Need reviewer: No fastdebug builds by default

[David Katleman (Oracle)]

Looks fine Kelly.

        Dave

Kelly O'Hair wrote:
> Need reviewer: No fastdebug builds by default
>
> One word change. Default builds from the root will be faster due to 
> not building the fastdebug images.
>
> This change is in the open repository but will only impact our closed 
> jdk builds.
> Currently when building the openjdk from the top of the forest, it 
> only builds one image, the so
> called "product" image. This change does the same for closed jdk7 builds.
>
> FYI.. The fastdebug builds are built with slightly lower native 
> compiler optimization levels,
> all assert checking enabled, and include more debug information. The 
> java classes may also
> include local variable debugging information. These are mostly for 
> developers but can be used
> to isolate runtime issues in a jdk.
>
> Anyone wanting both builds or the old behavior would need to use:
>    make SKIP_FASTDEBUG_BUILD=false
>
>
> 7014634: By default, only build the product bits with a closed jdk 
> build (like openjdk does)
> http://cr.openjdk.java.net/~ohair/openjdk7/jdk7-build-nofastdebug/webrev/
>
> -kto
>