--- mysql.m4.old	2010-09-06 17:37:44.000000000 +0200
+++ mysql.m4	2010-09-06 17:38:19.000000000 +0200
@@ -63,9 +63,9 @@
 
         dnl Decompose required version string of MySQL
         dnl and calculate its number representation
-        mysql_version_req_major=`expr $mysql_version_req : '\([[0-9]]*\)'`
-        mysql_version_req_minor=`expr $mysql_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
-        mysql_version_req_micro=`expr $mysql_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
+        mysql_version_req_major=`expr $mysql_version_req : '\([0-9]*\)'`
+        mysql_version_req_minor=`expr $mysql_version_req : '[0-9]*\.\([0-9]*\)'`
+        mysql_version_req_micro=`expr $mysql_version_req : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
         if test "x$mysql_version_req_micro" = "x"; then
             mysql_version_req_micro="0"
         fi
@@ -76,9 +76,9 @@
 
         dnl Decompose version string of installed MySQL
         dnl and calculate its number representation
-        mysql_version_major=`expr $MYSQL_VERSION : '\([[0-9]]*\)'`
-        mysql_version_minor=`expr $MYSQL_VERSION : '[[0-9]]*\.\([[0-9]]*\)'`
-        mysql_version_micro=`expr $MYSQL_VERSION : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
+        mysql_version_major=`expr $MYSQL_VERSION : '\([0-9]*\)'`
+        mysql_version_minor=`expr $MYSQL_VERSION : '[0-9]*\.\([0-9]*\)'`
+        mysql_version_micro=`expr $MYSQL_VERSION : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
         if test "x$mysql_version_micro" = "x"; then
             mysql_version_micro="0"
         fi