Merged revisions 88475 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r88475 | ned.deily | 2011-02-21 12:44:27 -0800 (Mon, 21 Feb 2011) | 3 lines

  Issue #11268: Prevent Mac OS X Installer failure if Documentation
  package had previously been installed.
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diff --git a/Mac/BuildScript/scripts/postflight.documentation b/Mac/BuildScript/scripts/postflight.documentation
index 30d2ee5..31fbf2f 100755
--- a/Mac/BuildScript/scripts/postflight.documentation
+++ b/Mac/BuildScript/scripts/postflight.documentation
@@ -27,6 +27,6 @@
 if [ -d "${SHARE_DIR}" ]; then
     mkdir -p "${SHARE_DOCDIR}"
     # make relative link to html doc directory
-    ln -s "${SHARE_DOCDIR_TO_FWK}/${FWK_DOCDIR_SUBPATH}" "${SHARE_DOCDIR}/html"
+    ln -fhs "${SHARE_DOCDIR_TO_FWK}/${FWK_DOCDIR_SUBPATH}" "${SHARE_DOCDIR}/html"
 fi