$OpenBSD$

Remove hardcoded optimizations.
Set lua binary correctly.

Index: Makefile
--- Makefile.orig
+++ Makefile
@@ -1,7 +1,5 @@
 export OBJ = .obj
-export LUA = lua
-export CFLAGS = -g -O0
-export LDFLAGS = -g
+export LUA = ${MODLUA_BIN}
 
 all: $(OBJ)/build.ninja
 	@ninja -f $(OBJ)/build.ninja -k0
