Review Request : 7143162 : Allow disable building of jdk demos and samples

[Mike Duigou]

Hello all;

WEBREV @ http://cr.openjdk.java.net/~mduigou/7143162/1/webrev/

An updated version of my previous webrev. I'm reposting it because this version includes a previously missing bit from the top level sanity makefile that produce warning notices when demos and samples are turned off similar to the NO_DOCS javadoc warning. Also includes a correction in Release.gmk.

Overall this is fairly simple patch for review. It allows developers to shut off building of the jdk demos and samples. Disabling these builds has a very positive impact upon build turnaround for incremental builds. Export NO_DEMOS and/or NO_SAMPLES in your shell before running make and demos and/or samples will be skipped.

The default behaviour remains unchanged.

Thanks,

Mike