Re: [PATCH 0/7] Support for toolchains that are not $host-native.

[Peter Rosin]

Den 2010-09-02 16:08 skrev Peter Rosin:
> Den 2010-09-02 16:02 skrev Charles Wilson:
>> On 9/2/2010 9:06 AM, Peter Rosin wrote:
>>> However, my previous suggestion with a naive_slashify instead of
>>> naive_backslashify doesn't work either since MSYS turns @c:/foobar into
>>> @c;c:\msys\1.0\foobar (or something similar, that was from memory) which
>>> we must avoid at all cost. cygpath -m (instead of -w) is fine on Cygwin
>>> though since Cygwin doesn't clobber @c:/foobar "for us".
>>>
>>> Maybe we can work around this by sanitizing the input files in ar-lib,
>>> but that seems a bit horrible to me... I'll see if I can fix this
>>> somehow. Suggestions welcome.
>>
>> Actually, I think MSYS's heuristic for determining whether an argument
>> contains a path -- and whether that path is already a dos-style one --
>> should be improved so that args which match the regex
>> 'address@hidden:alpha:]]:[/\]' are understood as dos-style abspaths.
>>
>> I'll look into that.
> 
> That would be nice indeed.
> 
>> Oh, wait.
>>
>> We'd also need to add exceptions for all of MSVC's command switches,
>> which prohibit spaces between the switch and that path: -FoC:/bob/,
>> -FeD:/fred, etc.  Ick.
>>
>> I dunno if that's worth the effort -- or if it would even be accepted.
>> After all, MSYS's reason for existence is to support MinGW, not MSVC...
>> I could justify adding the '@' heuristic, because MinGW ar can use it,
>> but the rest...
>>
>> What do you think, Peter?
> 
> The rest is handled by the compile script (in automake) in my case...

Ahh, now I see what you mean here. If we have already transformed
-o /bob/... into -FoC:/bob/... and then MSYS thinks it's a path
and in turn makes it into -Foc;c:\msys\1.0\bob\..., then we're
really up shit creek...

But luckily, MSYS apparently does not handle -FoC:/bob/... the
same way it handles @C:/bob/..., so we are safe...

I have verified that "cl -c -FoC:/foo.obj C:/foo.c" does indeed
create a c:/foo.obj file.

Cheers,
Peter