PRG, proc, func... with Harbour 3.# Files

Most likely everyone has a version of an error system running to replace 
the stock Harbour one, or should have. This is my version.


ErrorSys(). From PD versions (a lot from the xhb). Is still PD.
By Mike Knowles, 12/5/2019. For hb3.4, should be ok with hb3.0.

#include nothing
#define  nothing
#addlib  no

PROCEDURE main()   //  your program 
ERRORSYS()         <<< add this
developing_l = .T. <<< and this if you want the alert
                       otherwise, it does the user style alert.

If *.log file exists, it writes a short summary of the error.

About 540 lines of code.