Reviewed-by: NRich Salz <rsalz@openssl.org>

It seems that on some platforms, the perlasm scripts call the C
compiler for certain checks.  These scripts need the environment
variable CC to have the C compiler command.
Reviewed-by: NRich Salz <rsalz@openssl.org>

This also adds all the raw sections needed for some files.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Now that we have the foundation for the "unified" build scheme in
place, we add build.info files.  They have been generated from the
Makefiles in the same directories.  Things that are platform specific
will appear in later commits.
Reviewed-by: NAndy Polyakov <appro@openssl.org>