>>> pulseaudio 16.1 Extracting
xzcat /home/buildroot/instance-0/dl/pulseaudio/pulseaudio-16.1.tar.xz | tar --strip-components=1 -C /home/buildroot/instance-0/output-1/build/pulseaudio-16.1   -xf -
>>> pulseaudio 16.1 Patching

Applying 0001-shm.c-use-_Static_assert-instead-of-static_assert-fo.patch using patch: 
patching file src/pulsecore/shm.c

Applying 0002-build-sys-Fix-atomic-support-detection.patch using patch: 
patching file meson.build

Applying 0003-build-sys-Add-missing-libatomic_ops-dependencies.patch using patch: 
patching file src/meson.build
patching file src/modules/meson.build
Hunk #3 succeeded at 238 (offset -5 lines).
patching file src/pulse/meson.build
patching file src/pulsecore/meson.build

Applying 0004-meson.build-fix-build-without-C.patch using patch: 
patching file meson.build
patching file src/modules/echo-cancel/meson.build
>>> pulseaudio 16.1 Configuring
rm -rf /home/buildroot/instance-0/output-1/build/pulseaudio-16.1//build
mkdir -p /home/buildroot/instance-0/output-1/build/pulseaudio-16.1//build
sed -e "/^\[binaries\]$/s:$::" -e "/^\[properties\]$/s:$::"         -e "s%@TARGET_CC@%/home/buildroot/instance-0/output-1/host/bin/aarch64-linux-gcc%g" -e "s%@TARGET_CXX@%/home/buildroot/instance-0/output-1/host/bin/aarch64-linux-g++%g" -e "s%@TARGET_AR@%/home/buildroot/instance-0/output-1/host/bin/aarch64-linux-gcc-ar%g" -e "s%@TARGET_FC@%/home/buildroot/instance-0/output-1/host/bin/aarch64-linux-gfortran%g" -e "s%@TARGET_STRIP@%/home/buildroot/instance-0/output-1/host/bin/aarch64-linux-strip%g" -e "s%@TARGET_ARCH@%aarch64%g" -e "s%@TARGET_CPU@%cortex-a53%g" -e "s%@TARGET_ENDIAN@%little%g" -e "s%@TARGET_FCFLAGS@%%g" -e "s%@TARGET_CFLAGS@%'-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-O2', '-g0', '-D_FORTIFY_SOURCE=1'%g" -e "s%@TARGET_LDFLAGS@%%g" -e "s%@TARGET_CXXFLAGS@%'-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-O2', '-g0', '-D_FORTIFY_SOURCE=1'%g" -e "s%@BR2_CMAKE@%/home/buildroot/instance-0/output-1/host/bin/cmake%g" -e "s%@PKGCONF_HOST_BINARY@%/home/buildroot/instance-0/output-1/host/bin/pkgconf%g" -e "s%@HOST_DIR@%/home/buildroot/instance-0/output-1/host%g" -e "s%@STAGING_DIR@%/home/buildroot/instance-0/output-1/host/aarch64-buildroot-linux-gnu/sysroot%g" -e "s%@STATIC@%false%g" /home/buildroot/instance-0/buildroot/support/misc/cross-compilation.conf.in > /home/buildroot/instance-0/output-1/build/pulseaudio-16.1//build/cross-compilation.conf
PATH="/home/buildroot/instance-0/output-1/host/bin:/home/buildroot/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" CC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++"  PYTHONNOUSERSITE=y /home/buildroot/instance-0/output-1/host/bin/meson setup --prefix=/usr --libdir=lib --default-library=shared --buildtype=release --cross-file=/home/buildroot/instance-0/output-1/build/pulseaudio-16.1//build/cross-compilation.conf -Db_pie=false -Db_staticpic=true -Dstrip=false -Dbuild.pkg_config_path=/home/buildroot/instance-0/output-1/host/lib/pkgconfig -Dbuild.cmake_prefix_path=/home/buildroot/instance-0/output-1/host/lib/cmake -Ddoxygen=false -Dlegacy-database-entry-format=false -Dman=false -Drunning-from-build-tree=false -Dtests=false -Davahi=disabled -Ddbus=enabled -Dfftw=disabled -Dsamplerate=disabled -Ddatabase=simple -Djack=disabled -Dlirc=disabled -Dopenssl=enabled -Dorc=disabled -Dgtk=disabled -Dsoxr=disabled -Dbluez5=disabled -Dudev=disabled -Dwebrtc-aec=enabled -Dalsa=enabled -Dx11=disabled -Dspeex=disabled -Dsystemd=disabled -Dvalgrind=enabled /home/buildroot/instance-0/output-1/build/pulseaudio-16.1/ /home/buildroot/instance-0/output-1/build/pulseaudio-16.1//build
The Meson build system
Version: 1.3.1
Source dir: /home/buildroot/instance-0/output-1/build/pulseaudio-16.1
Build dir: /home/buildroot/instance-0/output-1/build/pulseaudio-16.1/build
Build type: cross build
Program git-version-gen found: YES (/home/buildroot/instance-0/output-1/build/pulseaudio-16.1/git-version-gen)
WARNING: You should add the boolean check kwarg to the run_command call.
         It currently defaults to false,
         but it will default to true in future releases of meson.
         See also: https://github.com/mesonbuild/meson/issues/9300
Project name: pulseaudio
Project version: 16.1
C compiler for the host machine: /home/buildroot/instance-0/output-1/host/bin/aarch64-linux-gcc (gcc 12.3.0 "aarch64-linux-gcc.br_real (Buildroot 2021.11-10014-g6257e8c) 12.3.0")
C linker for the host machine: /home/buildroot/instance-0/output-1/host/bin/aarch64-linux-gcc ld.bfd 2.40
C compiler for the build machine: /usr/bin/gcc (gcc 10.2.1 "gcc (Debian 10.2.1-6) 10.2.1 20210110")
C linker for the build machine: /usr/bin/gcc ld.bfd 2.35.2
Build machine cpu family: x86_64
Build machine cpu: x86_64
Host machine cpu family: aarch64
Host machine cpu: cortex-a53
Target machine cpu family: aarch64
Target machine cpu: cortex-a53
Found pkg-config: YES (/home/buildroot/instance-0/output-1/host/bin/pkgconf) 1.6.3
Found CMake: /home/buildroot/instance-0/output-1/host/bin/cmake (3.28.1)
Run-time dependency bash-completion found: NO (tried pkgconfig and cmake)
Checking for type "_Bool" : YES 
Checking for size of "void *" : 8 
Has header "arpa/inet.h" : YES 
Has header "byteswap.h" : YES 
Has header "dlfcn.h" : YES 
Has header "execinfo.h" : YES 
Has header "grp.h" : YES 
Has header "langinfo.h" : YES 
Has header "linux/sockios.h" : YES 
Has header "locale.h" : YES 
Has header "netdb.h" : YES 
Has header "netinet/in.h" : YES 
Has header "netinet/in_systm.h" : YES 
Has header "netinet/ip.h" : YES 
Has header "netinet/tcp.h" : YES 
Has header "pcreposix.h" : YES 
Has header "poll.h" : YES 
Has header "pwd.h" : YES 
Has header "regex.h" : YES 
Has header "sched.h" : YES 
Has header "stdint.h" : YES 
Has header "sys/atomic.h" : NO 
Has header "sys/capability.h" : YES 
Has header "sys/conf.h" : NO 
Has header "sys/dl.h" : NO 
Has header "sys/eventfd.h" : YES 
Has header "sys/filio.h" : NO 
Has header "sys/ioctl.h" : YES 
Has header "sys/mman.h" : YES 
Has header "sys/prctl.h" : YES 
Has header "sys/resource.h" : YES 
Has header "sys/select.h" : YES 
Has header "sys/socket.h" : YES 
Has header "sys/syscall.h" : YES 
Has header "sys/uio.h" : YES 
Has header "sys/un.h" : YES 
Has header "sys/wait.h" : YES 
Has header "syslog.h" : YES 
Has header "xlocale.h" : NO 
Has header "valgrind/memcheck.h" : YES 
Has header "pthread.h" : YES 
Header "pthread.h" has symbol "PTHREAD_PRIO_INHERIT" : YES 
Check usable header "cpuid.h" : NO 
Checking for function "accept4" : YES 
Checking for function "clock_gettime" : YES 
Checking for function "ctime_r" : YES 
Checking for function "fchmod" : YES 
Checking for function "fchown" : YES 
Checking for function "fork" : YES 
Checking for function "fstat" : YES 
Checking for function "getaddrinfo" : YES 
Checking for function "getgrgid_r" : YES 
Checking for function "getgrnam_r" : YES 
Checking for function "getpwnam_r" : YES 
Checking for function "getpwuid_r" : YES 
Checking for function "gettimeofday" : YES 
Checking for function "getuid" : YES 
Checking for function "lrintf" : YES 
Checking for function "lstat" : YES 
Checking for function "memfd_create" : YES 
Checking for function "mkfifo" : YES 
Checking for function "mlock" : YES 
Checking for function "nanosleep" : YES 
Checking for function "open64" : YES 
Checking for function "paccept" : NO 
Checking for function "pipe" : YES 
Checking for function "pipe2" : YES 
Checking for function "posix_fadvise" : YES 
Checking for function "posix_madvise" : YES 
Checking for function "posix_memalign" : YES 
Checking for function "ppoll" : YES 
Checking for function "readlink" : YES 
Checking for function "setegid" : YES 
Checking for function "seteuid" : YES 
Checking for function "setpgid" : YES 
Checking for function "setregid" : YES 
Checking for function "setresgid" : YES 
Checking for function "setresuid" : YES 
Checking for function "setreuid" : YES 
Checking for function "setsid" : YES 
Checking for function "sig2str" : NO 
Checking for function "sigaction" : YES 
Checking for function "strerror_r" : YES 
Checking for function "strtod_l" : YES 
Checking for function "strtof" : YES 
Checking for function "symlink" : YES 
Checking for function "sysconf" : YES 
Checking for function "uname" : YES 
Header "sys/syscall.h" has symbol "SYS_memfd_create" : YES 
Checking for function "dgettext" : YES 
Header "signal.h" has symbol "SIGXCPU" : YES 
Header "netinet/in.h" has symbol "INADDR_NONE" : YES 
Header "unistd.h" has symbol "environ" : YES 
Header "sys/soundcard.h" has symbol "SOUND_PCM_READ_RATE" : YES 
Header "sys/soundcard.h" has symbol "SOUND_PCM_READ_CHANNELS" : YES 
Header "sys/soundcard.h" has symbol "SOUND_PCM_READ_BITS" : YES 
Library m found: YES
Run-time dependency threads found: YES
Checking for function "pthread_getname_np" with dependency threads: YES 
Checking for function "pthread_setaffinity_np" with dependency threads: YES 
Checking for function "pthread_setname_np" with dependency threads: YES 
Library cap found: YES
Library rt found: YES
Checking for function "shm_open" with dependency -lrt: YES 
Library dl found: YES
Checking for function "dladdr" with dependency -ldl: YES 
Checking for function "iconv_open" : YES 
Library execinfo found: NO
Run-time dependency dbus-1 found: YES 1.14.10
Run-time dependency glib-2.0 found: YES 2.76.1
Run-time dependency sndfile found: YES 1.2.2
Dependency libsystemd skipped: feature systemd disabled
Dependency x11-xcb skipped: feature x11 disabled
Has header "sys/soundcard.h" : YES 
Dependency fftw3f skipped: feature fftw disabled
Run-time dependency libasyncns found: NO (tried pkgconfig and cmake)
Dependency gtk+-3.0 skipped: feature gtk disabled
Library ltdl found: YES
Run-time dependency alsa found: YES 1.2.11
Run-time dependency gio-2.0 found: YES 2.76.1
Dependency orc-0.4 skipped: feature orc disabled
Program orcc skipped: feature orc disabled
Dependency samplerate skipped: feature samplerate disabled
Dependency speexdsp skipped: feature speex disabled
Dependency soxr skipped: feature soxr disabled
Run-time dependency webrtc-audio-processing found: NO (tried pkgconfig and cmake)

../output-1/build/pulseaudio-16.1/meson.build:723:15: ERROR: Dependency "webrtc-audio-processing" not found, tried pkgconfig and cmake

A full log can be found at /home/buildroot/instance-0/output-1/build/pulseaudio-16.1/build/meson-logs/meson-log.txt
make: *** [package/pkg-generic.mk:273: /home/buildroot/instance-0/output-1/build/pulseaudio-16.1/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/instance-0/buildroot'