[Pharo-project] Compiling and using the FT2Plugin

Alain Plantec alain.plantec at yahoo.com
Thu Jun 2 06:51:43 EDT 2011

Hi Bill,

Thanks for your help.
For now, I'm just trying to compile my own vm to learn.
to me, the stderr message
   libFT2Plugin.so: cannot open shared object file: No such file or 
means that the external libFT2Plugin.so fails while trying to load a 
I guess, it is the libfreetype.so which is in /usr/lib, a standard location.

To find out what is the problem, I've tried to compile the ft2plugin as 
an internal one.
I've succeed in compiling it after a method addition in the plugin 
(FT2Plugin>>#bytesPerWord) and
with the adding of -lfreetype for the final linking of cogVM.
I've manually added it, I mean in the linux console.
so, first step, I have a vm, compiled by myself and with a functional 
FT2Plugin, yes!!! cool.

Now I'm trying to figure out how to automatically add "-lfreetype" for 
the linking invocation.
lost in the plugin/cmake infrastructure jungle .... :)

as a second step, I will come back to the compiling of FT2Plugin as an 
external plugin.


02/06/2011 02:59, Schwab,Wilhelm K a écrit :
> Alain,
> Sig's answer leaves me doubting my suspicion, but I will toss it out anyway, and since you are building a vm, you can pretty easily run through the exercise.
> First, the question: what (full path) library is the vm trying to load?  It really is a plugin, so some of my more common concerns (extra slashes in the path, so.Name instead of libName.so, etc., go away - or do they??).
> Sadly, I don't see the code I want to give you on this machine.  Maybe my laptop will have some friendly symlinks to the tweaked files.  In short, I think that any time the (particularly linux) vm translates a number to to a name or a name to a path, and the subsequent load fails, it should say something somewhere about what it tried to open/load.  I have used syslog() to good effect.  It's nice because the logs rotate, giving some time for the user to look for it and yet not clog the drive with old news.
> Ok; I'll shut up and see if I can find some code for you :)
> Bill
> ________________________________________
> From: pharo-project-bounces at lists.gforge.inria.fr [pharo-project-bounces at lists.gforge.inria.fr] On Behalf Of Alain Plantec [alain.plantec at yahoo.com]
> Sent: Wednesday, June 01, 2011 2:00 PM
> To: pharo-project at lists.gforge.inria.fr
> Subject: Re: [Pharo-project] Compiling and using the FT2Plugin
> Le 01/06/2011 19:46, Igor Stasenko a écrit :
>> On 1 June 2011 19:20, Alain Plantec<alain.plantec at yahoo.com>   wrote:
>>> Hi all,
>>> I try to build my own vm (ubuntu 10.04, virtualbox)
>>> Thanks to the **excellent** Mariano blog, I can compile, it runs ok except
>>> the FT2Plugin
>>> I always have the following error message while trying to load fonts:
>>> ioLoadModule(libFT2Plugin.so):
>>>    libFT2Plugin.so: cannot open shared object file: No such file or directory
>>> I guess that it is because the plugin is unable to load libfreetype.so.
>>> does someone know what I am missing ?
>> i know. ;)
>> i wanna add a correct settings for building this plugin on all
>> platforms. so we can ship a vm with this plugin by default.
>> But i haven't time to do it yet. So, if you find a solution how to do
>> it for unix, i will capture your knowledge in corresponding config(s)
>> :)
> ahhhhh! thanks Igor
> I'm not so stupid, its a problem :)
> ok, I will try
> Cheers
> Alain
>>> thanks
>>> Alain

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