Cassandra 2.0 : Ant build issue

[Soumava Ghosh]

Hi,

I'm working on a Mac OS 10.8 and trying to build the cassandra trunk using
ant. I am getting the error as below. I can see a related bug that fixed a
similar issue for debian (
https://issues.apache.org/jira/browse/CASSANDRA-5688), but I can still
repro this on Mac.

Thanks,
Soumava

soumava$ git describe
cassandra-2.0.0-beta1-100-ge0eacd2
...
soumava$ ant
...
gen-cql3-grammar:
     [echo] Building Grammar
/Users/soumava/Documents/src/git-cassandra/src/java/org/apache/cassandra/cql3/Cql.g
 ...

build-project:
     [echo] apache-cassandra:
/Users/soumava/Documents/src/git-cassandra/build.xml
    [javac] Compiling 17 source files to
/Users/soumava/Documents/src/git-cassandra/build/classes/thrift
    [javac] javac: invalid target release: 1.7
    [javac] Usage: javac <options> <source files>
    [javac] use -help for a list of possible options

BUILD FAILED
/Users/soumava/Documents/src/git-cassandra/build.xml:636: Compile failed;
see the compiler error output for details.

Total time: 7 seconds