getopt failing on aarch64 #5
Description
Running make check on aarch will result in:
sh -c './wait4ports -q -t 1 -s 1 tcp://127.0.0.1:65535 ; status=$? ; [ $status -eq 255 ] || [ $status -eq 0 ]'
Usage: ./wait4ports [-q] [-s <interval_seconds>] [-t <timeout_seconds>] [<name>=]<protocol>://<host>:<port> [...]
It turns out to be the same issue as SWIFTSIM/SWIFT#17. This char value on aarch64 winds up as 255 instead of -1. Changing from char c to int c fixes the issue.