bug#26760: [PATCH] gnu: guile-bytestructures: Install sld files.

[Mathieu Othacehe]

> LGTM!  (.sld is an R7 thing?  I never got used to the R6 file extensions
> to begin with…)

Yes .sld files contain R7RS library definitions. There are two kinds of
.sld in guile-bytestructures:

* r7/*.sld : library definitions not compilable with guile
* r7/*.exports.sld : (export ...) definitions used in
bytestructures/guile/ folder and compilable with guile.

I'm not really familiar with this but it makes sense to me to include
.exports.sld files in guile-bytestructure build.

Mathieu