gh-109575: Don't export -fsanitize compiler options by vstinner · Pull Request #109576 · python/cpython

When Python is configured to use ASAN, MSAN or UBSAN sanitizer, with
"./configure --with-address-sanitizer" for example, compiler and
linker flags for sanitizers are no longer exported to third party C
extensions. Add flags to CFLAGS_NODIST and LDFLAGS_NODIST, instead of
BASECFLAGS and LDFLAGS.

Makefile.pre.in: PY_LDFLAGS_NOLTO now uses PY_LDFLAGS_NODIST, instead
of LDFLAGS_NODIST, and add CONFIGURE_LDFLAGS_NOLTO after
PY_LDFLAGS_NODIST.