The effect of this change was to import the (json parser) from the host
side into the build side. The solution here would be to do the equivalent
of ‘with-extensions’ for gexps. Since we don't use gexps for build
systems just yet, revert this for now.
This reverts commit 8eb0ba532e.
* guix/build/node-build-system.scm: New file.
* guix/build-system/node.scm: New file.
* guix/build/json.scm: New file.
* doc/guix.texi: Document it.
* Makefile.am: Added new files.
Co-Authored-By: Julien Lepiller <julien@lepiller.eu>