v4l-utils-1.30.1 breaks the FFmpeg-7.1.1 build

Hi Devs,

Not sure if anyone has noticed, but despite the optional v4l-utils dependency mention in ffmpeg,
there is no mention of the required --enable-libv4l2 paramter for it.
Anyway, as the title says, the build fails:

 CC libavdevice/xcbgrab.o
 libavdevice/v4l2.c: In function ‘device_open’:
 libavdevice/v4l2.c:141:17: error: assignment to ‘int (*)(int,  long unsigned int, ...)’ from incompatible pointer type ‘int (*)(int,  int, ...)’ [-Wincompatible-pointer-types]
   141 |     s->ioctl_f  = prefix ## ioctl;      \
       |                 ^
 libavdevice/v4l2.c:149:9: note: in expansion of macro ‘SET_WRAPPERS’
   149 |         SET_WRAPPERS(v4l2_);
       |         ^~~~~~~~~~~~
 CC libavfilter/aeval.o
 CC libavfilter/af_aap.o
 CC libavfilter/af_acontrast.o
 make: *** [ffbuild/common.mak:81: libavdevice/v4l2.o] Error 1
 make: *** Waiting for unfinished jobs....
 In file included from ./libavutil/common.h:48,
                  from ./libavutil/avutil.h:301,
                  from ./libavutil/opt.h:31,
                  from libavdevice/sdl2.c:31:
 ./config.h:336:9: warning: "HAVE_PTHREAD_SETNAME_NP" redefined
   336 | #define HAVE_PTHREAD_SETNAME_NP 0
       |         ^~~~~~~~~~~~~~~~~~~~~~~
 In file included from /usr/include/SDL2/SDL_stdinc.h:33,
                  from /usr/include/SDL2/SDL_main.h:25,
                  from /usr/include/SDL2/SDL.h:31,
                  from libavdevice/sdl2.c:26:
 /usr/include/SDL2/SDL_config.h:209:9: note: this is the location of the previous definition
   209 | #define HAVE_PTHREAD_SETNAME_NP 1
       |         ^~~~~~~~~~~~~~~~~~~~~~~


Regards,
Wayne.

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