>> Why do you use "hn: Intege"hn: Integer" instead of "hn: TLibHandle"
> Excellent question...
> Because of... fpc...
>
> In fpc 64 bit unix : result of dynlibs.loadlibrary() is... a integer.
Ooops,
How will I explain that ?...
In the pascal header of the library that gives problems this is defined :
var libhandle : {$IFDEF MSWINDOWS}longword{$ELSE}{$IFDEF
CPU32}longword{$ELSE}PtrInt{$ENDIF}{$ENDIF};
And in all the other library-headers that i use without problems it is
defined like this:
var libhandle:TLibHandle=dynlibs.NilHandle;
Maybe (surely) the first definition is wrong.
I have to re-test the problematic library with
var libhandle:TLibHandle=dynlibs.NilHandle;
and see if it is ok for GetProcAdress().
Maybe that was the problem.
Write you later.
PS: Sorry for all the noise but it is not easy.
FreeBSD, in his pkg install a_library gives only the main dynamic library
(.so).
All dependent-libraries are static (*.a).
So the end user has to re-compile all .a libraries to make it dynamic.
For the library in question: -> libmp4ff.a -->
gcc -shared -o libmp4ff.so.0.0.0 -Wl,--whole-archive libmp4ff.a
-Wl,--no-whole-archive
Then you have a dynamic library.
Huh, not so easy because there is the C war...
So you have to make:
gcc -shared -o libmp4ff.so.0.0.0 -Wl,--whole-archive libmp4ff.a
-Wl,--no-whole-archive
CC -shared -o libmp4ff.so.0.0.0 -Wl,--whole-archive libmp4ff.a
-Wl,--no-whole-archive
clang -shared -o libmp4ff.so.0.0.0 -Wl,--whole-archive libmp4ff.a
-Wl,--no-whole-archive
cpp -shared -o libmp4ff.so.0.0.0 -Wl,--whole-archive libmp4ff.a
-Wl,--no-whole-archive
And test each result with nm libmp4ff.so.0.0.0.
Finally, cpp gives something "doable".
And the problem was to know if that compiled library was ok.
Now, thanks to your help, I am sure the library is ok.
I feel bad to not have seen that the (surely) wrong declaration of
library_handle was maybe the cause of all the problems.
Fre;D
-----
Many thanks ;-)
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