In <http://bugs.gnu.org/19219>, we came to the conclusion that we need a new syntax to denote a specific package version on the command line.
The current syntax is described in the manual (info "(guix) Invoking guix package"). Basically, ‘guile-1.8’ refers to version 1.8.x of Guile; however, this syntax has proved to be ambiguous for packages whose name contains digits. For the new syntax, the proposals so far are: 1. slash, <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19219#25> guile:1.8/doc xterm-256-color:320 emacs:24.5/out 2. underscore, <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19219#28> emacs_24.5:out 3. at, <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19219#31> guile@1.8 guile@1.8:doc What do people think? Ludo’.
