Re: Compilation warnings in Lua 5.2.1 (size_t to unsigned int conversion)

[William Ahern <william@...>]

On Wed, Sep 26, 2012 at 10:50:20AM -0300, Luiz Henrique de Figueiredo wrote:
> > So, compiling Lua 5.2.1 on OS X (x86_64) with LLVM compiler 4.1 produces
> > these 2 warnings:
> 
> I get no warnings with the default gcc in my machine (10.7.4 with Xcode
> command line tools for Lion, sure which version, probably the March 2012 one):
> 
> % gcc --version
> i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.9.00)
> 
> I get no warnings with CC=cc, which is:
> 
> % cc --version
> Apple clang version 3.1 (tags/Apple/clang-318.0.54) (based on LLVM 3.1svn)
> Target: x86_64-apple-darwin11.4.0

That's because clang and GCC are competing to add the most obnoxious
diagnostics, and the newest version of clang is usually a step or two ahead.
Just give it one or two releases, and GCC will fall into line.

Eventually they'll both just immediately exit with the diagnostic, "just use
C++ already if you want to cast so much", and then everybody's heads will
explode.