On Wed, 7 May 2025 22:52:09 GMT, Magnus Ihse Bursie <i...@openjdk.org> wrote:

>> make/common/JavaCompilation.gmk line 342:
>> 
>>> 340:     $1_SRCS_WITHOUT_ROOTS := $$($1_SRCS)
>>> 341:     $$(foreach i, $$($1_SRC), $$(eval $1_SRCS_WITHOUT_ROOTS := 
>>> $$(patsubst \
>>> 342:         $$i/%,%, $$($1_SRCS_WITHOUT_ROOTS))))
>> 
>> Using eval like this can sometimes have weird consequences. I would 
>> recommend rewriting this without eval. I think something like this should 
>> work. It may change the order of elements, but that shouldn't matter here.
>> 
>> 
>>     $1_SRCS_WITHOUT_ROOTS := $$(foreach i, $$($1_SRC), \
>>         $$(patsubst $$i/%,%, $$(filter $$i/%, $$($1_SRCS))))
>
> I agree that this looks a bit wonky. I just copied it from 
> SetupNativeCompilation, since it has worked well there.

It certainly works most of the time, but can have weird effects when there are 
`$` characters in strings and this deep into the implementation of a big macro 
I would prefer to avoid it if possible. I hope you verified that my version 
worked. :)

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PR Review Comment: https://git.openjdk.org/jdk/pull/24449#discussion_r2080098636

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