* Package:    net-dns/pdns-recursor-4.3.0-r1
 * Repository: gentoo
 * Maintainer: swegener@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_musl kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking pdns-recursor-4.3.0.tar.bz2 to /var/tmp/portage/net-dns/pdns-recursor-4.3.0-r1/work
>>> Source unpacked in /var/tmp/portage/net-dns/pdns-recursor-4.3.0-r1/work
>>> Preparing source in /var/tmp/portage/net-dns/pdns-recursor-4.3.0-r1/work/pdns-recursor-4.3.0 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/net-dns/pdns-recursor-4.3.0-r1/work/pdns-recursor-4.3.0 ...
 * econf: updating pdns-recursor-4.3.0/build-aux/config.guess with /usr/share/gnuconfig/config.guess
 * econf: updating pdns-recursor-4.3.0/build-aux/config.sub with /usr/share/gnuconfig/config.sub
./configure --prefix=/usr --build=x86_64-gentoo-linux-musl --host=x86_64-gentoo-linux-musl --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-dependency-tracking --disable-silent-rules --docdir=/usr/share/doc/pdns-recursor-4.3.0-r1 --htmldir=/usr/share/doc/pdns-recursor-4.3.0-r1/html --with-sysroot=/ --libdir=/usr/lib --sysconfdir=/etc/powerdns --with-lua=lua --disable-verbose-logging --disable-systemd --without-libsodium --without-protobuf --without-net-snmp
checking for a BSD-compatible install... /usr/lib/portage/python3.6/ebuild-helpers/xattr/install -c
checking whether build environment is sane... yes
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checking if the linker (/usr/x86_64-gentoo-linux-musl/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/x86_64-gentoo-linux-musl-nm -B
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checking whether ln -s works... yes
checking the maximum length of command line arguments... 98304
checking how to convert x86_64-gentoo-linux-musl file names to x86_64-gentoo-linux-musl format... func_convert_file_noop
checking how to convert x86_64-gentoo-linux-musl file names to toolchain format... func_convert_file_noop
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checking whether the x86_64-gentoo-linux-musl-g++ linker (/usr/x86_64-gentoo-linux-musl/bin/ld -m elf_x86_64) supports shared libraries... yes
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checking for the flags needed to use pthreads... conftest.cpp: In function 'int main()':
conftest.cpp:41:27: warning: 'th' is used uninitialized in this function [-Wuninitialized]
   41 | pthread_t th; pthread_join(th, 0);
      |               ~~~~~~~~~~~~^~~~~~~
-pthread
checking for the toolset name used by Boost for x86_64-gentoo-linux-musl-g++... configure: WARNING: could not figure out which toolset name to use for x86_64-gentoo-linux-musl-g++

checking boost/system/error_code.hpp usability... yes
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checking what context library to use for MTasker... configure: error: neither boost::context nor System V ucontexts available

!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/net-dns/pdns-recursor-4.3.0-r1/work/pdns-recursor-4.3.0/config.log
 * ERROR: net-dns/pdns-recursor-4.3.0-r1::gentoo failed (configure phase):
 *   econf failed
 * 
 * Call stack:
 *               ebuild.sh, line  125:  Called src_configure
 *             environment, line 1536:  Called econf '--sysconfdir=/etc/powerdns' '--with-lua=lua' '--disable-verbose-logging' '--disable-systemd' '--without-libsodium' '--without-protobuf' '--without-net-snmp'
 *        phase-helpers.sh, line  681:  Called __helpers_die 'econf failed'
 *   isolated-functions.sh, line  112:  Called die
 * The specific snippet of code:
 *   		die "$@"
 * 
 * If you need support, post the output of `emerge --info '=net-dns/pdns-recursor-4.3.0-r1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=net-dns/pdns-recursor-4.3.0-r1::gentoo'`.
 * The complete build log is located at '/var/log/portage/net-dns:pdns-recursor-4.3.0-r1:20200321-022421.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/net-dns/pdns-recursor-4.3.0-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/net-dns/pdns-recursor-4.3.0-r1/temp/environment'.
 * Working directory: '/var/tmp/portage/net-dns/pdns-recursor-4.3.0-r1/work/pdns-recursor-4.3.0'
 * S: '/var/tmp/portage/net-dns/pdns-recursor-4.3.0-r1/work/pdns-recursor-4.3.0'