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-rw-r--r--doc/guix.texi13
1 files changed, 7 insertions, 6 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 9ae91a8d1e..ff3a9c47b7 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -2506,12 +2506,13 @@ This variable is exported by @code{(guix build-system ruby)}. It
implements the RubyGems build procedure used by Ruby packages, which
involves running @code{gem build} followed by @code{gem install}.
-The @code{source} field of a package that uses this build system is
-expected to reference a gem archive instead of a traditional tarball,
-since this is the format that all Ruby developers use when releasing
-their software. The build system unpacks the gem archive, potentially
-patches the source, runs the test suite, repackages the gem, and
-installs it.
+The @code{source} field of a package that uses this build system
+typically references a gem archive, since this is the format that Ruby
+developers use when releasing their software. The build system unpacks
+the gem archive, potentially patches the source, runs the test suite,
+repackages the gem, and installs it. Additionally, directories and
+tarballs may be referenced to allow building unreleased gems from Git or
+a traditional source release tarball.
Which Ruby package is used can be specified with the @code{#:ruby}
parameter. A list of additional flags to be passed to the @command{gem}