I get this error in both PRs that I recently submitted

./../sconfig.h:645:8: error: 'TARGET_OS_IPHONE' is not defined, evaluates to 0 [-Werror,-Wundef-prefix=TARGET_OS_] # elif TARGET_OS_IPHONE ^ • https://github.com/sorawee/racket/runs/3948213406?check_suite_focus=true • https://github.com/sorawee/racket/runs/3948229720?check_suite_focus=true What confuses me is that in the first PR, the error is from build-racketcgc (nocify), but in the second PR, build-racketcgc (nocify) somehow builds just fine. The error is from build-racket3m (nocify) instead.

I don’t know why the error is sometimes different, but I pushed a change to avoid the warning-as-error.