8160630: libjimage.so and others should link statically to libgcc
Reviewed-by: ihse, tbell

8152666: The new Hotspot Build System
Reviewed-by: ihse, dcubed, erikj
Contributed-by: magnus.ihse.bursie@oracle.com, erik.joelsson@oracle.com, ingemar.aberg@oracle.com

8138761: Improved handling of libffi, and cleanup of libraries.m4
Reviewed-by: erikj