branch wip-riscv created (now 13ba425)

[guix-commits]

efraim pushed a change to branch wip-riscv
in repository guix.

      at 13ba425  gnu: openlibm: Remove riscv64-linux from supported systems.

This branch includes the following new commits:

     new 0b13921  utils: Define 'target-riscv?' predicate.
     new d2f90ea  gnu: bootstrap: Add support for riscv64-linux.
     new e39749b  gnu: gcc-boot0: Use libstdc++-boot0-gcc7 on riscv64-linux.
     new bc4ec92  gnu: %boot3-inputs: Add missing input.
     new 7c16868  gnu: guile: Fix building on riscv64-linux.
     new 12b794e  gnu: %final-inputs: Add implied gcc:lib input.
     new a871391  gnu: bdb: Fix building on riscv64-linux.
     new 6cb0f2a  gnu: elfutils: Fix building on riscv64-linux.
     new 1d7c347  gnu: pcre: Fix building on riscv64-linux.
     new 67ff3e6  gnu: openssl: Fix build on riscv64-linux.
     new 365a1d4  gnu: libtool: Fix building on riscv64-linux.
     new d1ce907  gnu: openblas: Fix building on riscv64-linux.
     new a52c7e2  gnu: mesa: Add support for riscv64-linux.
     new 7e2bb39  gnu: pcre2: Fix building on riscv64-linux.
     new 9b87f10  gnu: ruby-2.7: Update to 2.7.4.
     new beadbe5  gnu: icu4c: Skip tests on riscv64-linux.
     new 3e1a107  gnu: openblas-ilp64: Add riscv64-linux as a supported 
architecture.
     new 13ba425  gnu: openlibm: Remove riscv64-linux from supported systems.

The 18 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.