K 10 svn:author V 4 mike K 8 svn:date V 27 2002-04-01T07:58:26.000000Z K 7 svn:log V 244 Implement a fine-grain control system which allows header developers to control the exposure of macros and prototypes depending upon the POSIX, X/Open, or ISO C version an application has requested. Submitted by: wollman Reviewed by: bde, imp END