Commit 57832e625c (PR #119860) switched to using SYSCFLAGS,
but lua 5.1 calls it MYCFLAGS. We noticed due to broken luarocks build:
https://hydra.nixos.org/build/142663274
Commit 57832e625c (PR #119860) switched to using SYSCFLAGS,
but lua 5.1 calls it MYCFLAGS. We noticed due to broken luarocks build:
https://hydra.nixos.org/build/142663274