Index: automake-1.12.1/m4/init.m4
===================================================================
--- automake-1.12.1.orig/m4/init.m4	2012-06-01 15:47:10.000000000 +0200
+++ automake-1.12.1/m4/init.m4	2012-06-01 15:47:10.000000000 +0200
@@ -82,6 +82,7 @@ AM_MISSING_PROG([MAKEINFO], [makeinfo])
 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
 # We need awk for the "check" target.  The system "awk" is bad on
 # some platforms.
 AC_REQUIRE([AC_PROG_AWK])dnl