Re: About static libraries and Debian policy

[Ludovic Brenta <ludovic@ludovic-brenta.org>]

Dmitry A. Kazakov writes:
> On Fri, 14 May 2010 20:43:27 +0200, Ludovic Brenta wrote:
>
>> § 5.3.3 Ada object files [...]
>> Rule: The -dev package SHALL provide a static library in
>> /usr/lib/libLIBRARY.a.
>
> OK.
>
>>>>> BTW, Why there should be no traceback when relocatable libraries are
>>>>> used?
>> 
>> Traceback is always available, either in symbolic or numeric form.  To
>> get the symbolic form, you need the -dbg package installed.
>
> I meant g-trasym.adb. In Fedora's gcc 4.4 it is in the static library, but
> absent in the shared. I don't understand why.

Maybe the Fedora maintainers can explain?

>>> Maybe, but other shared libraries can well be compiled with -g as well
>>> as the application. But linking them with shared RTL fails if any of
>>> them uses Traceback.Symbolic.
>> 
>> That's because GNAT GPL includes a non-standard 'libaddr2line.a'
>> produced from binutils (and therefore pure GPL) and calls that to
>> produce the symbolic tracebacks.  GCC (from the FSF) lacks this library.
>> I patched GCC to use an alternate mechanism instead, i.e. fork()/exec()
>> and call /usr/bin/addr2line.  This restores the functionality in the FSF
>> version of GNAT.
>
> Does it mean that under Debian g-trasym.adb is in both libraries?

Yes.  And they Just Work(tm) as they should :)

-- 
Ludovic Brenta.