[Nix-dev] I think I've found an ar archive bug

[Lluís Batlle]

The generic builder script has this excerpt of code:
    # By default, disable static builds.
    if test -z "$dontDisableStatic"; then
        if grep -q enable-static $configureScript; then
            configureFlags="--disable-static $configureFlags"
        fi
    fi

So, if you want the static library, set dontDisableStatic=true in your
derivation.

Why does audacity want the static version of the library? It should
not care much on that.

Regards,
Lluís.

2009/10/17 Tony White <tonywhite100 at googlemail.com>:
> Hi guys,
> I've been trying to get audacity to build, with some interesting
> results. However, I think I've found a problem and I need someone else
> to confirm it.
> The problem is with the libmad package (An optional dependency of
> audacity) and possibly any other src archive that uses the ar archive
> format to gather .o files into a single lib.
> http://en.wikipedia.org/wiki/Ar_(Unix)
> With libmad there should be a lib/libmad.a file created as a result of
> the compilation but it is not. I used fedora 12 here to do a test and
> the output result should be :
>
> include/mad.h
> lib/libmad.a
> lib/libmad.la
> lib/libmad.so (A symlink to lib/libmad.so.0.2.1)
> lib/libmad.so.0 (A symlink to lib/libmad.so.0.2.1)
> lib/libmad.so.0.2.1
>
> Using NixOs with binutils added as a buildInput the ouput is :
>
> include/mad.h
> lib/libmad.la
> lib/libmad.so (A symlink to lib/libmad.so.0.2.1)
> lib/libmad.so.0 (A symlink to lib/libmad.so.0.2.1)
> lib/libmad.so.0.2.1
>
> And lib/libmad.a does not get created.
>
> The worst thing about all this is that where the .o files are created
> for libmad isn't even clear. They get created in a folder called .libs
> in the build dir, so you can't even see the folder in normal directory
> output in a console or without showing hidden files in kde's dolphin
> file manager.
>
> libmad is quite a quick compile and nice as a test case, so could
> anyone please investigate why the ar archive doesn't get created
> please? I've managed to workaround it but I think I'm seeing the same
> thing with portaudio and if this is system wide, there could be
> potential for problems. Who knows how many developers want to bundle
> .o files as a .a ar archives?
>
> So my questions are : Is this a bug or just bad build scripts? If I
> manually create the libmad.a and copy it to lib/, do I need to run
> patchelf on it seperately?
>
> Thanks,
> Tony
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