In file included from source_subfolder/encoder/analyse.c:33:0:
source_subfolder/encoder/rdo.c: In function ‘x264_8_quant_8x8_trellis’:
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
             for( i = start; i <= end; i+=step )
             ^~~
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/encoder.c: In function ‘x264_8_encoder_open’:
source_subfolder/encoder/encoder.c:1768:38: warning: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 4 [-Wformat-truncation=]
     snprintf( level, sizeof(level), "%d.%d", h->sps->i_level_idc/10, h->sps->i_level_idc%10 );
                                      ^~
source_subfolder/encoder/encoder.c:1768:37: note: directive argument in the range [-214748364, 214748364]
     snprintf( level, sizeof(level), "%d.%d", h->sps->i_level_idc/10, h->sps->i_level_idc%10 );
                                     ^~~~~~~
source_subfolder/encoder/encoder.c:1768:37: note: directive argument in the range [-9, 9]
In file included from /usr/include/stdio.h:862:0,
                 from source_subfolder/common/osdep.h:33,
                 from source_subfolder/common/base.h:43,
                 from source_subfolder/common/common.h:30,
                 from source_subfolder/encoder/encoder.c:28:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 4 and 14 bytes into a destination of size 4
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from source_subfolder/encoder/analyse.c:33:0:
source_subfolder/encoder/rdo.c: In function ‘x264_10_quant_8x8_trellis’:
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
             for( i = start; i <= end; i+=step )
             ^~~
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/rdo.c:1084:13: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow]
source_subfolder/encoder/encoder.c: In function ‘x264_10_encoder_open’:
source_subfolder/encoder/encoder.c:1768:38: warning: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 4 [-Wformat-truncation=]
     snprintf( level, sizeof(level), "%d.%d", h->sps->i_level_idc/10, h->sps->i_level_idc%10 );
                                      ^~
source_subfolder/encoder/encoder.c:1768:37: note: directive argument in the range [-214748364, 214748364]
     snprintf( level, sizeof(level), "%d.%d", h->sps->i_level_idc/10, h->sps->i_level_idc%10 );
                                     ^~~~~~~
source_subfolder/encoder/encoder.c:1768:37: note: directive argument in the range [-9, 9]
In file included from /usr/include/stdio.h:862:0,
                 from source_subfolder/common/osdep.h:33,
                 from source_subfolder/common/base.h:43,
                 from source_subfolder/common/common.h:30,
                 from source_subfolder/encoder/encoder.c:28:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 4 and 14 bytes into a destination of size 4
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x264 [info]: profile Constrained Baseline, level 3.0, 4:2:0, 8-bit
libx264/20191217: WARN: Error running `configure --help`: Error 1 while executing source_subfolder/configure --help