Re: VPATH of the form C:/foo

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).

-- 
Benoit Sigoure aka Tsuna
EPITA Research and Development Laboratory