From b1c0446a3c65e8e22a9ecfd9d24213a2b9eac22b Mon Sep 17 00:00:00 2001
From: Bruce Hill <bitbucket@bruce-hill.com>
Date: Tue, 24 Jul 2018 16:43:06 -0700
Subject: Updating file stuff for better compatibility with Lua 5.2 and fixing
 some bugs. Also updated README to provide more compatibility info and list
 Lua5.2+ as a requirement.

---
 nomsu.moon | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'nomsu.moon')

diff --git a/nomsu.moon b/nomsu.moon
index 44bdf65..bf6a1f6 100755
--- a/nomsu.moon
+++ b/nomsu.moon
@@ -1,5 +1,13 @@
 #!/usr/bin/env moon
 -- This file contains the command-line Nomsu runner.
+
+EXIT_SUCCESS, EXIT_FAILURE = 0, 1
+
+if _VERSION == "Lua 5.1" and not jit
+    -- Cannot run on Lua5.1 because it doesn't have gotos.
+    print("Sorry, Nomsu does not run on Lua 5.1. Please use LuaJIT 2+ or Lua 5.2+")
+    os.exit(EXIT_FAILURE)
+
 if NOMSU_VERSION and NOMSU_PREFIX
     ver_bits = [ver_bit for ver_bit in NOMSU_VERSION\gmatch("[0-9]+")]
     partial_vers = [table.concat(ver_bits,'.',1,i) for i=#ver_bits,1,-1]
@@ -9,7 +17,6 @@ if NOMSU_VERSION and NOMSU_PREFIX
 else
     package.nomsupath = "."
 
-EXIT_SUCCESS, EXIT_FAILURE = 0, 1
 usage = [=[
 Nomsu Compiler
 
-- 
cgit v1.2.3