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Checking the libs doesnt error 

Added pcalls instead of raw requires as suggested by Kikito
This commit is contained in:
Pablo Mayobre 2015-02-08 07:28:31 -03:00
parent e7df9d53cf
commit 57cc66eba6
1 changed files with 4 additions and 3 deletions
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7
md5.lua
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@ -35,9 +35,10 @@ local char, byte, format, rep, sub =
string.char, string.byte, string.format, string.rep, string.sub
local bit_or, bit_and, bit_not, bit_xor, bit_rshift, bit_lshift
if require "bit" or require "bit32" then
local bit = require "bit" or require "bit32"
local ok, bit = pcall(require, 'bit')
if not ok then ok, bit = pcall(require, 'bit32') end
if ok then
bit_or, bit_and, bit_not, bit_xor = bit.bor, bit.band, bit.bnot, bit.bxor
bit_rshift, bit_lshift = bit.rshift, bit.lshift
else