This is done via new LIBUNWIND_TEST_COMPILER_FLAGS and LIBUNWIND_TEST_LINKER_FLAGS variables.
|142 ↗||(On Diff #135285)|
PATH should be STRING.
|25 ↗||(On Diff #135285)|
This should be test_compiler_cflags.
I would say yes for the sake of consistency with the option it's controls and libcxx. Additionally, we also require config.test_linker_flags to be set as well, so we need LIBUNWIND_LINKER_FLAGS.
LGTM with those two additional changes. I've tested it with your N32 patch and it works.