contained in:
Ben Pfaff 2010-07-02 10:10:04 -07:00
parent dd0d105ccb
commit f5fb5de6be
2 changed files with 31 additions and 11 deletions
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1
AUTHORS
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@ -32,6 +32,7 @@ Brandon Heller brandonh@stanford.edu
Cedric Hobbs cedric@nicira.com
Ghanem Bahri bahri.ghanem@gmail.com
Henrik Amren henrik@nicira.com
Jad Naous jnaous@gmail.com
Jan Medved jmedved@juniper.net
Jeongkeun Lee jklee@hp.com
Joan Cirer joan@ev0.net

41
acinclude.m4
View File

@ -20,8 +20,14 @@ dnl Configure linux kernel source tree
AC_DEFUN([OVS_CHECK_LINUX26], [
AC_ARG_WITH([l26],
[AC_HELP_STRING([--with-l26=/path/to/linux-2.6],
[Specify the linux 2.6 kernel sources])],
[Specify the linux 2.6 kernel build directory])],
[KBUILD26="$withval"], [KBUILD26=])dnl
AC_ARG_WITH([l26-source],
[AC_HELP_STRING([--with-l26-source=/path/to/linux-2.6-source],
[Specify the linux 2.6 kernel source directory
(usually figured out automatically from build
directory)])],
[KSRC26="$withval"], [KSRC26=])dnl
if test -n "$KBUILD26"; then
KBUILD26=`eval echo "$KBUILD26"`
case $KBUILD26 in
@ -44,18 +50,29 @@ AC_DEFUN([OVS_CHECK_LINUX26], [
# We want the source headers, but $KBUILD26 gives us the "build" headers.
# Use heuristics to find the source headers.
AC_MSG_CHECKING([for Linux 2.6 source directory])
KSRC26=$KBUILD26
if test ! -e $KSRC26/include/linux/kernel.h; then
case `echo "$KBUILD26" | sed 's,/*$,,'` in # (
*/build)
KSRC26=`echo "$KBUILD26" | sed 's,/build/*$,/source,'`
;; # (
*)
KSRC26=`(cd $KBUILD26 && pwd -P) | sed 's,-[[^-]]*$,-common,'`
;;
if test -n "$KSRC26"; then
KSRC26=`eval echo "$KSRC26"`
case $KSRC26 in
/*) ;;
*) KSRC26=`pwd`/$KSRC26 ;;
esac
if test ! -e $KSRC26/include/linux/kernel.h; then
AC_MSG_ERROR([cannot find source directory])
AC_MSG_ERROR([$KSRC26 is not a kernel source directory)])
fi
else
KSRC26=$KBUILD26
if test ! -e $KSRC26/include/linux/kernel.h; then
case `echo "$KBUILD26" | sed 's,/*$,,'` in # (
*/build)
KSRC26=`echo "$KBUILD26" | sed 's,/build/*$,/source,'`
;; # (
*)
KSRC26=`(cd $KBUILD26 && pwd -P) | sed 's,-[[^-]]*$,-common,'`
;;
esac
fi
if test ! -e $KSRC26/include/linux/kernel.h; then
AC_MSG_ERROR([cannot find source directory (please use --with-l26-source)])
fi
fi
AC_MSG_RESULT([$KSRC26])
@ -80,6 +97,8 @@ AC_DEFUN([OVS_CHECK_LINUX26], [
AC_MSG_ERROR([Linux kernel source in $KBUILD26 is not configured])
fi
OVS_CHECK_LINUX26_COMPAT
elif test -n "$KSRC26"; then
AC_MSG_ERROR([--with-l26-source may not be specified without --with-l26])
fi
AM_CONDITIONAL(L26_ENABLED, test -n "$KBUILD26")
])