Build change to support cross architecture modules build

[Mandy Chung]

Thanks, Kelly and Alan, for the review.

Mandy

On 03/16/10 13:49, Alan Bateman wrote:
> Mandy Chung wrote:
>> Hi Kelly,
>>
>> This is the build change we discussed to support building modules when 
>> the jdk is built for a target architecture different than that of the 
>> host system.  Thanks for the suggestion of the make variable names.
>>
>> Summary:
>> jmod needs to run during the modules build to install modules that 
>> depends on the jigsaw module system.  jigsaw has native code and hence 
>> we can't use the bootclasspath trick for jmod as used by JAVAC_CMD. 
>> This fix defines a new JDK_HOST_PATH that set to OUTPUTDIR by default 
>> and several HOST_tool_CMD variables.  ALT_JDK_HOST_PATH can be set if 
>> needed for cross compilation and it has to be the same version or 
>> newer as the built JDK.
>>
>> Webrev at:
>>    http://cr.openjdk.java.net/~mchung/jigsaw/alt-jdk-host-path/
>>
>> In make/modules/Makefile, thanks for pointing out that  at one point 
>> in time, GNU make would exec sh for every line, even if it was a shell 
>> comment line.  So I moved the comments  above the target.
>>
>> Thanks
>> Mandy
> I've gone through it and it looks good to me.
> 
> -Alan.