On Nov 20, 2018, at 6:59 PM, Evan Hanson wrote:
>
> Hi Antoine,
>
> The issue here is the "./" prefix on $(SCHEME_OBJECTS). Your project
> works fine with just the following change:
>
>3c3
>< SOURCE_PREFIX = ./
>---
> SOURCE_PREFIX =
>
> CHICKEN uses a naive string comparison to deduplicate object files, so "./a.o"
> and "a.o" are considered to be distinct. The first of these files you provide
> explicitly in the Make rule for "test" (which is fine), while the second of
> them comes from CHICKEN's dependency resolution (as a prerequisite of the
> functor instantiation, b-foo). Because the two differ as strings, they are not
> deduplicated, both are passed to clang, and you get a linking error.
>
> We may want to improve on this in the future by normalising filenames or
> comparing them as paths, but for right now that is the cause and what you can
> do to solve it.
>
> All the best,
>
> Evan
>
> P.S. Thank you for the very high-quality reproduction.
Thanks for the fast and exhaustive answer. Your fix works for me. I can
easily rearrange my workflow and stop relying on this SOURCE_PREFIX
variable.
Best,
Antoine
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