Re: libapl build bug--a cautionary tale

[Dr . Jürgen Sauermann]

    Hi Chris,
      
      thanks. I have added a file "README-13-build-pitfalls"
    explaining this.
    
    Best Regards,
    Jürgen

On 3/10/22 4:18 PM, Chris Moller wrote:

>       
>       I just tried to build
>             1537 with libapl:
>           
> > ./configure
> >               --with-libapl
> >       
>       When you do that, the
>             final link blows up with a couple hundred lines of
>             variations of:
>           
> > /usr/bin/ld: /usr/local/lib/libfftw3.a(apiplan.o):
> >         relocation R_X86_64_32S against `.rodata' can not be used when
> >         making a shared object; recompile with -fPIC
> >         
>       the variations being all the *.o files in libfftw3.a:
>       import-system-wisdom.o, import-wisdom-from-file.o, etc.
>           
>       It turns that if you build fftw from fftw-3.3.10.tar.gz with the
>       default ./configure, it only builds the .a library and not the .so
>       shared library.  This works in the apl build if you're just
>       building executable apl, though you're probably linking against
>       libfftw3.a, but dies if you're building libapl.
>       
>       You can make fftw build the .so* libs by configuring with:
> > ./configure --enable-shared
> >       
>       after which the libapl build works.
> >
> >
>