build: Allow building with autoconf 2.63

[cascardo/ovs.git] / m4 / openvswitch.m4

diff --git a/m4/openvswitch.m4 b/m4/openvswitch.m4
index 7a0465b..1308d1c 100644 (file)
--- a/m4/openvswitch.m4
+++ b/m4/openvswitch.m4
@@ -13,6 +13,8 @@
 # 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.
+#
+m4_include([m4/compat.at])
 
 dnl Checks for --enable-coverage and updates CFLAGS and LDFLAGS appropriately.
 AC_DEFUN([OVS_CHECK_COVERAGE],
@@ -63,6 +65,27 @@ AC_DEFUN([OVS_CHECK_WIN32],
                    [WIN32=no])
    AM_CONDITIONAL([WIN32], [test "$WIN32" = yes])
    if test "$WIN32" = yes; then
+      AC_ARG_WITH([pthread],
+         [AS_HELP_STRING([--with-pthread=DIR],
+            [root of the pthread-win32 directory])],
+         [
+            case "$withval" in
+            "" | y | ye | yes | n | no)
+            AC_MSG_ERROR([Invalid --with-pthread value])
+              ;;
+            *)
+            PTHREAD_INCLUDES="-I$withval/include"
+            PTHREAD_LDFLAGS="-L$withval/lib/x86"
+            PTHREAD_LIBS="-lpthreadVC2"
+            AC_SUBST([PTHREAD_INCLUDES])
+            AC_SUBST([PTHREAD_LDFLAGS])
+            AC_SUBST([PTHREAD_LIBS])
+              ;;
+            esac
+         ], [
+            AC_MSG_ERROR([pthread directory not specified])
+         ]
+      )
       AC_DEFINE([WIN32], [1], [Define to 1 if building on WIN32.])
       AH_BOTTOM([#ifdef WIN32
 #include "include/windows/windefs.h"