from libavformat/avformat.h:310,
                 from libavformat/smoothstreamingenc.c:27:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 6 and 1029 bytes into a destination of size 1024
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/vorbiscomment.c: In function 'ff_vorbiscomment_write':
libavformat/vorbiscomment.c:103:63: warning: '%03d' directive output may be truncated writing between 3 and 10 bytes into a region of size 4 [-Wformat-truncation=]
             snprintf(chapter_number, sizeof(chapter_number), '%03d', i);
                                                               ^~~~
libavformat/vorbiscomment.c:103:62: note: directive argument in the range [0, 2147483647]
             snprintf(chapter_number, sizeof(chapter_number), '%03d', i);
                                                              ^~~~~~
In file included from /usr/include/stdio.h:862:0,
                 from libavformat/avio.h:30,
                 from libavformat/vorbiscomment.c:22:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 4 and 11 bytes into a destination of size 4
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/vorbiscomment.c:104:69: warning: '%02d' directive output may be truncated writing between 2 and 3 bytes into a region of size between 1 and 7 [-Wformat-truncation=]
             snprintf(chapter_time, sizeof(chapter_time), '%02d:%02d:%02d.%03d', h, m, s, ms);
                                                                     ^~~~
libavformat/vorbiscomment.c:104:58: note: directive argument in the range [-59, 59]
             snprintf(chapter_time, sizeof(chapter_time), '%02d:%02d:%02d.%03d', h, m, s, ms);
                                                          ^~~~~~~~~~~~~~~~~~~~~
libavformat/vorbiscomment.c:104:58: note: directive argument in the range [-999, 999]
In file included from /usr/include/stdio.h:862:0,
                 from libavformat/avio.h:30,
                 from libavformat/vorbiscomment.c:22:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 13 and 21 bytes into a destination of size 13
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from libavcodec/aacdec.c:261:0:
libavcodec/aacdec_template.c: In function 'sniff_channel_order':
libavcodec/aacdec_template.c:322:47: warning: array subscript is above array bounds [-Warray-bounds]
             ff_aac_channel_map[layer][pos - 1][j+1] == AV_CHAN_NONE)
             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
libavcodec/aacdec_template.c:322:47: warning: array subscript is above array bounds [-Warray-bounds]
             ff_aac_channel_map[layer][pos - 1][j+1] == AV_CHAN_NONE)
             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
In file included from libavcodec/aacdec_fixed.c:495:0:
libavcodec/aacdec_template.c: In function 'sniff_channel_order':
libavcodec/aacdec_template.c:322:47: warning: array subscript is above array bounds [-Warray-bounds]
             ff_aac_channel_map[layer][pos - 1][j+1] == AV_CHAN_NONE)
             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
libavcodec/aacdec_template.c:322:47: warning: array subscript is above array bounds [-Warray-bounds]
             ff_aac_channel_map[layer][pos - 1][j+1] == AV_CHAN_NONE)
             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
libavcodec/dvenc.c: In function 'dv_encode_video_segment':
libavcodec/dvenc.c:813:81: warning: array subscript is above array bounds [-Warray-bounds]
                                     for (a2 = a + 1; b->next[k] >= mb_area_start[a2 + 1]; a2++)
                                                                    ~~~~~~~~~~~~~^~~~~~~~
libavcodec/dvenc.c:813:81: warning: array subscript is above array bounds [-Warray-bounds]
libavcodec/mobiclip.c: In function 'add_coefficients':
libavcodec/mobiclip.c:469:24: warning: array subscript is above array bounds [-Warray-bounds]
             int a = mat[x * size + y];
                     ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:473:16: warning: array subscript is above array bounds [-Warray-bounds]
             mat[x * size + y] = b;
             ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:469:24: warning: array subscript is above array bounds [-Warray-bounds]
             int a = mat[x * size + y];
                     ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:473:16: warning: array subscript is above array bounds [-Warray-bounds]
             mat[x * size + y] = b;
             ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:469:24: warning: array subscript is above array bounds [-Warray-bounds]
             int a = mat[x * size + y];
                     ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:473:16: warning: array subscript is above array bounds [-Warray-bounds]
             mat[x * size + y] = b;
             ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:469:24: warning: array subscript is above array bounds [-Warray-bounds]
             int a = mat[x * size + y];
                     ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:473:16: warning: array subscript is above array bounds [-Warray-bounds]
             mat[x * size + y] = b;
             ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:469:24: warning: array subscript is above array bounds [-Warray-bounds]
             int a = mat[x * size + y];
                     ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:473:16: warning: array subscript is above array bounds [-Warray-bounds]
             mat[x * size + y] = b;
             ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:469:24: warning: array subscript is above array bounds [-Warray-bounds]
             int a = mat[x * size + y];
                     ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:473:16: warning: array subscript is above array bounds [-Warray-bounds]
             mat[x * size + y] = b;
             ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:469:24: warning: array subscript is above array bounds [-Warray-bounds]
             int a = mat[x * size + y];
                     ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:473:16: warning: array subscript is above array bounds [-Warray-bounds]
             mat[x * size + y] = b;
             ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:469:24: warning: array subscript is above array bounds [-Warray-bounds]
             int a = mat[x * size + y];
                     ~~~^~~~~~~~~~~~~~
libavcodec/mobiclip.c:473:16: warning: array subscript is above array bounds [-Warray-bounds]
             mat[x * size + y] = b;
             ~~~^~~~~~~~~~~~~~
libavutil/timecode.c: In function 'av_timecode_make_string':
libavutil/timecode.c:123:60: warning: '%0*d' directive output may be truncated writing between 1 and 10 bytes into a region of size between 2 and 14 [-Wformat-truncation=]
     snprintf(buf, AV_TIMECODE_STR_SIZE, '%s%02d:%02d:%02d%c%0*d',
                                                            ^~~~
libavutil/timecode.c:123:41: note: directive argument in the range [0, 2147483647]
     snprintf(buf, AV_TIMECODE_STR_SIZE, '%s%02d:%02d:%02d%c%0*d',
                                         ^~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/stdio.h:862:0,
                 from libavutil/timecode.c:29:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 11 and 32 bytes into a destination of size 23
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/SDL2/SDL_stdinc.h:31:0,
                 from /usr/include/SDL2/SDL_main.h:25,
                 from /usr/include/SDL2/SDL.h:32,
                 from fftools/ffplay_renderer.h:22,
                 from fftools/ffplay_renderer.c:23:
/usr/include/SDL2/SDL_config.h:186:0: warning: 'HAVE_PTHREAD_SETNAME_NP' redefined
 #define HAVE_PTHREAD_SETNAME_NP 1
 
In file included from fftools/ffplay_renderer.c:22:0:
./config.h:335:0: note: this is the location of the previous definition
 #define HAVE_PTHREAD_SETNAME_NP 0
 
In file included from /usr/include/SDL2/SDL_stdinc.h:31:0,
                 from /usr/include/SDL2/SDL_main.h:25,
                 from /usr/include/SDL2/SDL.h:32,
                 from fftools/ffplay.c:54:
/usr/include/SDL2/SDL_config.h:186:0: warning: 'HAVE_PTHREAD_SETNAME_NP' redefined
 #define HAVE_PTHREAD_SETNAME_NP 1
 
In file included from fftools/ffplay.c:26:0:
./config.h:335:0: note: this is the location of the previous definition
 #define HAVE_PTHREAD_SETNAME_NP 0
 
doc/ffmpeg.texi:2107: warning: @end missing argument
doc/ffmpeg.texi:2109: @item outside of table or list
doc/ffmpeg.texi:2140: @item outside of table or list
doc/ffmpeg.texi:2143: @item outside of table or list
doc/ffmpeg.texi:2151: @item outside of table or list
doc/ffmpeg.texi:2268: @item outside of table or list
doc/ffmpeg.texi:2273: @item outside of table or list
doc/ffmpeg.texi:2277: @item outside of table or list
doc/ffmpeg.texi:2283: @item outside of table or list
doc/ffmpeg.texi:2290: @item outside of table or list
doc/ffmpeg.texi:2300: @item outside of table or list
doc/ffmpeg.texi:2305: @item outside of table or list
doc/ffmpeg.texi:2331: @item outside of table or list
doc/ffmpeg.texi:2341: @item outside of table or list
doc/ffmpeg.texi:2346: @item outside of table or list
doc/ffmpeg.texi:2349: @item outside of table or list
doc/ffmpeg.texi:2358: @item outside of table or list
doc/ffmpeg.texi:2363: @item outside of table or list
doc/ffmpeg.texi:2373: @item outside of table or list
doc/ffmpeg.texi:2381: @item outside of table or list
doc/ffmpeg.texi:2382: @item outside of table or list
doc/ffmpeg.texi:2383: @item outside of table or list
doc/ffmpeg.texi:2400: @item outside of table or list
doc/ffmpeg.texi:2401: @item outside of table or list
doc/ffmpeg.texi:2402: @item outside of table or list
doc/ffmpeg.texi:2502: `@end' expected `example', but saw `table'
make: *** [doc/ffmpeg.html] Error 1
make: *** Waiting for unfinished jobs....
doc/ffmpeg.texi:2107: warning: @end missing argument
doc/ffmpeg.texi:2109: @item outside of table or list
doc/ffmpeg.texi:2140: @item outside of table or list
doc/ffmpeg.texi:2143: @item outside of table or list
doc/ffmpeg.texi:2151: @item outside of table or list
doc/ffmpeg.texi:2268: @item outside of table or list
doc/ffmpeg.texi:2273: @item outside of table or list
doc/ffmpeg.texi:2277: @item outside of table or list
doc/ffmpeg.texi:2283: @item outside of table or list
doc/ffmpeg.texi:2290: @item outside of table or list
doc/ffmpeg.texi:2300: @item outside of table or list
doc/ffmpeg.texi:2305: @item outside of table or list
doc/ffmpeg.texi:2331: @item outside of table or list
doc/ffmpeg.texi:2341: @item outside of table or list
doc/ffmpeg.texi:2346: @item outside of table or list
doc/ffmpeg.texi:2349: @item outside of table or list
doc/ffmpeg.texi:2358: @item outside of table or list
doc/ffmpeg.texi:2363: @item outside of table or list
doc/ffmpeg.texi:2373: @item outside of table or list
doc/ffmpeg.texi:2381: @item outside of table or list
doc/ffmpeg.texi:2382: @item outside of table or list
doc/ffmpeg.texi:2383: @item outside of table or list
doc/ffmpeg.texi:2400: @item outside of table or list
doc/ffmpeg.texi:2401: @item outside of table or list
doc/ffmpeg.texi:2402: @item outside of table or list
doc/ffmpeg.texi:2502: `@end' expected `example', but saw `table'
make: *** [doc/ffmpeg-all.html] Error 1