[Lazarus] Package issues

[Werner Pamler]

Package hell is back...

After somehow getting around the compilation issues with fpspreadsheet, 
not knowing how,  I somehow ran into another trap with tvplanit. As you 
may know from the forum I am refurbishing the Turbo Power libraray 
VisualPlanIt for use in Lazarus.

At the moment there are three packages:

  * laz_visualplanit.lpk: the main component package,
  * laz_visualplanit_sqlite3.lpk: an extension with a datastore for
    sqlite3 (requires laz_visualplanit), and
  * laz_visualplanit_zeos.lpk: another extension with a datastore for
    zeos database components (requires laz_visualplanit).

They share the same source folder, and compile into the same units 
folder - maybe this is a problem, but the same works for TAChart.

The three packages do compile fine separately. But the final step, 
installation into the IDE, crashes. Compilation of Lazarus stops in 
lazarus.lpi with the message

    "lazarus.pp(1,1) Fatal: Cannot find laz_visualplanit used by
    Lazarus, incompatible
    ppu=D:\Prog_Lazarus\svn\lazarus-ccr\components\tvplanit\packages\lib\i386-win32\laz_visualplanit.ppu,
    multiple packages: laz_visualplanit, laz_visualplanit_sqlite3".

Then I, blindly, erase folders with compiled units, do a clean rebuild, 
sometimes a normal rebuild. And all of a sudden, after some time, the 
compilation ends sucessfully. Since I am actively working with these 
components, however, I run into the same situation when I have to 
rebuild Lazarus again. At the moment to only way to get a working system 
it to remove the two dependent packages, laz_visialplanit_sqlite3 and 
laz_visualplanit_zeos, from the installation list. Therefore, I suspect 
that compiling all three packages into the same folder could be the culprit.

If somebody wants to see this by himself: the sources are in 
Lazarus-ccr, folder components/tvplanit. I hope the issue is 
reproducible on other systems...

Any idea?

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lazarus-ide.org/pipermail/lazarus/attachments/20160701/1dd55042/attachment.html>