This allows us to play with zero-copy and proto3 support for lite.
Unfortunately, it introduced some warnings, so deprecated warnings are
now ignored for benchmarks and interop-testing.
'nano=true' still works, but any value is now ignored. This is to align
with our lite flag, but also just because It's Cleaner.
Note that this is counter to what javanano does. Javanano requires all
flags have a value and uses true/false for many values.
- Stop defining custom architectures because VisualCpp toolchain doesn't
allow it. Reference to built-in architectures 'x86' and 'x86_64' since
they are supported by all toolchains.
- Remove 'local_arch' from platforms. For unsupported platform, we just
do not specify the target.
- Target no more than one platform at a time. This simplifies the build
script a lot.
- Remove the TARGET_ARCHS environment variable. Add system property
``arch`` to override ``osdetector.arch``.
- Add ``vc.disable`` to override the default choice of VisualCpp on
Windows.
- Add ``vc.`` prefix to the properties that are only used with VC++
Eric Gribkoff
Eric Anderson
Kun Zhang
nmittler
Xiao Hang