Applying ./patches/01_zscanner_tests.patch using plaintext: 
patching file tests/libzscanner/test_zscanner.in

Applying ./patches/02_knot.conf.patch using plaintext: 
patching file samples/knot.sample.conf.in
autoreconf: Entering directory `.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: /builder/shared-workdir/build/sdk/staging_dir/host/bin/aclocal -I /builder/shared-workdir/build/sdk/staging_dir/target-powerpc_8540_musl/host/share/aclocal -I /builder/shared-workdir/build/sdk/staging_dir/hostpkg/share/aclocal -I /builder/shared-workdir/build/sdk/staging_dir/target-powerpc_8540_musl/usr/share/aclocal -I m4 -I . --force -I m4
autoreconf: configure.ac: tracing
autoreconf: running: /builder/shared-workdir/build/sdk/staging_dir/host/bin/libtoolize --install --force
OpenWrt-libtoolize: putting auxiliary files in `.'.
OpenWrt-libtoolize: linking file `./config.guess'
OpenWrt-libtoolize: linking file `./config.sub'
OpenWrt-libtoolize: linking file `./install-sh'
OpenWrt-libtoolize: linking file `./ltmain.sh'
OpenWrt-libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'.
OpenWrt-libtoolize: linking file `m4/libtool.m4'
OpenWrt-libtoolize: You should add the contents of `m4/libtool.m4' to `aclocal.m4'.
OpenWrt-libtoolize: linking file `m4/ltoptions.m4'
OpenWrt-libtoolize: You should add the contents of `m4/ltoptions.m4' to `aclocal.m4'.
OpenWrt-libtoolize: linking file `m4/ltsugar.m4'
OpenWrt-libtoolize: You should add the contents of `m4/ltsugar.m4' to `aclocal.m4'.
OpenWrt-libtoolize: linking file `m4/ltversion.m4'
OpenWrt-libtoolize: linking file `m4/lt~obsolete.m4'
OpenWrt-libtoolize: You should add the contents of `m4/lt~obsolete.m4' to `aclocal.m4'.
autoreconf: running: /builder/shared-workdir/build/sdk/staging_dir/host/bin/autoconf --include=/builder/shared-workdir/build/sdk/staging_dir/target-powerpc_8540_musl/host/share/aclocal --include=/builder/shared-workdir/build/sdk/staging_dir/hostpkg/share/aclocal --include=/builder/shared-workdir/build/sdk/staging_dir/target-powerpc_8540_musl/usr/share/aclocal --include=m4 --include=. --prepend-include=/builder/shared-workdir/build/sdk/staging_dir/host/share/aclocal --force
autoreconf: running: /builder/shared-workdir/build/sdk/staging_dir/host/bin/autoheader --include=/builder/shared-workdir/build/sdk/staging_dir/target-powerpc_8540_musl/host/share/aclocal --include=/builder/shared-workdir/build/sdk/staging_dir/hostpkg/share/aclocal --include=/builder/shared-workdir/build/sdk/staging_dir/target-powerpc_8540_musl/usr/share/aclocal --include=m4 --include=. --prepend-include=/builder/shared-workdir/build/sdk/staging_dir/host/share/aclocal --force
autoreconf: running: /builder/shared-workdir/build/sdk/staging_dir/host/bin/automake --add-missing --force-missing
autoreconf: Leaving directory `.'
configure: WARNING: unrecognized options: --disable-nls
configure: loading site script /builder/shared-workdir/build/sdk/include/site/powerpc
checking for a BSD-compatible install... /builder/shared-workdir/build/sdk/staging_dir/host/bin/install -c
checking whether build environment is sane... yes
checking for powerpc-openwrt-linux-strip... powerpc-openwrt-linux-musl-strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make supports nested variables... (cached) yes
checking for style of include used by make... GNU
checking for powerpc-openwrt-linux-gcc... powerpc-openwrt-linux-musl-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... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether powerpc-openwrt-linux-musl-gcc accepts -g... yes
checking for powerpc-openwrt-linux-musl-gcc option to accept ISO C89... none needed
checking whether powerpc-openwrt-linux-musl-gcc understands -c and -o together... yes
checking dependency style of powerpc-openwrt-linux-musl-gcc... gcc3
checking how to run the C preprocessor... powerpc-openwrt-linux-musl-gcc -E
checking for grep that handles long lines and -e... /builder/shared-workdir/build/sdk/staging_dir/host/bin/grep
checking for egrep... /builder/shared-workdir/build/sdk/staging_dir/host/bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking build system type... x86_64-pc-linux-gnu
checking host system type... powerpc-openwrt-linux-gnu
checking for a sed that does not truncate output... /builder/shared-workdir/build/sdk/staging_dir/host/bin/sed
checking for powerpc-openwrt-linux-musl-gcc option to accept ISO C99... none needed
checking whether C compiler accepts "-fpredictive-commoning"... no
checking whether the linker accepts "-Wl,--exclude-libs,ALL"... yes
checking whether byte ordering is bigendian... (cached) yes
checking for powerpc-openwrt-linux-ar... powerpc-openwrt-linux-musl-gcc-ar
checking the archiver (powerpc-openwrt-linux-musl-gcc-ar) interface... ar
checking how to print strings... printf
checking for a sed that does not truncate output... (cached) /builder/shared-workdir/build/sdk/staging_dir/host/bin/sed
checking for fgrep... /builder/shared-workdir/build/sdk/staging_dir/host/bin/grep -F
checking for ld used by powerpc-openwrt-linux-musl-gcc... powerpc-openwrt-linux-musl-ld
checking if the linker (powerpc-openwrt-linux-musl-ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... powerpc-openwrt-linux-musl-gcc-nm
checking the name lister (powerpc-openwrt-linux-musl-gcc-nm) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking how to convert x86_64-pc-linux-gnu file names to powerpc-openwrt-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
checking for powerpc-openwrt-linux-musl-ld option to reload object files... -r
checking for powerpc-openwrt-linux-objdump... powerpc-openwrt-linux-musl-objdump
checking how to recognize dependent libraries... pass_all
checking for powerpc-openwrt-linux-dlltool... no
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for powerpc-openwrt-linux-ar... (cached) powerpc-openwrt-linux-musl-gcc-ar
checking for archiver @FILE support... @
checking for powerpc-openwrt-linux-strip... (cached) powerpc-openwrt-linux-musl-strip
checking for powerpc-openwrt-linux-ranlib... powerpc-openwrt-linux-musl-gcc-ranlib
checking command to parse powerpc-openwrt-linux-musl-gcc-nm output from powerpc-openwrt-linux-musl-gcc object... ok
checking for sysroot... no
checking for powerpc-openwrt-linux-mt... no
checking for mt... no
checking if : is a manifest tool... no
checking for dlfcn.h... yes
checking for objdir... .libs
checking if powerpc-openwrt-linux-musl-gcc supports -fno-rtti -fno-exceptions... no
checking for powerpc-openwrt-linux-musl-gcc option to produce PIC... -fPIC -DPIC
checking if powerpc-openwrt-linux-musl-gcc PIC flag -fPIC -DPIC works... yes
checking if powerpc-openwrt-linux-musl-gcc static flag -static works... yes
checking if powerpc-openwrt-linux-musl-gcc supports -c -o file.o... yes
checking if powerpc-openwrt-linux-musl-gcc supports -c -o file.o... (cached) yes
checking whether the powerpc-openwrt-linux-musl-gcc linker (powerpc-openwrt-linux-musl-ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking pkg-config is at least version 0.9.0... yes
checking for gnutls... no
configure: error: Package requirements (gnutls >= 3.3) were not met:

Package 'gnutls', required by 'virtual:world', not found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables gnutls_CFLAGS
and gnutls_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
make[3]: *** [Makefile:268: /builder/shared-workdir/build/sdk/build_dir/target-powerpc_8540_musl/knot-3.1.8/.configured_68b329da9893e34099c7d8ad5cb9c940] Error 1
time: package/feeds/packages/knot/compile#22.98#2.42#38.98