>>> host-riscv-isa-sim 1.1.0 Extracting
gzip -d -c /home/buildroot/autobuild/instance-2/dl/riscv-isa-sim/riscv-isa-sim-1.1.0.tar.gz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-2/output-1/build/host-riscv-isa-sim-1.1.0   -xf -
>>> host-riscv-isa-sim 1.1.0 Patching

Applying 0001-riscv-disable-precompiled-headers.patch using patch: 
patching file riscv/riscv.mk.in
>>> host-riscv-isa-sim 1.1.0 Updating config.sub and config.guess
for file in config.guess config.sub; do for i in $(find /home/buildroot/autobuild/instance-2/output-1/build/host-riscv-isa-sim-1.1.0 -name $file); do cp support/gnuconfig/$file $i; done; done
>>> host-riscv-isa-sim 1.1.0 Patching libtool
>>> host-riscv-isa-sim 1.1.0 Configuring
(cd /home/buildroot/autobuild/instance-2/output-1/build/host-riscv-isa-sim-1.1.0/ && rm -rf config.cache; PATH="/home/buildroot/autobuild/instance-2/output-1/host/bin:/home/buildroot/autobuild/instance-2/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" PKG_CONFIG="/home/buildroot/autobuild/instance-2/output-1/host/bin/pkg-config" PKG_CONFIG_SYSROOT_DIR="/" PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_LIBDIR="/home/buildroot/autobuild/instance-2/output-1/host/lib/pkgconfig:/home/buildroot/autobuild/instance-2/output-1/host/share/pkgconfig" AR="/usr/bin/ar" AS="/usr/bin/as" LD="/usr/bin/ld" NM="/usr/bin/nm" CC="/usr/bin/gcc" GCC="/usr/bin/gcc" CXX="/usr/bin/g++" CPP="/usr/bin/cpp" OBJCOPY="/usr/bin/objcopy" RANLIB="/usr/bin/ranlib" CPPFLAGS="-I/home/buildroot/autobuild/instance-2/output-1/host/include" CFLAGS="-O2 -I/home/buildroot/autobuild/instance-2/output-1/host/include" CXXFLAGS="-O2 -I/home/buildroot/autobuild/instance-2/output-1/host/include" LDFLAGS="-L/home/buildroot/autobuild/instance-2/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-2/output-1/host/lib" INTLTOOL_PERL=/usr/bin/perl CFLAGS="-O2 -I/home/buildroot/autobuild/instance-2/output-1/host/include" LDFLAGS="-L/home/buildroot/autobuild/instance-2/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-2/output-1/host/lib"  CONFIG_SITE=/dev/null ./configure --prefix="/home/buildroot/autobuild/instance-2/output-1/host" --sysconfdir="/home/buildroot/autobuild/instance-2/output-1/host/etc" --localstatedir="/home/buildroot/autobuild/instance-2/output-1/host/var" --enable-shared --disable-static --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --disable-debug --with-xmlto=no --with-fop=no --disable-nls --disable-dependency-tracking   )
configure: WARNING: unrecognized options: --enable-shared, --disable-static, --disable-gtk-doc, --disable-gtk-doc-html, --disable-doc, --disable-docs, --disable-documentation, --disable-debug, --with-xmlto, --with-fop, --disable-nls, --disable-dependency-tracking
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for gcc... /usr/bin/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 we are using the GNU C compiler... yes
checking whether /usr/bin/gcc accepts -g... yes
checking for /usr/bin/gcc option to accept ISO C89... none needed
checking whether we are using the GNU C++ compiler... yes
checking whether /usr/bin/g++ accepts -g... yes
checking for ar... /usr/bin/ar
checking for ranlib... /usr/bin/ranlib
checking for dtc... /home/buildroot/autobuild/instance-2/output-1/host/bin/dtc
checking how to run the C++ preprocessor... /usr/bin/g++ -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /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 whether byte ordering is bigendian... no
checking for a BSD-compatible install... /usr/bin/install -c
checking for ANSI C header files... (cached) yes
checking for __int128_t... yes
checking whether the linker accepts -Wl,--export-dynamic... yes
checking whether C++ compiler accepts -relocatable-pch... no
configure: configuring default subproject : fesvr
checking for pthread_create in -lpthread... yes
checking for struct statx.stx_ino... no
checking for struct statx.stx_mnt_id... no
configure: configuring default subproject : riscv
checking for boostlib >= 1.53 (105300)... yes
checking whether the Boost::ASIO library is available... yes
configure: error: Could not find a version of the Boost::Asio library!
package/pkg-generic.mk:273: recipe for target '/home/buildroot/autobuild/instance-2/output-1/build/host-riscv-isa-sim-1.1.0/.stamp_configured' failed
make: *** [/home/buildroot/autobuild/instance-2/output-1/build/host-riscv-isa-sim-1.1.0/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/autobuild/instance-2/buildroot'