Ben Pfaff
69 lines
2.7 KiB
Plaintext
69 lines
2.7 KiB
Plaintext
# Copyright (c) 2008 The Board of Trustees of The Leland Stanford
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# Junior University
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#
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# We are making the OpenFlow specification and associated documentation
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# (Software) available for public use and benefit with the expectation
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# that others will use, modify and enhance the Software and contribute
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# those enhancements back to the community. However, since we would
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# like to make the Software available for broadest use, with as few
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# restrictions as possible permission is hereby granted, free of
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# charge, to any person obtaining a copy of this Software to deal in
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# the Software under the copyrights without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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# The name and trademarks of copyright holder(s) may NOT be used in
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# advertising or publicity pertaining to the Software or any
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# derivatives without specific, written prior permission.
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dnl --
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dnl CHECK_LINUX(OPTION, VERSION, VARIABLE, CONDITIONAL)
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dnl
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dnl Configure linux kernel source tree
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dnl --
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AC_DEFUN([CHECK_LINUX], [
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AC_ARG_WITH([$1],
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[AC_HELP_STRING([--with-$1=/path/to/linux-$3],
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[Specify the linux $3 kernel sources])],
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[path="$withval"], [path=])dnl
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if test -n "$path"; then
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path=`eval echo "$path"`
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AC_MSG_CHECKING([for $path directory])
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if test -d "$path"; then
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AC_MSG_RESULT([yes])
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$4=$path
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AC_SUBST($4)
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else
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AC_MSG_RESULT([no])
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AC_ERROR([source dir $path doesn't exist])
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fi
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AC_MSG_CHECKING([for $path kernel version])
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version=`grep '^PATCHLEVEL = ' "$path/Makefile" | sed 's/PATCHLEVEL = '//`
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AC_MSG_RESULT([2.$version])
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if test "2.$version" != '$3'; then
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AC_ERROR([Linux kernel source in $path is not version $3])
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fi
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if ! test -e "$path"/include/linux/version.h || \
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! test -e "$path"/include/linux/autoconf.h; then
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AC_MSG_ERROR([Linux kernel source in $path is not configured])
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fi
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fi
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AM_CONDITIONAL($5, test -n "$path")
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])
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