Using shared libraries

Using shared libraries

[Tomek Walkuski]

I suppose it is easy (and dumb, again) question.

I have built library (let's call it "foo") using project files. I have
"libfoo.so" and some *.ali files in /lib dir.

I have created another project (different directory and so on), called
"bar", and I want to use "foo" library.

What is needed? Put libfoo.so somewhere and set Linker_Options
properly? Or maybe sources are needed to compile "bar" project?

I'm green.

Re: Using shared libraries

[Hibou57 (Yannick Duchêne)]

Ada compilers needs specifications to use a packages. So I suppose at
least the specification files should shipped in one of the compiler
include search paths.

If you are using GNAT, you may try to simply import the library
project from the application project which needs the library
(providing you've built the library with a library project). To do so,
either addd “ with "librarypath/mylibrary.gpr " ” at the start of your
application project file, or else, from GPS, add a dependency to the
library project in the application project dependencies.

Greatings

Re: Using shared libraries

[Tomek Wałkuski]

Ok, simply "with'ing" library project file works.

Now... how to force that "bar" project which uses "foo" library had to
use libfoo.so ? In other words, that libfoo.so had to be in library
path in order "bar" to work.

Re: Using shared libraries

[Dmitry A. Kazakov]

On Fri, 10 Jul 2009 14:03:09 -0700 (PDT), Tomek Walkuski wrote:

> I suppose it is easy (and dumb, again) question.
> 
> I have built library (let's call it "foo") using project files. I have
> "libfoo.so" and some *.ali files in /lib dir.
>
> I have created another project (different directory and so on), called
> "bar", and I want to use "foo" library.
> 
> What is needed? Put libfoo.so somewhere and set Linker_Options
> properly? Or maybe sources are needed to compile "bar" project?

Here is a mall program that helps installation of custom libraries into
GPS:

   http://www.dmitry-kazakov.de/ada/gps_installer.htm

It also describes a bit where to place which files.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de