UBSan findings in GetText 0.20.1

[Jeffrey Walton]

Hi Everyone,

I'm building GetText 0.20.1 with UBsan and then running self-tests.
The UBsan flags are -fsanitize=undefined -fno-sanitize-recover. I'm
seeing four failures that don't show up under normal testing:

make[5]: Entering directory
'/home/jwalton/Build-Scripts/gettext-0.20.1/gettext-tools/tests'
...
FAIL: msgattrib-properties-1
...
FAIL: msgexec-3
...
FAIL: msgfilter-3
...
FAIL: msguniq-4
...

It looks like there are some problems with NULL pointers (if I am
parsing the UBsan messages properly). Attached is
gettext-tools/tests/test-suite.log.

Jeff

test-suite.log.zip
Description: Binary data