Fix x86 architecture detection for SIMD enabling The cmake script uses CMAKE_SYSTEM_PROCESSOR to decide whether SSE2 should be enabled, but it does not detect the 32 bit x86 architecture properly. That variable is initialized from uname -m, which on Linux machines has x86_64 for amd64 architectures which is detected correctly. For 32 bit x86 it will have something like i386 or i686, but the script tries and fails to match that with "x86". . This patch adds a pattern "i[3-6]86" to catch these.
Make common code shared library private Common code for the drivers is collected in a shared library. This is installed in the standard lib location, although it is not used outside these modules. . Install it into the SoapySDR directory instead and pull off the right RPATH shenanigans to make it work. The soname is changed to be based on the libsoapysdr ABI version to match.
