netdev: New function netdev_exists().

[openvswitch] / m4 / openvswitch.m4

diff --git a/m4/openvswitch.m4 b/m4/openvswitch.m4
index 7b23516a4049f4ffad07ec839886aeb094b27735..3fe053b06d935046d635a1acb25e04129bdbcc15 100644 (file)
--- a/m4/openvswitch.m4
+++ b/m4/openvswitch.m4
@@ -2,17 +2,42 @@
 
 # Copyright (c) 2008, 2009 Nicira Networks.
 #
-# Permission to use, copy, modify, and/or distribute this software for any
-# purpose with or without fee is hereby granted, provided that the above
-# copyright notice and this permission notice appear in all copies.
+# 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:
 #
-# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#     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 Checks for --enable-coverage and updates CFLAGS and LDFLAGS appropriately.
+AC_DEFUN([OVS_CHECK_COVERAGE],
+  [AC_REQUIRE([AC_PROG_CC])
+   AC_ARG_ENABLE(
+     [coverage],
+     [AC_HELP_STRING([--enable-coverage], 
+                     [Enable gcov coverage tool.])],
+     [case "${enableval}" in
+        (lcov) coverage=true lcov=true ;;
+        (yes) coverage=true lcov=false ;;
+        (no)  coverage=false lcov=false ;;
+        (*) AC_MSG_ERROR([bad value ${enableval} for --enable-coverage]) ;;
+      esac],
+     [coverage=false lcov=false])
+   if $coverage; then
+     CFLAGS="$CFLAGS -O0 --coverage"
+     LDFLAGS="$LDFLAGS --coverage"
+   fi
+   if $lcov; then
+     if lcov --version >/dev/null 2>&1; then :; else
+       AC_MSG_ERROR([--enable-coverage=lcov was specified but lcov is not in \$PATH])
+     fi
+   fi
+   AC_SUBST([LCOV], [$lcov])])
 
 dnl Checks for --enable-ndebug and defines NDEBUG if it is specified.
 AC_DEFUN([OVS_CHECK_NDEBUG],