1 files changed, 10 insertions, 2 deletions

diff --git a/uisimulator/x11/Makefile b/uisimulator/x11/Makefile
index 05116edbd9..2ce4606468 100644
--- a/uisimulator/x11/Makefile
+++ b/uisimulator/x11/Makefile
@@ -64,19 +64,27 @@ ifeq ($(UNAME),Linux)
   LDFLAGS = -lX11 -lm -lXt -lXmu -lnsl -ldl
   INCLUDES += -I/usr/X11R6/include
   LIBDIRS = -L/usr/X11R6/lib
-  DEFINES += -DLINUX
+  DEFINES += -DHAVE_OSS
 else
 ifeq ($(UNAME),CYGWIN)
   LDFLAGS = -lSM -lICE -lXt -lX11 -lXmu -lSM -lICE -lX11
   INCLUDES += -I/usr/X11R6/include
   LIBDIRS = -L/usr/X11R6/lib
-  DEFINES += -DLINUX
+  DEFINES += -DHAVE_OSS
+else
+ifeq ($(UNAME),FreeBSD)
+  LIBS = -pthread
+  LDFLAGS = -lX11 -lm -lXt -lXmu
+  INCLUDES += -I/usr/X11R6/include
+  LIBDIRS = -L/usr/X11R6/lib
+  DEFINES += -DHAVE_OSS
 else
   LDFLAGS = -lX11 -lm -lXt -lXmu -lnsl -ldl
   DEFINES += -DBIG_ENDIAN
   LIBDIRS = 
 endif
 endif
+endif
 
 CFLAGS = $(DEBUG) $(DEFINES) $(INCLUDES) -W -Wall