snprintf(buf, AV_TIMECODE_STR_SIZE, %s%02d:%02d:%02d%c%02d,
                                                            ^~~~
libavutil/timecode.c:121:41: note: directive argument in the range [0, 2147483647]
     snprintf(buf, AV_TIMECODE_STR_SIZE, %s%02d:%02d:%02d%c%02d,
                                         ^~~~~~~~~~~~~~~~~~~~~~~~
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 12 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 ())
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
X86ASM	libavutil/x86/float_dsp.o
CC	libavutil/x86/float_dsp_init.o
X86ASM	libavutil/x86/imgutils.o
CC	libavutil/x86/imgutils_init.o
X86ASM	libavutil/x86/lls.o
CC	libavutil/x86/lls_init.o
X86ASM	libavutil/x86/pixelutils.o
CC	libavutil/x86/pixelutils_init.o
X86ASM	libavutil/x86/tx_float.o
CC	libavutil/x86/tx_float_init.o
CC	libavutil/xga_font_data.o
CC	libavutil/xtea.o
GEN	libavutil/libavutil.pc
STRIP	libavutil/x86/fixed_dsp.o
skipping strip -x libavutil/x86/fixed_dsp.o
STRIP	libavutil/x86/cpuid.o
skipping strip -x libavutil/x86/cpuid.o
HOSTCC	doc/print_options.o
CC	fftools/ffmpeg_opt.o
TXT	doc/fate.txt
CC	fftools/ffmpeg_filter.o
STRIP	libavutil/x86/imgutils.o
skipping strip -x libavutil/x86/imgutils.o
CC	fftools/ffmpeg_hw.o
CC	fftools/cmdutils.o
CC	fftools/ffmpeg.o
CC	fftools/ffplay.o
fftools/cmdutils.c: In function 'opt_cpucount':
fftools/cmdutils.c:865:72: warning: initialization makes integer from pointer without a cast [-Wint-conversion]
         {count, NULL, 0, AV_OPT_TYPE_INT, { .i64 = -1}, -1, INT_MAX, NULL},
                                                                        ^~~~
fftools/cmdutils.c:865:72: note: (near initialization for 'opts[0].flags')
CC	fftools/ffprobe.o
STRIP	libavcodec/x86/vp8dsp_loopfilter.o
skipping strip -x libavcodec/x86/vp8dsp_loopfilter.o
AR	libavdevice/libavdevice.a
STRIP	libavcodec/x86/vp9intrapred.o
skipping strip -x libavcodec/x86/vp9intrapred.o
AR	libavfilter/libavfilter.a
AR	libavformat/libavformat.a
HOSTLD	doc/print_options
GENTEXI	doc/avoptions_codec.texi
GENTEXI	doc/avoptions_format.texi
STRIP	libavutil/x86/lls.o
skipping strip -x libavutil/x86/lls.o
HTML	doc/ffmpeg.html
HTML	doc/ffplay.html
HTML	doc/ffprobe.html
HTML	doc/ffmpeg-all.html
HTML	doc/ffplay-all.html
HTML	doc/ffmpeg-utils.html
HTML	doc/ffprobe-all.html
HTML	doc/ffmpeg-scaler.html
STRIP	libavutil/x86/float_dsp.o
skipping strip -x libavutil/x86/float_dsp.o
HTML	doc/ffmpeg-resampler.html
HTML	doc/ffmpeg-codecs.html
HTML	doc/ffmpeg-bitstream-filters.html
STRIP	libavcodec/x86/vp9intrapred_16bpp.o
skipping strip -x libavcodec/x86/vp9intrapred_16bpp.o
STRIP	libswresample/x86/audio_convert.o
skipping strip -x libswresample/x86/audio_convert.o
HTML	doc/ffmpeg-formats.html
HTML	doc/ffmpeg-protocols.html
HTML	doc/ffmpeg-devices.html
HTML	doc/libavutil.html
HTML	doc/ffmpeg-filters.html
STRIP	libavutil/x86/pixelutils.o
skipping strip -x libavutil/x86/pixelutils.o
HTML	doc/libswscale.html
HTML	doc/libswresample.html
HTML	doc/libavcodec.html
HTML	doc/libavformat.html
HTML	doc/libavdevice.html
HTML	doc/libavfilter.html
HTML	doc/developer.html
HTML	doc/faq.html
HTML	doc/fate.html
HTML	doc/general.html
HTML	doc/git-howto.html
HTML	doc/mailing-list-faq.html
HTML	doc/nut.html
HTML	doc/platform.html
POD	doc/ffmpeg.pod
STRIP	libswscale/x86/scale.o
skipping strip -x libswscale/x86/scale.o
POD	doc/ffplay.pod
POD	doc/ffprobe.pod
POD	doc/ffmpeg-utils.pod
POD	doc/ffmpeg-all.pod
POD	doc/ffmpeg-scaler.pod
POD	doc/ffmpeg-resampler.pod
POD	doc/ffplay-all.pod
POD	doc/ffprobe-all.pod
POD	doc/ffmpeg-bitstream-filters.pod
POD	doc/ffmpeg-codecs.pod
POD	doc/ffmpeg-formats.pod
POD	doc/ffmpeg-protocols.pod
POD	doc/ffmpeg-devices.pod
POD	doc/ffmpeg-filters.pod
POD	doc/libavutil.pod
POD	doc/libswscale.pod
POD	doc/libavcodec.pod
POD	doc/libswresample.pod
POD	doc/libavformat.pod
MAN	doc/ffmpeg.1
POD	doc/libavdevice.pod
POD	doc/libavfilter.pod
MAN	doc/ffmpeg-utils.1
MAN	doc/ffmpeg-scaler.1
MAN	doc/ffmpeg-resampler.1
MAN	doc/ffmpeg-codecs.1
MAN	doc/ffmpeg-bitstream-filters.1
MAN	doc/ffmpeg-formats.1
MAN	doc/ffmpeg-protocols.1
MAN	doc/ffmpeg-devices.1
MAN	doc/libavutil.3
MAN	doc/libswscale.3
MAN	doc/libswresample.3
MAN	doc/libavcodec.3
MAN	doc/libavformat.3
STRIP	libavcodec/x86/hevc_deblock.o
skipping strip -x libavcodec/x86/hevc_deblock.o
MAN	doc/libavdevice.3
MAN	doc/libavfilter.3
MAN	doc/ffplay.1
AR	libswresample/libswresample.a
MAN	doc/ffprobe.1
MAN	doc/ffmpeg-filters.1
MAN	doc/ffprobe-all.1
MAN	doc/ffplay-all.1
MAN	doc/ffmpeg-all.1
AR	libpostproc/libpostproc.a
doc/filters.texi:24014: @ref reference to nonexistent node `hstack'
doc/filters.texi:24024: @ref reference to nonexistent node `hstack'
doc/filters.texi:24034: @ref reference to nonexistent node `vstack'
doc/filters.texi:24044: @ref reference to nonexistent node `vstack'
doc/filters.texi:24054: @ref reference to nonexistent node `xstack_qsv'
doc/filters.texi:24064: @ref reference to nonexistent node `xstack'
doc/filters.texi:24071: @ref reference to nonexistent node `xstack'
doc/filters.texi:24074: @ref reference to nonexistent node `xstack'
make: *** [doc/ffmpeg-filters.html] Error 1
make: *** Waiting for unfinished jobs....
doc/Makefile:66: recipe for target 'doc/ffmpeg-filters.html' failed
STRIP	libavcodec/x86/vp9lpf_16bpp.o
skipping strip -x libavcodec/x86/vp9lpf_16bpp.o
doc/filters.texi:24014: @ref reference to nonexistent node `hstack'
doc/filters.texi:24024: @ref reference to nonexistent node `hstack'
doc/filters.texi:24034: @ref reference to nonexistent node `vstack'
doc/filters.texi:24044: @ref reference to nonexistent node `vstack'
doc/filters.texi:24054: @ref reference to nonexistent node `xstack_qsv'
doc/filters.texi:24064: @ref reference to nonexistent node `xstack'
doc/filters.texi:24071: @ref reference to nonexistent node `xstack'
doc/filters.texi:24074: @ref reference to nonexistent node `xstack'
make: *** [doc/ffplay-all.html] Error 1
doc/Makefile:70: recipe for target 'doc/ffplay-all.html' failed
doc/filters.texi:24014: @ref reference to nonexistent node `hstack'
doc/filters.texi:24024: @ref reference to nonexistent node `hstack'
doc/filters.texi:24034: @ref reference to nonexistent node `vstack'
doc/filters.texi:24044: @ref reference to nonexistent node `vstack'
doc/filters.texi:24054: @ref reference to nonexistent node `xstack_qsv'
doc/filters.texi:24064: @ref reference to nonexistent node `xstack'
doc/filters.texi:24071: @ref reference to nonexistent node `xstack'
doc/filters.texi:24074: @ref reference to nonexistent node `xstack'
make: *** [doc/ffprobe-all.html] Error 1
doc/Makefile:70: recipe for target 'doc/ffprobe-all.html' failed
STRIP	libavutil/x86/tx_float.o
skipping strip -x libavutil/x86/tx_float.o
doc/filters.texi:24014: @ref reference to nonexistent node `hstack'
doc/filters.texi:24024: @ref reference to nonexistent node `hstack'
doc/filters.texi:24034: @ref reference to nonexistent node `vstack'
doc/filters.texi:24044: @ref reference to nonexistent node `vstack'
doc/filters.texi:24054: @ref reference to nonexistent node `xstack_qsv'
doc/filters.texi:24064: @ref reference to nonexistent node `xstack'
doc/filters.texi:24071: @ref reference to nonexistent node `xstack'
doc/filters.texi:24074: @ref reference to nonexistent node `xstack'
make: *** [doc/ffmpeg-all.html] Error 1
doc/Makefile:70: recipe for target 'doc/ffmpeg-all.html' failed
STRIP	libavcodec/x86/vp9itxfm_16bpp.o
skipping strip -x libavcodec/x86/vp9itxfm_16bpp.o
STRIP	libavcodec/x86/simple_idct.o
skipping strip -x libavcodec/x86/simple_idct.o
STRIP	libavcodec/x86/vp9lpf.o
skipping strip -x libavcodec/x86/vp9lpf.o
STRIP	libavcodec/x86/hevc_mc.o
skipping strip -x libavcodec/x86/hevc_mc.o
STRIP	libavcodec/x86/vp9itxfm.o
skipping strip -x libavcodec/x86/vp9itxfm.o