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?
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