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-rw-r--r--configure.in3
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index 9a28d8af99..0552f02dbb 100644
--- a/configure.in
+++ b/configure.in
@@ -2620,6 +2620,9 @@ AC_SUBST(rubyhdrdir)dnl
AC_SUBST(sitehdrdir)dnl
AC_SUBST(vendorhdrdir)dnl
+AC_ARG_WITH(opt-dir,
+ AS_HELP_STRING([--with-opt-dir=DIR], [add optional headers and libraries DIR]))
+
AC_ARG_WITH(mantype,
AS_HELP_STRING([--with-mantype=TYPE], [specify man page type; TYPE is one of man and doc]),
[