Tests fail with "Stack space overflow" on big endian systems

[iliastsi]

Tests for commonmark-0.2.3 fail on big endian systems (s390x logs here, ppc64 logs here) with:

Test suite test-commonmark: RUNNING...
test-commonmark: Stack space overflow: current size 33624 bytes.
test-commonmark: Use `+RTS -Ksize -RTS' to increase it.
Test suite test-commonmark: FAIL
Test suite logged to: dist-ghc/test/commonmark-0.2.3-test-commonmark.log
0 of 1 test suites (0 of 1 test cases) passed.

The interesting part is that commonmark sets -with-rtsopts=-K40K for tests, but this is not reflected in the error message. This appears to be a GHC bug, see https://gitlab.haskell.org/ghc/ghc/-/issues/10445.

Setting both -with-rtsopts=-K40K and -with-rtsopts=-kc40K makes the tests pass.

[jgm]

Thanks, that's good to know.