Fixed some typos.

Updated c_check to set ARCH and BINARY64/32.

Added version variables.

Moved a couple C compiler ifs from Makefile.system into cc.cmake.

Naming isn't right, though, not seeing cblas_xxxx exports in the
resulting library.

Since the objects are the same, could generate SINGLE/COMPLEX/etc here
without having to rewrite all the object enumeration code again.

This function takes a set of sources and a set of preprocessor
definitions. It will iterate over the sources and build an object
file for each combination of preprocessor definitions for each
source file.

Added a rather convoluted CMake function to find all combinations
of a given list. This will be useful for the object files that are
compiled multiple times with different combinations of preprocessor
definitions.

Still isn't parsed into CMake variables, and getarch_2 needs to
get the same treatment.

It only does the double precision compile currently.

I realized I didn't finish converting Makefile.system yet, so I made
a note of that.

The main part of this target is looping through the BLAS subfolders
and calling make on them. Need to add CMakeLists.txt for each of these
subfolders.

Doesn't actually run it yet.

Optimizations for steamroller

added Steamroller as a  cpu target

Correct ilaver C declaration

workaround for sandybridge zgemm kernel