Mkdir lib/lib with -p in configure so it is idempotent.

diff --git a/src/configure.ac b/src/configure.ac
index 274a57d8ad6b70c0f4a4528148c2fa4bf7fa76cc..7e4e1b495c70ba3ad5f9439f60415d1c48dfcbdf 100644 (file)
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -465,7 +465,7 @@ if test x"${mit_scheme_native_code}" = xc; then
     for BN in star-parser; do
         (cd lib; rm -f ${BN}; ${LN_S} ../${BN} .)
     done
-    mkdir lib/lib
+    mkdir -p lib/lib
     for BUNDLE in 6001 compiler cref ffi sf sos ssp star-parser \
                  xdoc xml; do
        SO=${BUNDLE}.so