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+# man-arg-undoc.m4 serial 1
+dnl MAN_ARG_UNDOC
+dnl Add an --enable-undoc option.
+
+AC_DEFUN([MAN_ARG_UNDOC],
+[
+AC_ARG_ENABLE([undoc],
+[AS_HELP_STRING([--enable-undoc=COMMAND], [suggest COMMAND for missing manual pages])],
+ [if test "$enableval" = "yes" || test "$enableval" = "no"
+ then
+ AC_MSG_ERROR([--enable-undoc requires an argument])
+ else
+ AC_MSG_NOTICE([Suggesting '$enableval' for missing manual pages])
+ AC_DEFINE_UNQUOTED([UNDOC_COMMAND], ["$enableval"],
+ [Define as the name of a command you want to suggest when a non-existent page is requested.])
+ fi])
+])