Tweak linux_glibc properties for musl builds in external/python/cpython3
For convenience, builds against musl libc currently use the
linux_glibc properties because they are almost always linux-specific
and not glibc-specific. In preparation for removing this hack,
tweak the linux_glibc properties by either moving them to host_linux,
which will apply to linux_glibc, linux_musl and linux_bionic, or
by setting appropriate musl or linux_musl properties. Properties
that must not be repeated while musl uses linux_musl and also still
uses the linux_glibc properties are moved to glibc properties, which
don't apply to musl. Whether these stay as glibc properties or get
moved back to linux_glibc later once the musl hack is removed is TBD.
This relands If44954d3b047be6784e4782457fd0ea695f79484 with a fix
to avoid duplicating sources while linux_glibc is still used for musl.
Bug: 223257095
Test: m checkbuild
Test: m USE_HOST_MUSL=true host-native
Change-Id: I3d87979b2e841761e36c62ef51f440e060fa2780
2 files changed