Changed strategy for setting preprocessor definitions.

Instead of generating separate object files for each permutation of
defines for a source file, GenerateNamedObjects now writes an entirely
new source file and inserts the defines as #define c statements.

This solves a problem I ran into with ar.exe where it was refusing to
link objects that had the same filename despite having different paths.

kernel/CMakeLists.txt

@@ -251,4 +251,4 @@ endforeach ()
 # Makefile.LA
 #DBLASOBJS	+= dneg_tcopy$(TSUFFIX).$(SUFFIX) dlaswp_ncopy$(TSUFFIX).$(SUFFIX)
 
-set(DBLAS_OBJS ${DBLAS_OBJS} PARENT_SCOPE) # list append removes the scope from DBLAS_OBJS
+add_library(kernel OBJECT ${OPENBLAS_SRC})