Added version check

diff --git a/yazpp.m4 b/yazpp.m4
index a528936..63be11e 100644 (file)
--- a/yazpp.m4
+++ b/yazpp.m4
@@ -37,5 +37,16 @@ AC_DEFUN([YAZPP_INIT],
                 AC_MSG_RESULT(Not found)
                 YAZVERSION=NONE
         fi
+       if test "X$YAZPPVERSION" != "XNONE"; then
+               AC_MSG_CHECKING([for YAZ++ version])
+               AC_MSG_RESULT([$YAZPPVERSION])
+               if test "$2"; then
+                       have_yaz_version=`echo "$YAZPPVERSION" | awk 'BEGIN { FS = "."; } { printf "%d", ([$]1 * 1000 + [$]2) * 1000 + [$]3;}'`
+                       req_yaz_version=`echo "$2" | awk 'BEGIN { FS = "."; } { printf "%d", ([$]1 * 1000 + [$]2) * 1000 + [$]3;}'`
+                       if test "$have_yaz_version" -lt "$req_yaz_version"; then
+                               AC_MSG_ERROR([$YAZPPVERSION. Requires $2 or later])
+                       fi
+               fi
+       fi
 ])