Log Message:
-----------
* add struct elements to support async callbacks
Modified Files:
--------------
libpgtcl/generic:
pgtclCmds.h (r1.25 -> r1.26)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgtcl/libpgtcl/generic/pgtclCmds.h?r1=1.25&r2=1.26)