>>> mpv 0.29.1 Extracting
gzip -d -c /home/buildroot/build/instance-3/buildroot/instance-3/dl/mpv/v0.29.1.tar.gz | tar --strip-components=1 -C /home/buildroot/build/instance-3/output/build/mpv-0.29.1   -xf -
>>> mpv 0.29.1 Patching

Applying 0001-wscript-don-t-check-for-fork-on-POSIX-checks.patch using patch: 
patching file wscript
Hunk #1 succeeded at 151 with fuzz 2 (offset 24 lines).

Applying 0002-fix-powerpc64-altivec.patch using patch: 
patching file waftools/detections/compiler.py
Hunk #1 succeeded at 44 (offset 1 line).
>>> mpv 0.29.1 Configuring
cd /home/buildroot/build/instance-3/output/build/mpv-0.29.1/ && PATH="/home/buildroot/build/instance-3/output/host/bin:/home/buildroot/build/instance-3/output/host/sbin:/sbin:/usr/sbin:/bin:/usr/bin" AR="/home/buildroot/build/instance-3/output/host/bin/i586-linux-ar" AS="/home/buildroot/build/instance-3/output/host/bin/i586-linux-as" LD="/home/buildroot/build/instance-3/output/host/bin/i586-linux-ld" NM="/home/buildroot/build/instance-3/output/host/bin/i586-linux-nm" CC="/home/buildroot/build/instance-3/output/host/bin/i586-linux-gcc" GCC="/home/buildroot/build/instance-3/output/host/bin/i586-linux-gcc" CPP="/home/buildroot/build/instance-3/output/host/bin/i586-linux-cpp" CXX="/home/buildroot/build/instance-3/output/host/bin/i586-linux-g++" FC="/home/buildroot/build/instance-3/output/host/bin/i586-linux-gfortran" F77="/home/buildroot/build/instance-3/output/host/bin/i586-linux-gfortran" RANLIB="/home/buildroot/build/instance-3/output/host/bin/i586-linux-ranlib" READELF="/home/buildroot/build/instance-3/output/host/bin/i586-linux-readelf" STRIP="/home/buildroot/build/instance-3/output/host/bin/i586-linux-strip" OBJCOPY="/home/buildroot/build/instance-3/output/host/bin/i586-linux-objcopy" OBJDUMP="/home/buildroot/build/instance-3/output/host/bin/i586-linux-objdump" AR_FOR_BUILD="/usr/bin/ar" AS_FOR_BUILD="/usr/bin/as" CC_FOR_BUILD="/usr/bin/gcc" GCC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++" LD_FOR_BUILD="/usr/bin/ld" CPPFLAGS_FOR_BUILD="-I/home/buildroot/build/instance-3/output/host/include" CFLAGS_FOR_BUILD="-O2 -I/home/buildroot/build/instance-3/output/host/include" CXXFLAGS_FOR_BUILD="-O2 -I/home/buildroot/build/instance-3/output/host/include" LDFLAGS_FOR_BUILD="-L/home/buildroot/build/instance-3/output/host/lib -Wl,-rpath,/home/buildroot/build/instance-3/output/host/lib" FCFLAGS_FOR_BUILD="" DEFAULT_ASSEMBLER="/home/buildroot/build/instance-3/output/host/bin/i586-linux-as" DEFAULT_LINKER="/home/buildroot/build/instance-3/output/host/bin/i586-linux-ld" CPPFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64" CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os  " CXXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os  " LDFLAGS="" FCFLAGS=" -Os " FFLAGS=" -Os " PKG_CONFIG="/home/buildroot/build/instance-3/output/host/bin/pkg-config" STAGING_DIR="/home/buildroot/build/instance-3/output/host/i586-buildroot-linux-musl/sysroot" INTLTOOL_PERL=/usr/bin/perl  /home/buildroot/build/instance-3/output/host/bin/python2 /home/buildroot/build/instance-3/output/host/bin/waf configure --prefix=/usr --libdir=/usr/lib --prefix=/usr --disable-android --disable-caca --disable-cocoa --disable-coreaudio --disable-cuda-hwaccel --disable-libv4l2 --disable-opensles --disable-rsound --disable-rubberband --disable-uchardet --disable-vapoursynth --disable-vapoursynth-lazy --disable-vdpau --disable-mali-fbdev --disable-alsa --disable-gbm --disable-jack --enable-jpeg --disable-lcms2 --enable-libarchive --disable-libass --disable-libbluray --disable-cdda --disable-dvdnav --disable-dvdread --enable-drm --disable-lua --disable-gl --disable-pulse --disable-libsmbclient --enable-sdl2 --disable-rpi --enable-vaapi --enable-wayland --disable-x11 
Setting top to                           : /home/buildroot/build/instance-3/output/build/mpv-0.29.1 
Setting out to                           : /home/buildroot/build/instance-3/output/build/mpv-0.29.1/build 
Checking for waf version in 1.8.4-2.0.0  : ok 
Checking for program 'cc'                : /home/buildroot/build/instance-3/output/host/bin/i586-linux-gcc 
Checking for program 'pkg-config'        : /home/buildroot/build/instance-3/output/host/bin/pkg-config 
Checking for program 'ar'                : /home/buildroot/build/instance-3/output/host/bin/i586-linux-ar 
Checking for program 'rst2html'          : /usr/bin/rst2html 
Checking for program 'rst2man'           : /usr/bin/rst2man 
Checking for program 'rst2pdf'           : not found 
Checking for program 'windres'           : not found 
Checking for program 'perl'              : /usr/bin/perl 
Checking for 'gcc' (C compiler)          : /home/buildroot/build/instance-3/output/host/bin/i586-linux-gcc 
Detected target OS:                      : os-linux 
Checking for compiler flags -Werror=implicit-function-declaration : yes 
Checking for compiler flags -Wno-error=deprecated-declarations    : yes 
Checking for compiler flags -Wno-error=unused-function            : yes 
Checking for compiler flags -Wempty-body                          : yes 
Checking for compiler flags -Wdisabled-optimization               : yes 
Checking for compiler flags -Wstrict-prototypes                   : yes 
Checking for compiler flags -Wno-format-zero-length               : yes 
Checking for compiler flags -Werror=format-security               : yes 
Checking for compiler flags -Wno-redundant-decls                  : yes 
Checking for compiler flags -Wvla                                 : yes 
Checking for LGPL (version 2.1 or later) build                    : disabled 
Checking for GPL (version 2 or later) build                       : yes 
Checking for internal audio filter chain                          : yes 
Checking for mpv CLI player                                       : yes 
Checking for shared library                                       : disabled 
Checking for static library                                       : disabled 
Checking for static build                                         : disabled 
Checking for whether to include binary compile time               : yes 
Checking for whether to optimize                                  : yes 
Checking for whether to compile-in debugging information          : yes 
Checking for manpage generation                                   : yes 
Checking for html manual generation                               : disabled 
Checking for pdf manual generation                                : disabled 
Checking for dynamic loader                                       : yes 
Checking for C plugins                                            : yes 
Checking for zsh completion                                       : disabled 
Checking for inline assembly (currently without effect)           : yes 
Checking for test suite (using cmocka)                            : disabled 
Checking for generate a clang compilation database                : disabled 
Checking for compiler support for noexecstack                     : yes 
Checking for linker support for --nxcompat --no-seh --dynamicbase : no 
Checking for -lm                                                  : yes 
Checking for MinGW                                                : os-win32 not found 
Checking for POSIX environment                                    : yes 
Checking for Android environment                                  : disabled 
Checking for development environment                              : yes 
Checking for macOS Swift build tools                              : os-darwin not found 
Checking for Universal Windows Platform                           : disabled 
Checking for win32 desktop APIs                                   : os-win32 not found 
Checking for internal pthread wrapper for win32 (Vista+)          : posix found 
Checking for POSIX threads                                        : yes 
Checking for GNU C extensions                                     : yes 
Checking for stdatomic.h                                          : yes 
Checking for stdatomic.h support or slow emulation                : yes 
Checking for linking with -lrt                                    : yes 
Checking for iconv                                                : yes 
Checking for w32/dos paths                                        : os-win32 not found 
Checking for spawnp()/kill() POSIX support                        : yes 
Checking for spawnp()/kill() Android replacement                  : posix-spawn-native found 
Checking for any spawnp()/kill() support                          : yes 
Checking for Windows pipe support                                 : posix found 
Checking for glob() POSIX support                                 : yes 
Checking for glob() win32 replacement                             : posix found 
Checking for any glob() support                                   : yes 
Checking for fchmod()                                             : yes 
Checking for vt.h                                                 : yes 
Checking for gbm.h                                                : no 
Checking for GLIBC API for setting thread name                    : yes 
Checking for OSX API for setting thread name                      : glibc-thread-name found 
Checking for BSD API for setting thread name                      : glibc-thread-name found 
Checking for BSD's fstatfs()                                      : no 
Checking for Linux's fstatfs()                                    : yes 
Checking for Samba support (makes mpv GPLv3)                      : disabled 
Checking for Lua                                                  : disabled 
Checking for Javascript (MuJS backend)                            : no ('mujs >= 1.0.0' not found) 
Checking for SSA/ASS support                                      : disabled 
Checking for libass OSD support                                   : libass not found 
Checking for dummy OSD support                                    : yes 
Checking for zlib                                                 : yes 
Checking for Bluray support                                       : disabled 
Checking for dvdread support                                      : disabled 
Checking for dvdnav support                                       : disabled 
Checking for DVD/IFO support                                      : dvdread not found 
Checking for cdda support (libcdio)                               : disabled 
Checking for uchardet support                                     : disabled 
Checking for librubberband support                                : disabled 
Checking for LCMS2 support                                        : disabled 
Checking for VapourSynth filter bridge (Python)                   : disabled 
Checking for VapourSynth filter bridge (Lazy Lua)                 : disabled 
Checking for VapourSynth filter bridge (core)                     : vapoursynth not found 
Checking for libarchive wrapper for reading zip files and more    : yes 
Checking for SDL2                                                 : yes 
Checking for OSS                                                  : yes 
Checking for RSound audio output                                  : disabled 
Checking for sndio audio input/output                             : disabled 
Checking for PulseAudio audio output                              : disabled 
Checking for JACK audio output                                    : disabled 
Checking for OpenAL audio output                                  : disabled 
Checking for OpenSL ES audio output                               : disabled 
Checking for ALSA audio output                                    : disabled 
Checking for CoreAudio audio output                               : disabled 
Checking for AudioUnit output for iOS                             : no 
Checking for WASAPI audio output                                  : os-win32 not found 
Checking for Cocoa                                                : disabled 
Checking for DRM                                                  : yes 
Checking for DRM Prime ffmpeg support                             : yes 
Checking for GBM                                                  : disabled 
Checking for wayland-scanner                                      : yes 
Checking for wayland-protocols                                    : no ('wayland-protocols >= 1.14' not found) 
Checking for Wayland                                              : wayland-protocols not found 
You manually enabled the feature 'wayland', but the autodetection check failed.
package/pkg-generic.mk:228: recipe for target '/home/buildroot/build/instance-3/output/build/mpv-0.29.1/.stamp_configured' failed
make: *** [/home/buildroot/build/instance-3/output/build/mpv-0.29.1/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/build/instance-3/buildroot'