On Sun, Jan 04, 2004 at 02:34:09AM -0600, Liguo Song wrote: > I saw the following declaration > extern int scg_cmd __PR((SCSI *scgp)); WHERE, in GCC? Or perhaps in cdrecord, mkisofs and the like... ??? May I suggest to search the internet for such information the next time?! > But, I failed to find the definition of __PR(), which I assume to be a > macro. Can anyone point me to the right place for more information? I'm only guessing where the h*** you find this code snippet, but perhaps you should have a look at prototype.h (www.mit.edu/afs/sipb/project/cdrecord/repository/cdrecord/include/prototyp.h,v) HTH -- Claudio Bley ASCII ribbon campaign (") Debian GNU/Linux user - against HTML email X http://www.cs.uni-magdeburg.de/~bley/ & vCards / \