How to avoid PUBLIC warnings

This brief tip is inspired by a thread at the harbour-Users forum

Giovanni Di Maria :

How can I avoid the warnings of PUBLIC variables, compiling with -w3 flag?

Solutions

1. Maurizo la Cecilia : just add -a to your compiler flags 2. Qatan : For me the right thing to do is to use your public variables this way: M->PulicVariable := “value” That way you are going to “avoid” warnings 3. Viktor : Try hbmk2 --harbourhelp

How to Build a Minigui (HMG Extended) Application with hbmk2 (Hb2.1, rc2)

Let us see what I have achieved thus far using hbmk2 from  the Harbour 2.1, rc (rev 16348) nightly builds as well as the MinGW Compiler

1. Harbour 2.1 + gtWVT - succesful
2..Harbour 2.1 + gtWVG- succesful
3. Harbour 2.0 + HMG.3.0.35 - succesful
4. Harbour 2.1 + HMG.3.0.35 -failure as HB2.1 not supported by HMG

With the help of Grigory Filatov of Minigui(HMG Extended) and Viktor (hbmk2 Architect), I have finally managed to do the same with the latest version of Minigui +Harbour 2.1, rc2
Please not that in this case, the MinGW linker could not be used as Borland C++ Compiler was used to build Minigui.

The successful re-building of a legacy 16-bit FiveWin application was done using the free Borland C++ Compiler +Harbour 2.1, rc2 +Minigui using the following .hbp and .hbc files

HRM4HMGX.HBP-oHRM4HMGX.exe
-w3
-es2
-gtgui
-rebuild

-lminigui -lvfw32
-lhbct -lhbmzip -lminizip -lhbwin -lhbmisc -lxhb

HRM4HMGX.HBC

hrm4win.prg
locks.prg

HRM4HMGX.HBC
incpaths=C:\MiniGUI\include
libpaths=C:\MiniGUI\lib
libs=
gt=
mt=no
instpaths=

How to compile a HMG application with hbmk2 ?

All along, I have always use HMG-IDE by Roberto Lopez to compile  Harbour Minigui  Win 32 apps. The process is actually simple. For example, all I needed to do was to create a project with the IDE and add  a list of the PRGs that needed to be compiled.

If the name of the project is FRS4HMG, frs4hmg.hbp will be created as follows :-

frs4hmg.hbp
=========
frs4w764.prg
lock.prg

By running the frs4hmg project, FRS4HMG.EXE is created

After discovering the versatility of hbmk2 and especially after successfully using hbmk2 to compile a gtWVG app, I was motivated to try the same with building a HMG app with hbmk2.

I took a look at the frs4hmg.hbp and noticed that there was no HMG libs at all. I then looked at the build.bat in the HMG root folder and was overwhelmed :-) As usual, I posted my issue at the HMG Forum and an Italian Member, Luigi was kind enough to walk me through and highlight that it was just impossible to do so with Harbour 2.1

Quote by Luigi

In addition, I have tried to compile HMG3 with the new version of the Harbour compiler but I got many warning with the option /w0 (with /w3, of course, does not generate the hmg library). The generation of an executable is, in any case, impossible for many mistakes: for example with hbmzip (used by Hmg).

frs4hmg.hbp (after looking at Luigi's feedback)
=========

-oFRS4HMG.exe
-prgflag= -w3 -es2 -gtgui
-cflag=-O3

-lhmg -lhbmzip -lhbwin -lhbct -lhbmisc -lxhb -lvfw32 -lmsvfw32

frs4hmg.hbc

frs4w764.prg
locks.prg

frs4hmg.hbc
=========

incpaths=c:\hmg\include
libpaths=c:\hmg\lib


I then hbmk2 frs4hmg.hbp but there were lots of undefined functions in lhmg etc.

Taking the cue, I changed the PATH under environmental variables in Win 7 to C:\hb20;Hb20\bin and

hbmk2 frs4hmg.hbp and bingo FRS4HMG.EXE was duly created !

Migrating Xharbour Codes to Harbour 2.1

Recently in recompiling a XHarbour app to Harbour 2.1, I ran into a couple of Undefined Functions such as

1) C:/Users/CCH/AppData/Local/

Temp/hbmk_lv5w33.dir/HMS_MAIN.o:HMS_MAIN.c:(.data+0x1
5b8): undefined reference to `HB_FUN_SETMOUSE'

2) C:/Users/CCH/AppData/Local/Temp/hbmk_lv5w33.dir/HMS_MAIN.o:HMS_MAIN.c:(.data+0x1
6b8): undefined reference to `HB_FUN_HB_FREADLINE'

I tried unsuccessfully to find replacement functions and Viktor came to my rescue by suggesting that Ilink xhb and hbxpp libs to your app:  hbmk2 ... xhb.hbc hbxpp.hbc

Practically, it means that I add xhb.hbc and hbxpp.hbc to my hbp file :-)

Building a Harbour+gtWvg Project using hbmk2

Previously, I had written how one can build a Harbour+gtWvg project using XMate, the first part at
http://cch4clipper.blogspot.com/2009/04/using-harbourwvg-part-i.html

Having discovered the simplicity of using hbmk2 to compile a 32-bit version of DBU which runs in a true 32-bit Window, I tried to rebuild my previous gtWvg project. I succeeded to generate an EXE but on launching, it just starts and exit straightaway.

Fortunately. Pritpal came to my assistance and suggested adding  the following to FAS4WVG.HBP

-inc
-mt
 -w3
-es2
-gtwvg
-gui

and Hip Hip Hooray, I can now build a Harbour+gtWvg project without an IDE :-)

What is hbmk2 ?

hbmk2.exe is the Harbour 2.0 excellent make utility that is located in the BIN folder under the C:\hb20 root directory. This is assuming that you accept the default location when installing the hb20 distro available at http://sourceforge.net/projects/harbour-project/files/binaries-windows/2.0.0/

After installing do not forget to set path to c:\hb20; c:\hb20\bin.

To use it is fairly simple, go to your project folder and type

c:\hb20\projects\yourproject >hbmk2 yourproject.hbp and bingo your Harbour 32-bit EXE is created

What are the options that hbmk2 provide ?

Just type at any command prompt

C:\hb20\projects\myprojects> hbmk2  
and this is what you get to see :-

Harbour Make (hbmk2) 2.0.0 (Rev. 13372)
Copyright (c) 1999-2010, Viktor Szakats
http://www.harbour-project.org/

Syntax:

  hbmk2 [options] [] .clp|.d]> Options:   -o        output file name   -l        link with library. should be without                      path, extension and 'lib' prefix (unless part of libname).   -L        additional path to search for libraries   -i

|-incpath=
additional path to search for headers
  -static|-shared    link with static/shared libs
  -mt|-st            link with multi/single-thread VM
  -gt          link with GT GT driver, can be repeated to link with
                     more GTs. First one will be the default at runtime
  -hblib             create static library
  -hbdyn             create dynamic library
  -help|--help       long help
 

For more details, see http://groups.google.com/group/harbour-users/web/how-using-hbmk2