Looks good to me.  It was only reverted last time because of the failing tests 
on the mingw buildbot that I didn't have time to diagnose.

David

On 26 Jun 2014, at 15:18, Logan Chien <[email protected]> wrote:

> Hi,
> 
> Is it OK to commit this?  Thanks.
> 
> Logan
> 
> 
> On Thu, Jun 26, 2014 at 4:01 PM, David Chisnall <[email protected]> 
> wrote:
> On 25 Jun 2014, at 19:20, Tim Northover <[email protected]> wrote:
> 
> >> It's a bit binutils-centric isn't it? Can't we make it accept a
> >> basename instead, so that any new or otherwise odd (ld.gold-2.25? lld?
> >> mclinker?) linker can be used instead without modifying Clang.
> >
> > *Sigh*. Apologies. I've just noticed this comes from GCC land, so
> > we've probably got to follow for compatibility. After all, why would
> > anyone want to use anything except the system-default ld.gold or
> > ld.bfd, they're perfect!
> 
> The gcc version hard-codes gold and bfd as the two valid options.  My patch, 
> which Logan has cleaned up and fixed, allows --fuse-ld= to take a string and 
> then searches for a program called ld.{whatever the argument string was}.  
> This means that you can install lld and create an ld.lld->lld symlink and 
> have -fuse-ld=lld work without having to change the clang code.
> 
> In discussion when I wrote this patch, the consensus was that we should 
> (initially, at least), only support linkers that had command-line syntax 
> compatible with the system linker via this option.  If the linker needs 
> different arguments, then some more invasive changes are required.  This 
> should be enough for users to switch between bfd ld, gold, lld, and mclinker, 
> however (and hopefully bold once it is released) on ELF platforms.
> 
> David
> 


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