[Lazarus] svn r23973 unable to open old projects

[Vincent Snijders]

> 
> make bigideclean bigide OPT="-dOldAutoSize -Xg"
> 
> I have all I need, but no GLScene.
> 
> The only way to have GLScene in the IDE is to build from ide.
> 

<frustration>What happens if you just do what I told you?</frustration>
http://lists.lazarus.freepascal.org/pipermail/lazarus/2010-March/050400.html

More relaxed:
First you update:
svn up
then you build a new LCL and IDE and lazbuild with debug information (I 
like that, because then you can give good back traces to the lazarus 
developers, given better feedback etc), using a define to use tested old 
autosize code:
make clean all OPT="-dOldAutoSize"
Then you build the IDE with no custom options but with all your 
currently installed packages, recompiling the packages as necessary.
lazbuild --build-ide=
To economize on disk space and to rob you from giving valuable back 
traces to the lazarus developers, you strip the executables from debug 
information:
strip --strip-all lazarus.exe
strip --strip-all lazbuild.exe
strip --strip-all startlazarus.exe
pause
exit

Ready.

Alternatively, you can do
lazbuild --build-ide=-dOldAutoSize if glscene has a {$IFDEF OldAutoSize}
or
lazbuild --build-ide=-Xg if you do want to have the debug information, 
but not in the same file as the executable
or
lazbuild --build-ide=-g- if you want to compile the extra packages 
without debug information and the lazarus IDE without debug information 
too, so you don't need to strip it.

Vincent