Support for s390x

I tried to run the SQLite in s390x. And make full was working fine as mentioned below:

0 errors out of 942685 tests on a3elp52.lnxero1.boe Linux 64-bit big-endian

WARNING: Multi-threaded tests skipped: Linked against a non-threadsafe Tcl build

All memory allocations freed - no leaks

Maximum memory usage: 144016 bytes

Current memory usage: 0 bytes Number of malloc() : -1 calls

--- PASS: TestTclTest (1904.22s)

PASS

ok modernc.org/sqlite 1904.230s

Can I know why SQLite is not being supported on s390x? Please let us know so that we will try to reproduce it on our environment.

log.txt