Manolis Ragkousis <manolis...@gmail.com> skribis:
> I started writing the macro that chooses between 'glibc/linux' and
> 'glibc/hurd' so I added #:export (glibc) at defined modules, renamed glibc
> to glibc/linux and then I added
>
> (define (glibc-for-target target)
> "Return the glibc for TARGET, glibc/linux for a linux host or
> glibc/hurd for a hurd host"
> (match target
> ("i686-pc-gnu" glibc/hurd)
> (_ glibc/linux)))
>
> (define-syntax glibc
> (identifier-syntax (glibc-for-target (%current-target-system))))
Looks good! It should be:
(glibc-for-target (or (%current-target-system) (%current-system)))
so that, when we build natively on GNU/Hurd, we also end up using
glibc/hurd.
> Is my approach right? Because I am getting the error
>
> gnu/packages/base.scm:772:3: In procedure #<procedure 48307c0 ()>:
> gnu/packages/base.scm:772:3: In procedure struct-ref: Wrong type argument
> in position 1 (expecting struct): #<syntax-transformer glibc>
Run ‘make clean-go && make’ to recompile the Scheme file, and everything
will be alright, hopefully. :-)
(This is because macros are expanded at compile time, so any Scheme file
that refers to ‘glibc’ must be recompiled so that the macro gets
expanded.)
Ludo’.
