$OpenBSD$

Index: nyan/CMakeLists.txt
--- nyan/CMakeLists.txt.orig
+++ nyan/CMakeLists.txt
@@ -11,7 +11,7 @@ if (APPLE)
 	endif ()
 endif ()
 
-find_package(FLEX 2.6 REQUIRED)
+find_package(FLEX 2.5 REQUIRED)
 
 set(nyanl_cpp "${CMAKE_CURRENT_BINARY_DIR}/flex.gen.cpp")
 set(nyanl_h "${CMAKE_CURRENT_BINARY_DIR}/flex.gen.h")
