ExtUtils::CBuilder is used to detect if we have a compiler available.
It has some oddities and doesn't work well in parallel. We run it from a
temporary directory to avoid that. When doing a core build, and in a
temp directory, CBuilder sees PERL_CORE but can't find the perl source
and complains.
If we're running perl core tests, there's no real need to check for a
compiler. We can just assume one is available. Avoid CBuilder's mess and
just return true from our compiler check if running with PERL_CORE.
Leont
commented
3 years ago
ExtUtils::CBuilder is used to detect if we have a compiler available. It has some oddities and doesn't work well in parallel. We run it from a temporary directory to avoid that. When doing a core build, and in a temp directory, CBuilder sees PERL_CORE but can't find the perl source and complains.
If we're running perl core tests, there's no real need to check for a compiler. We can just assume one is available. Avoid CBuilder's mess and just return true from our compiler check if running with PERL_CORE.
Fixes #372