lower case mkdir_p

diff --git a/m4/mkdirp.m4 b/m4/mkdirp.m4
index 064c158dd8b65ead3225d8ed5f211ccd4f58b97d..6f3c21f098f904a54fdb11d6ab958750fbd560fa 100644 (file)
--- a/m4/mkdirp.m4
+++ b/m4/mkdirp.m4
@@ -60,4 +60,6 @@ else
     MKDIR_P='$(install_sh) -d'
   fi
 fi
+mkdir_p=$MKDIR_P
+AC_SUBST([mkdir_p])])
 AC_SUBST([MKDIR_P])])