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-rw-r--r--doc/guix.texi4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index b9d127c47c..312f5e7822 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -3479,6 +3479,10 @@ build file @file{build.xml} with tasks to build the specified jar
 archive.  In this case the parameter @code{#:source-dir} can be used to
 specify the source sub-directory, defaulting to ``src''.
 
+The @code{#:main-class} parameter can be used with the minimal ant 
+buildfile to specify the main class of the resulting jar.  This makes the 
+jar file executable.
+
 The parameter @code{#:build-target} can be used to specify the Ant task
 that should be run during the @code{build} phase.  By default the
 ``jar'' task will be run.