* m4/mkdirp.m4 (AM_PROG_MKDIR_P): Append `.' to $(mkdir_p). * lib/install-sh: Accept `install-sh -d' with 0..n arguments, as well as `install-sh sources... dest' with multiple sources. * tests/cond33.test: New file. * tests/instsh2.test: Add more checks for install-sh. * tests/transform.test: Test for installdirs. * tests/Makefile.am (TESTS): Add cond33.test Report from Ralf Corsepius.