This patch does two things: 1. Treat clang on Windows explicitly as MSVC. There
are some places in our build system where we try to detect clang by looking at
the output of $(CC) -v, and that will cause us to believe that we are using
clang, which is not helpful. This patch defines the CLANG_CL variable when it
detects clang being used on Windows. It also masquarades clang-cl as MSVC
2012, which is how the compiler introduces itself through the _MSC_VER
predefined variable.
2. Disable a bunch of things which currently are not supported on clang-cl. As
we proceed with this port, hopefully we'll be able to remove everything in this
list, but this will get us closer to be able to build with clang-cl.
With this patch and clang-cl trunk, we can get past the configure stage of the
build.
--HG--
extra : rebase_source : e5b8d77e4571c936820cec858953d58b6f31e0d5
