branch wip-build-systems-gexp created (now 082df93)

[guix-commits]

civodul pushed a change to branch wip-build-systems-gexp
in repository guix.

      at 082df93  gnu: docbook-xsl: Move 'use-modules' form to the top level.

This branch includes the following new commits:

     new 7882cc6  gexp: Add 'with-build-variables'.
     new f8167d8  gexp: Optimize 'with-build-variables'.
     new c72b3e7  build-system: Rewrite using gexps.
     new c19d90c  packages: Turn 'bag->derivation' into a monadic procedure.
     new 81a68ae  packages: Simplify patch instantiation.
     new 7029367  packages: Core procedures are written in monadic style.
     new e0b5069  packages: Default origin 'patch-flags' is a gexp.
     new 57be9e0  gexp: Add 'sexp->gexp'.
     new f19410f  build-system: Use 'sexp->gexp' for plain sexps.
     new 25a9b27  build-system: Use 'input-tuples->gexp' and 'outputs->gexp'.
     new 79dfd8f  packages: '%standard-patch-inputs' is not influenced by 
'%current-target-system'.
     new acad959  packages: 'expand-input' accepts any file-like object.
     new 31d5e7d  packages: Call 'bag-grafts' only on the tip of the package 
graph.
     new 0c3dcd2  grafts: Add 'without-grafting'.
     new 8dea593  gexp: Allowed/disallowed references and graphs never refer to 
grafted inputs.
     new f9d0774  gexp: Do not add derivations to the object cache.
     new 082df93  gnu: docbook-xsl: Move 'use-modules' form to the top level.

The 17 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.