OBJECT library types are supported only in CMake 2.8.8 or higher, and
attempting to build BoringSSL on Ubuntu 12.04 results in CMake
displaying unhelpful error messages.

Change-Id: I2bc77a2c95d4f6ee41f8489ff679a2a0ba48c508
Reviewed-on: https://boringssl-review.googlesource.com/1530
Reviewed-by: Adam Langley <agl@google.com>

Building under Ubuntu x86 fails with "Unknown processor:i686".

This adds i686 to CMakeLists.txt, fixing the build.

Change-Id: Ic1c7ce452c019b8a2a875d64a707f640d86c7e31

This change marks public symbols as dynamically exported. This means
that it becomes viable to build a shared library of libcrypto and libssl
with -fvisibility=hidden.

On Windows, one not only needs to mark functions for export in a
component, but also for import when using them from a different
component. Because of this we have to build with
|BORINGSSL_IMPLEMENTATION| defined when building the code. Other
components, when including our headers, won't have that defined and then
the |OPENSSL_EXPORT| tag becomes an import tag instead. See the #defines
in base.h

In the asm code, symbols are now hidden by default and those that need
to be exported are wrapped by a C function.

In order to support Chromium, a couple of libssl functions were moved to
ssl.h from ssl_locl.h: ssl_get_new_session and ssl_update_cache.

Change-Id: Ib4b76e2f1983ee066e7806c24721e8626d08a261
Reviewed-on: https://boringssl-review.googlesource.com/1350
Reviewed-by: Adam Langley <agl@google.com>

CMake calls "uname" in order to detect the CPU architecture,
so $(CMAKE_SYSTEM_PROCESSOR) varies from platform to platform.

This changes adds support for "i386" and "amd64" values, which
are used by BSDs for the x86 family of CPUs.

Change-Id: I532ce787a9ac06220c92a6d8c78ad5a55d8c40bf
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
Reviewed-on: https://boringssl-review.googlesource.com/1360
Reviewed-by: Adam Langley <agl@google.com>

Initial fork from f2d678e6e8 (1.0.2 beta).

(This change contains substantial changes from the original and
effectively starts a new history.)