diff --git a/makefile.unix b/makefile.unix
index 057b63ec..826b956e 100644
--- a/makefile.unix
+++ b/makefile.unix
@@ -25,6 +25,7 @@ ifeq ($(strip $(shell uname)), Darwin)
   # Failure observed with: gcc 4.2.1 and 4.0.1.
   EXTRA_FLAGS += -fno-common
   EXTRA_FLAGS += -DHAVE_GLUT_GLUT_H
+  EXTRA_FLAGS += -Wno-deprecated-declarations
   EXTRA_FLAGS += -I/opt/local/include
   EXTRA_LIBS  += -L/opt/local/lib
   GL_LIBS = -framework GLUT -framework OpenGL