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# -*- autoconf -*-
# Copyright (c) 2008 Nicira Networks.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
dnl NX_BUILDNR
dnl
dnl If --with-build-number=NUMBER is used, substitutes a Makefile
dnl variable BUILDNR with NUMBER, and sets a C preprocessor variable
dnl BUILDNR to "+buildNUMBER".
dnl
dnl Otherwise, if --with-build-number is not used, substitutes BUILDNR
dnl with 0 and sets C preprocessor variable BUILDNR to "".
AC_DEFUN([NX_BUILDNR],
[AC_ARG_WITH(
[build-number],
[AS_HELP_STRING([--with-build-number=NUMBER],
[Official build number (default is none)])])
AC_MSG_CHECKING([build number])
case $with_build_number in # (
[[0-9]] | \
[[0-9]][[0-9]] | \
[[0-9]][[0-9]][[0-9]] | \
[[0-9]][[0-9]][[0-9]][[0-9]] | \
[[0-9]][[0-9]][[0-9]][[0-9]][[0-9]])
BUILDNR=$with_build_number
buildnr='"+build'$BUILDNR'"'
AC_MSG_RESULT([$with_build_number])
;; # (
''|no)
BUILDNR=0
buildnr='""'
AC_MSG_RESULT([none])
;; # (
*)
AC_MSG_ERROR([invalid build number $with_build_number])
;;
esac
AC_SUBST([BUILDNR])
AC_DEFINE_UNQUOTED([BUILDNR], [$buildnr],
[Official build number as a VERSION suffix string, e.g. "+build123",
or "" if this is not an official build.])])
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