Merged changes from the 1.5.2p2 release.
diff --git a/Doc/tools/mkhowto b/Doc/tools/mkhowto
index 621aa8e..043ac57 100755
--- a/Doc/tools/mkhowto
+++ b/Doc/tools/mkhowto
@@ -330,6 +330,8 @@
         if texfile[:2] == os.curdir + os.sep:
             texfile = texfile[2:]
         # build the command line and run LaTeX2HTML:
+        if not os.path.isdir(builddir):
+            os.mkdir(builddir)
         args = [LATEX2HTML_BINARY,
                 "-init_file", L2H_INIT_FILE,
                 "-init_file", self.l2h_aux_init_file,