make lua imports version independent

Makefile

@@ -34,7 +34,8 @@ ifneq ($(WITH_LUAJIT),)
 	CFLAGS  += -I$(WITH_LUAJIT)/include
 	LDFLAGS += -L$(WITH_LUAJIT)/lib
 else
-	DEPS += $(ODIR)/lib/libluajit-5.1.a
+	CFLAGS  += -I$(ODIR)/include/luajit-2.0
+	DEPS    += $(ODIR)/lib/libluajit-5.1.a
 endif
 
 ifneq ($(WITH_OPENSSL),)

src/script.h

@@ -2,9 +2,9 @@
 #define SCRIPT_H
 
 #include <stdbool.h>
-#include <luajit-2.0/lua.h>
-#include <luajit-2.0/lualib.h>
-#include <luajit-2.0/lauxlib.h>
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
 #include <unistd.h>
 #include "stats.h"
 #include "wrk.h"

src/wrk.h

@@ -10,7 +10,7 @@
 
 #include <openssl/ssl.h>
 #include <openssl/err.h>
-#include <luajit-2.0/lua.h>
+#include <lua.h>
 
 #include "stats.h"
 #include "ae.h"