postgresql/src/tools/pginclude
..
pgcompinclude
pgdefine
pgfixinclude
pgrminclude
README

These utilities help clean up #include file usage:

pgfixinclude	change #include's to <> or ""

pgrminclude [-v]
		remove extra #include's

pgcompinclude [-v]
		report which #include files can not compile on their own

pgdefine	create macro calls for all defines in the file (used by
		the above routines)