>>> libxo: Building testing/libxo 1.6.0-r0 (using abuild 3.10.0_rc1-r2) started Tue, 27 Sep 2022 18:37:04 +0000
>>> libxo: Checking sanity of /home/buildozer/aports/testing/libxo/APKBUILD...
>>> libxo: Analyzing dependencies...
>>> libxo: Installing for build: build-base bsd-compat-headers
(1/2) Installing bsd-compat-headers (0.7.2-r3)
(2/2) Installing .makedepends-libxo (20220927.183711)
OK: 298 MiB in 98 packages
>>> libxo: Cleaning up srcdir
>>> libxo: Cleaning up pkgdir
>>> libxo: Fetching https://github.com/Juniper/libxo/releases/download/1.6.0/libxo-1.6.0.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0

  0  690k    0  5695    0     0   3500      0  0:03:21  0:00:01  0:03:20  3500
100  690k  100  690k    0     0   313k      0  0:00:02  0:00:02 --:--:-- 1190k
>>> libxo: Fetching https://github.com/Juniper/libxo/releases/download/1.6.0/libxo-1.6.0.tar.gz
>>> libxo: Checking sha512sums...
libxo-1.6.0.tar.gz: OK
portability.patch: OK
>>> libxo: Unpacking /var/cache/distfiles/libxo-1.6.0.tar.gz...
>>> libxo: portability.patch
patching file libxo/xo_humanize.h
patching file libxo/xo_syslog.c
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a race-free mkdir -p... ./install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make supports nested variables... (cached) yes
checking for riscv64-alpine-linux-musl-gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether gcc accepts -g... yes
checking for gcc option to enable C11 features... none needed
checking whether gcc understands -c and -o together... yes
checking whether make supports the include directive... yes (GNU style)
checking dependency style of gcc... none
checking whether ln -s works... yes
checking build system type... Invalid configuration `riscv64-alpine-linux-musl': machine `riscv64-alpine' not recognized
configure: error: /bin/sh ./config.sub riscv64-alpine-linux-musl failed
>>> ERROR: libxo: build failed
>>> libxo: Uninstalling dependencies...
(1/2) Purging .makedepends-libxo (20220927.183711)
(2/2) Purging bsd-compat-headers (0.7.2-r3)
OK: 298 MiB in 96 packages