OPENJDK env var not playing well with new build

[Erik Joelsson]

On 2013-01-23 11:30, Weijun Wang wrote:
> I thought building an OpenJDK or Oracle JDK can be fully controlled by 
> using the --enable-openjdk-only configure option, but it seems the 
> OPENJDK env variable still plays a part. If the variable is set to 
> true and --enable-openjdk-only is not provided, the new build process 
> gets confused and fails.
>
> I understand this is my fault and I should not have that variable 
> around. However, it will be nice if the build can deny all external 
> variables like it did with all those ALT_*** variables. Are there any 
> other variables I should be aware of?
>
This is bad, I agree. We initially kept the same variable for 
controlling if the build was OpenJDK only or not as the old build, 
because it made it easier during the conversion. The problem with this 
variable is that it is either set or not, which makes it harder to 
override in makefiles. The proper solution would be to replace this in 
the new build with something like OPENJDK_ONLY=true/false and completely 
ignore the old OPENJDK.

I can't remember any other variables right now, but it's quite possible 
there are more.

/Erik