1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 94d8ab2..8d27a70 100644
--- a/Makefile
+++ b/Makefile
@@ -143,7 +143,7 @@ z80code: $(Z80CODE)
 include Makefile.local
 
 CFLAGS = $(DEBUG) $(ENDIAN) $(DEFAULT_ROM) $(READLINE) $(DISKDIR) $(IFLAGS) \
-       $(APPDEFAULTS) -DKBWAIT -DHAVE_SIGIO
+       $(APPDEFAULTS) -DKBWAIT
 LIBS = $(XLIB) $(READLINELIBS) $(EXTRALIBS)
 
 ZMACFLAGS = -h