[FFmpeg-devel] [PATCH] build: use Windows path for MSVC

[Hendrik Leppkes]

On Sat, Jan 23, 2016 at 8:16 PM, Andreas Cadhalpun
<andreas.cadhalpun at googlemail.com> wrote:
> On 23.01.2016 17:16, Hendrik Leppkes wrote:
>> On Sat, Jan 23, 2016 at 4:27 PM, Andreas Cadhalpun
>> <andreas.cadhalpun at googlemail.com> wrote:
>>> On 23.01.2016 15:07, Hendrik Leppkes wrote:
>>>> On Sat, Jan 23, 2016 at 2:51 PM, Andreas Cadhalpun
>>>> <andreas.cadhalpun at googlemail.com> wrote:
>>>>> On 23.01.2016 14:48, Hendrik Leppkes wrote:
>>>>>> Unfortunately, cygpath is not guaranteed to be available, and in fact
>>>>>> is not on some working build setups today (ie. msys1 environments with
>>>>>> msvc)
>>>>>
>>>>> Is there another way to get the Windows path on those environments?
>>>>>
>>>>
>>>> Not that I am aware.
>>>
>>> Hmm, sed should be available everywhere.
>>>
>>> Does the attached patch fix the MSVC builds?
>>>
>>
>> Unfortunately these assumptions are also not valid. On cygwin for
>> example, a path would be /cygdrive/C/path/to/folder
>
> How many more strange path conventions are there?
>
> I think all mentioned so far could be supported by using cygpath,
> if available, and sed otherwise.
>
>> Dealing with absolute paths in the unix/windows mixture is just not
>> going to be easy, which is why we were careful to avoid them at all
>> before.
>
> Not really. Out-of-tree builds used absolute path before, which is
> exactly the problem my initial patch fixed.
>

For source files yes, but not for output files, which is the really
problematic case with the MSVC CLI syntax.

- Hendrik