Add lots of GPL versions.

[runlisp] / configure.ac

diff --git a/configure.ac b/configure.ac
index f99af941427b06cb0b43b6570cae168cfe1cffd8..919d367afa60dc0cd5301386617bea7aadc1867f 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -34,6 +34,8 @@ AC_CONFIG_AUX_DIR([config])
 AM_INIT_AUTOMAKE([foreign])
 mdw_SILENT_RULES
 
+AC_PROG_LN_S
+
 dnl--------------------------------------------------------------------------
 dnl Finding installation directories.