fcstat.c: In function 'FcStatChecksum':
fcstat.c:337:34: warning: pointer targets in passing argument 2 of 'FcDirChecksum' differ in signedness [-Wpointer-sign]
if (FcDirChecksum (file, &statb->st_mtime) == -1)
^
fcstat.c:250:1: note: expected 'time_t *' but argument is of type 'long unsigned int *'
FcDirChecksum (const FcChar8 *dir, time_t *checksum)
^
CCLD fcarch
CCLD libfontconfig.la
make[3]: Leaving directory '/home/v/Downloads/ffmpeg-binary-android/build_scripts/fontconfig-2.13.0/src'
make[2]: Leaving directory '/home/v/Downloads/ffmpeg-binary-android/build_scripts/fontconfig-2.13.0/src'
Making all in fc-cache
make[2]: Entering directory '/home/v/Downloads/ffmpeg-binary-android/build_scripts/fontconfig-2.13.0/fc-cache'
CC fc-cache.o
CCLD fc-cache
/home/v/Downloads/ffmpeg-binary-android/build_scripts/ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: error: cannot find -lharfbuzz
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_face_globals_free: error: undefined reference to 'hb_font_destroy'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_face_globals_free: error: undefined reference to 'hb_buffer_destroy'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_font_get_face'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_ot_tags_from_script'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_create'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_ot_layout_collect_lookups'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_is_empty'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_destroy'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_destroy'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_destroy'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_destroy'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_create'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_ot_layout_lookup_collect_glyphs'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_next'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_create'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_ot_layout_collect_lookups'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_create'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_ot_layout_lookup_collect_glyphs'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_next'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_next'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_ot_layout_lookup_would_substitute'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_subtract'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_coverage: error: undefined reference to 'hb_set_next'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_face_globals_new: error: undefined reference to 'hb_ft_font_create'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_face_globals_new: error: undefined reference to 'hb_buffer_create'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_buf_create: error: undefined reference to 'hb_buffer_create'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_buf_destroy: error: undefined reference to 'hb_buffer_destroy'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_font_set_scale'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_clear_contents'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_add_utf8'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_guess_segment_properties'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_shape'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_clear_contents'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_add_utf8'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_guess_segment_properties'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_shape'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_get_glyph_infos'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_get_glyph_infos'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_get_length'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_cluster: error: undefined reference to 'hb_buffer_clear_contents'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_elem: error: undefined reference to 'hb_buffer_get_glyph_infos'
/home/v/Downloads/ffmpeg-binary-android/build_scripts/build_dir/lib/libfreetype.a(autofit.o):autofit.c:function af_shaper_get_elem: error: undefined reference to 'hb_buffer_get_glyph_positions'
collect2: error: ld returned 1 exit status
Makefile:512: recipe for target 'fc-cache' failed
make[2]: *** [fc-cache] Error 1
make[2]: Leaving directory '/home/v/Downloads/ffmpeg-binary-android/build_scripts/fontconfig-2.13.0/fc-cache'
Makefile:599: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/home/v/Downloads/ffmpeg-binary-android/build_scripts/fontconfig-2.13.0'
Makefile:483: recipe for target 'all' failed
make: *** [all] Error 2
OS: Ubuntu 18.04
I just followed the tutorial and got the following error. NDK that I used https://dl.google.com/android/repository/android-ndk-r15c-linux-x86_64.zip?hl=uk