Okay...this pretty much cleans out the include files.

I'm able to get through a 'make' of the backend with no errors except
the occasional 'might not be initialized error', which is nothing major,
just annoying.

Have a few patches from D'Arcy to incorporate, but am waiting until I can
get a clean compile first, which I'm hoping to have before bed, or sometime
tomorrow.

src/include/regex/regexp.h

@@ -57,9 +57,7 @@ typedef struct regexp {
 	char program[1];	/* Unwarranted chumminess with compiler. */
 } regexp;
 
-/* #include <sys/cdefs.h> */
 /* since not all systems have cdefs.h, we'll use our own here - jolly */
-#include "cdefs.h"
 
 __BEGIN_DECLS
 regexp *pg95_regcomp __P((const char *));