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-rw-r--r--doc/info/librarian.texinfo6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/info/librarian.texinfo b/doc/info/librarian.texinfo
index 20260c2..7d3b416 100644
--- a/doc/info/librarian.texinfo
+++ b/doc/info/librarian.texinfo
@@ -144,6 +144,12 @@ in the other variables unless the library
@code{LIBRARY} requires them directly.
@end table
+Upper cased arguments are interpreted as
+@code{VARIABLE} options, other arguments are
+interpreted as @code{LIBRARY} options, and
+should be, but are not required to be, lower
+cased.
+
If @code{VARIABLE} is omitted, the process will
exit with the value @code{0} if all listed libraries,
@code{LIBRARY}, are available, and otherwise exit