diff --git a/Makefile b/Makefile
index 1431427..0671796 100644
--- a/Makefile
+++ b/Makefile
@@ -38,9 +38,11 @@ endif
 
 OBJCOPY ?= objcopy
 
+ifneq ($(shell uname),Darwin)
 ifndef GLFW
 $(error GLFW undefined)
 endif
+endif
 
 ifdef I386
 ARCH='-m32'