Eric Biggers 0a9254fb49 scripts/run_tests.sh: refactor and allow specifying CC and CFLAGS
Don't try to detect and use different compilers, since it's better to
specify this via the environment (e.g. via the Travis CI build matrix).

While doing this, also deduplicate the logic for testing with valgrind
and UBSAN, improve the log messages, and add a test with -O3.
2020-10-18 15:14:15 -07:00
..
2020-10-18 15:14:15 -07:00