-/* Include headers for those files central to the implementation. The
- rest should be explicitly #included in the C files themselves. */
-#include "error.h" /* Everyone signals errors. */
-#include "print.h" /* Everyone needs to print. */
-#include "pairs.h" /* Everyone conses. */
-#include "list.h" /* Everyone makes lists. */
-#include "gc.h" /* Everyone allocates. */
-#include "gsubr.h" /* Everyone defines global functions. */
-#include "procs.h" /* Same. */
-#include "numbers.h" /* Everyone deals with fixnums. */
-#include "symbols.h" /* For length, chars, values, miscellany. */
-#include "boolean.h" /* Everyone wonders about the truth. */
-#include "strings.h" /* Everyone loves string. */
-#include "vectors.h" /* Vectors are used for structures a lot. */
-#include "root.h" /* Everyone uses these objects. */
-#include "ports.h" /* Everyone does I/O. */
-#include "async.h" /* Everyone allows/disallows ints. */
-#ifdef USE_THREADS
-#include "threads.h" /* The cooperative thread package does
- switching at async ticks. */