SOURCE CODE ORGANIZATION

The source code is organized as follows:

			dmake 		[source for all common functions]
			  |
			  |
	    ----------------------------
	    |	 |     |    |          |
	   unix tos   qnx  os2       msdos  [source for OS specific functions]
	    |	            |          |
  --------------------      |       -------------------
  |         |        |      |       |       |         |
386ix     bsd43  sysvr[134] |    tccdos   bccdos   mscdos  [source for OSRELEASE
	    |	      	    |		    |	            specific functions] 
	    |           ---------       ------------------
	    |           |       |       |        |       |
	    |          ibm    mscdos  bcc30    bcc32   bcc40
	    |
	    |
	    |
	--------
	|      |
       uw      vf   [source for OSENVIRONMENT specific functions]


Each of the directories (eg. bsd43, mscdos, tccdos, and sysvr3) contain source
that is specific to that release of the OS (and possibly C-library)