1 files changed, 7 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 36f42d31c..d2efbb1d8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2934,4 +2934,10 @@ fi
 echo "See config.modules for installed modules and functions.
 "
 
-
+case x$LIBS in
+  (*-lgdbm*)
+  echo "WARNING: zsh has been linked against libgdbm.
+This means the binary is covered by the GNU General Public License.
+This does not affect the source code."
+  ;;
+esac