X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/48b16bbc0492820cf1fdb683b289c77f4cdadb3d..b09a18c50d221b54e6bc94e03deb65ecd52c4288:/lib/bitset.h

diff --git a/lib/bitset.h b/lib/bitset.h
index 0b6aa6b3..45c8818c 100644
--- a/lib/bitset.h
+++ b/lib/bitset.h
@@ -26,6 +26,10 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 #include "obstack.h"
 #include <stdio.h>
 
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#endif
+
 /* Attributes used to select a bitset implementation.  */
 enum bitset_attr {BITSET_FIXED = 1,    /* Bitset size fixed.  */
 		  BITSET_VARIABLE = 2, /* Bitset size variable.  */