Hi,
> Also this
> 
> >   ,@(if (hurd-triplet? ((or %current-system
> >                             %current-target-system)))
> 
> should be this
> 
> >   ,@(if (hurd-triplet? (or (%current-system)
> >                            (%current-target-system)))
> 

Fixed!

> Btw trying to build it with `./pre-inst-env guix build
> --target=i586-pc-gnu pcre' fails with
> 
> ** Cannot --enable-pcregrep-libz because zlib.h was not found
> 
> Maybe the inputs should become native-inputs?

I moved zlib and readline to 'native-inputs'.
Finally './pre-inst-env guix build pcre --target=i586-pc-gnu' built  
successfully.