Re: VPATH of the form C:/foo

On Sun, Dec 02, 2007 at 11:52:41AM +0100, Benoit Sigoure wrote:
> On Dec 2, 2007, at 3:37 AM, Christopher Faylor wrote:
>> On Thu, Nov 29, 2007 at 11:36:45PM +0100, Benoit Sigoure wrote:
>>> On Nov 29, 2007, at 10:30 PM, Eli Zaretskii wrote:
>>>>> From: Benoit Sigoure
>>>>> Date: Thu, 29 Nov 2007 22:12:52 +0100
>>>>>
>>>>> build@bf-winxp1 ~ $ make -p VPATH=C:/cygwin | grep -A2 -i vpath
>>>>> [...]
>>>>> --
>>>>> # VPATH Search Paths
>>>>>
>>>>> # No `vpath' search paths.
>>>>>
>>>>> # No general (`VPATH' variable) search path.
>>>>
>>>> Ah, I see the problem: the native Windows port (which is what I have)
>>>> converts all `:' that are not part of drive letter spec to `;' (by
>>>> calling convert_vpath_to_windows32), and then Make parses that using
>>>> `;' as PATH_SEPARATOR_CHAR, which makes "C:/foo:D:/bar" work.  But in
>>>> the Cygwin build, convert_vpath_to_windows32 is not called and
>>>> PATH_SEPARATOR_CHAR is `:', so this does not work.
>>>>
>>>> I will try to post an experimental patch soon.  Thanks for pointing
>>>> out this problem.
>>>
>>> Thank you very much, I'm eager to see the patch ;)
>>
>> This does raise the question of why you'd be using a cygwin version of
>> make if you need to use colon paths.
>
>
> Good question.  The VPATH variable is set by a script that calls `make'.  
> This variable is also used to invoke native Windows tools, so it's more 
> convenient to use the C:/Foo/Bar notation, which has the advantage of 
> working with both native applications and Cygwin ones (while being nice 
> with the shell by avoiding backslashes).

Why not convert the VPATH to UNIX format with cygpath ?

cgf