Partly fixes <http://bugs.gnu.org/20402>. Reported by Joshua Randall <firstname.lastname@example.org>. * guix/build/download.scm (open-connection-for-uri): Rewrite to be a small wrapper around 'open-socket-for-uri'. This procedure was initially introduced inversion-0.8.3
d14ecdato work around the lack of NSS modules during bootstrap but that has become unnecessary since
0621349, which introduced a bootstrap Guile that uses static NSS modules (from commit d3b5972.) On Guile >= 2.0.10, this allows the 'http_proxy' environment variable to be used.