+# ------------------------------------------------------------------------------
+# we use python to build the man page index
+have_python=no
+AC_ARG_WITH([python],
+ [AS_HELP_STRING([--without-python], [Disable building the man page index and systemd-python (default: test)])])
+
+have_lxml=no
+AS_IF([test "x$with_python" != "xno"], [
+ AM_PATH_PYTHON(,, [:])
+ AS_IF([test "x$PYTHON" != "x:"], [
+ AC_MSG_CHECKING([for python lxml module])
+ AS_IF(["$PYTHON" -c 'import lxml' 2>/dev/null], [have_lxml=yes])
+ AC_MSG_RESULT([$have_lxml])
+ AS_IF([test "x$have_lxml" = "xyes"], [have_python=yes],
+ [AC_MSG_WARN([*** python support requires python-lxml module installed])])
+ ])
+])
+AS_IF([test "$have_python" != "yes"], [
+ AS_IF([test "$with_python" = "yes"],
+ [AC_MSG_ERROR([*** python support requested but python support not found])])
+ AS_IF([test "$with_python" != "no"],
+ [AC_MSG_WARN([*** python support not found, some documentation cannot be built])])
+])
+
+AM_CONDITIONAL([HAVE_PYTHON], [test "x$have_python" = "xyes"])
+