applied patch from Liam Stewart

If one is trying to compile a JDBC 1 driver and junit.jar is in the
CLASSPATH, then the build fails as ant tries to build the JDBC 2 test
classes. This patch fixes this problem by excluding the jdbc 2 files
unless the jdk1.2+ property is set.

Author: Dave Cramer

src/interfaces/jdbc/build.xml

@@ -4,7 +4,7 @@
   build file to allow ant (http://jakarta.apache.org/ant/) to be used
   to build the PostgreSQL JDBC Driver
 
-  $Header: /cvsroot/pgsql/src/interfaces/jdbc/Attic/build.xml,v 1.21 2002/03/05 17:55:23 momjian Exp $
+  $Header: /cvsroot/pgsql/src/interfaces/jdbc/Attic/build.xml,v 1.22 2002/03/19 01:32:48 davec Exp $
 
 -->
 
@@ -99,6 +99,8 @@
       <exclude name="${package}/xa/**" unless="datasource" />
 
       <exclude name="${package}/test/**" unless="junit" />
+      <exclude name="${package}/test/jdbc2/**" unless="jdbc2" />
+      <exclude name="${package}/test/JDBC2Tests.java" unless="jdbc2" />
     </javac>
   </target>