On Thu, Apr 14, 2022 at 3:41 PM Martin Storsjö <mar...@martin.st> wrote:
> On Thu, 14 Apr 2022, Mark Gaiser wrote:
>
> > On Thu, Apr 14, 2022 at 10:25 AM Martin Storsjö <mar...@martin.st>
> wrote:
> >
> >> On Wed, 13 Apr 2022, Mark Gaiser wrote:
> >>
> >> > On Wed, Apr 13, 2022 at 5:21 PM Mark Gaiser <mark...@gmail.com>
> wrote:
> >> >
> >> >> PATH_MAX is posix. Some compilers (MSVC) don't define this
> >> >> thus failing to compile the ipfsgateway file.
> >> >> Defining it fixes the compile.
> >> >>
> >> >> Signed-off-by: Mark Gaiser <mark...@gmail.com>
> >> >> ---
> >> >> libavformat/ipfsgateway.c | 6 ++++++
> >> >> 1 file changed, 6 insertions(+)
> >> >>
> >> >> diff --git a/libavformat/ipfsgateway.c b/libavformat/ipfsgateway.c
> >> >> index ed37e552dd..9b0d3dea59 100644
> >> >> --- a/libavformat/ipfsgateway.c
> >> >> +++ b/libavformat/ipfsgateway.c
> >> >> @@ -25,6 +25,12 @@
> >> >> #include "os_support.h"
> >> >> #include "url.h"
> >> >>
> >> >> +// Define the posix PATH_MAX if not there already.
> >> >> +// This fixes a compile issue for MSVC.
> >> >> +#ifndef PATH_MAX
> >> >> +#define PATH_MAX 4096
> >> >> +#endif
> >> >> +
> >> >> typedef struct IPFSGatewayContext {
> >> >> AVClass *class;
> >> >> URLContext *inner;
> >> >> --
> >> >> 2.35.1
> >> >
> >> > I did verify the size of PATH_MAX. On my pc (arch with GCC compiler)
> >> > this value is defined as 4096. That seems enough to me. Another way to
> >> > fix this is to add it in os_support.h. I didn't add it there because
> >> > ipfsgateway.c is currently the only cross-platform code that makes use
> >> > of this.
> >> >
> >> > Lastly, I don't have an MSVC compiler and windows to test this on.
> >> > I hope someone else in that setup can verify that this does indeed fix
> >> the
> >> > ffmpeg master build?
> >>
> >> This looks like a reasonable fix to at least make things build correctly
> >> again (and it does fix the issue).
> >>
> >> FWIW, the corresponding Windows define is MAX_PATH, which usually is
> 260,
> >> so setting it to 4096 here is probably more than enough if a hardcoded
> >> value is needed.
> >>
> >> // Martin
> >>
> >
> > Glad it works! Thank you for testing.
> >
> > I don't have commit/merge powers so I leave that in the capable hands of
> > those that can.
>
> I already pushed this one - I forgot to explicitly spell that out in the
> previous message.
>
Awesome :) Thank you!
>
> // Martin
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