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-rw-r--r--doc/user/Makefile.am3
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/user/Makefile.am b/doc/user/Makefile.am
index 797bc45..9ff8880 100644
--- a/doc/user/Makefile.am
+++ b/doc/user/Makefile.am
@@ -105,4 +105,5 @@ uninstall-local:
 # not listed in `CLEANFILES'.
 clean-local:
 	-rm -f user-*.html *.eps *.png
-	-rm -rf "lout"
+	-if test "$(top_builddir)" != "$(top_srcdir)";	\
+	 then rm -rf "lout" ; else : ; fi