Best practice for extracting information from a makefile

[Richard Shaw]

On Tue, Aug 16, 2011 at 10:31 AM, Michael Schwendt <mschwendt at gmail.com> wrote:
> On Tue, 16 Aug 2011 10:16:59 -0500, RS (Richard) wrote:
>
>> >> Or perhaps you only need to run "ldconfig -n ..." to add missing symlinks?
>>
>> Gave it a shot. It does create the soname symlink but does not create
>> a plain .so symlink for the -devel sub-package, so I still have to
>> create that manually.
>
> cd %{buildroot}%{libdir}
> ldconfig -n $(pwd)
> ln -s %{name}.so.? %{name}.so
> cd -

Wouldn't that create a symlink of a symlink?

I ended up doing it this way:

# Extract library name from Makefile
LIBNAME=$(make -f Makefile -f - <<<'lib_so:; @echo $(lib_so)' lib_so)

# Create symbolic link for -devel subpackage.
ldconfig -n %{buildroot}%{_libdir}
pushd %{buildroot}%{_libdir}
ln -s $LIBNAME %{name}.so
popd

Thanks,
Richard