% $CXX -v tests/hello.cpp
Using built-in specs.
COLLECT_GCC=riscv64-yoe-linux-g++
COLLECT_LTO_WRAPPER=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/libexec/riscv64-yoe-linux/gcc/riscv64-yoe-linux/8.2.0/lto-wrapper
Target: riscv64-yoe-linux
Configured with: ../../../../../../work-shared/gcc-8.2.0-r0/gcc-8.2.0/configure --build=x86_64-linux --host=x86_64-yoesdk-linux --target=riscv64-yoe-linux --prefix=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr --exec_prefix=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr --bindir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/bin/riscv64-yoe-linux --sbindir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/bin/riscv64-yoe-linux --libexecdir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/libexec/riscv64-yoe-linux --datadir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/share --sysconfdir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/etc --sharedstatedir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/com --localstatedir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/var --libdir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/lib/riscv64-yoe-linux --includedir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/include --oldincludedir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/include --infodir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/share/info --mandir=/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/share/man --disable-silent-rules --disable-dependency-tracking --with-libtool-sysroot=/mnt/a/yoe/build/tmp/work/x86_64-nativesdk-yoesdk-linux/gcc-cross-canadian-riscv64/8.2.0-r0/recipe-sysroot --with-gnu-ld --enable-shared --enable-languages=c,c++ --enable-threads=posix --enable-multilib --enable-c99 --enable-long-long --enable-symvers=gnu --enable-libstdcxx-pch --program-prefix=riscv64-yoe-linux- --without-local-prefix --enable-lto --disable-libssp --enable-libitm --disable-bootstrap --disable-libmudflap --with-system-zlib --with-linker-hash-style=gnu --enable-linker-build-id --with-ppl=no --with-cloog=no --enable-checking=release --enable-cheaders=c_global --without-isl --with-gxx-include-dir=/not/exist/usr/include/c++/8.2.0 --with-build-time-tools=/mnt/a/yoe/build/tmp/work/x86_64-nativesdk-yoesdk-linux/gcc-cross-canadian-riscv64/8.2.0-r0/recipe-sysroot-native/usr/riscv64-yoe-linux/bin --with-sysroot=/not/exist --with-build-sysroot=/mnt/a/yoe/build/tmp/work/x86_64-nativesdk-yoesdk-linux/gcc-cross-canadian-riscv64/8.2.0-r0/recipe-sysroot --without-long-double-128 libgcc_cv_powerpc_float128=no --enable-poison-system-directories --disable-static --enable-nls --with-glibc-version=2.28 --enable-initfini-array --enable-__cxa_atexit
Thread model: posix
gcc version 8.2.0 (GCC)
COLLECT_GCC_OPTIONS='--sysroot=/opt/yoe/2.6/sysroots/riscv64-yoe-linux' '-v' '-shared-libgcc' '-march=rv64gc' '-mabi=lp64d'
 /opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/libexec/riscv64-yoe-linux/gcc/riscv64-yoe-linux/8.2.0/cc1plus -quiet -v -imultilib lib64/lp64d -isysroot /opt/yoe/2.6/sysroots/riscv64-yoe-linux -D_GNU_SOURCE tests/hello.cpp -quiet -dumpbase hello.cpp -march=rv64gc -mabi=lp64d -auxbase hello -version -o /tmp/ccoOxdFt.s
GNU C++14 (GCC) version 8.2.0 (riscv64-yoe-linux)
	compiled by GNU C version 8.2.0, GMP version 6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version none
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/opt/yoe/2.6/sysroots/riscv64-yoe-linux/usr/include/c++/8.2.0/riscv64-yoe-linux/lib64/lp64d"
ignoring nonexistent directory "/opt/yoe/2.6/sysroots/riscv64-yoe-linux/usr/lib/gcc/riscv64-yoe-linux/8.2.0/include"
ignoring nonexistent directory "/opt/yoe/2.6/sysroots/riscv64-yoe-linux/usr/local/include"
ignoring nonexistent directory "/opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/lib/riscv64-yoe-linux/gcc/riscv64-yoe-linux/8.2.0/../../../../../riscv64-yoe-linux/include"
#include "..." search starts here:
#include <...> search starts here:
 /opt/yoe/2.6/sysroots/riscv64-yoe-linux/usr/include/c++/8.2.0
 /opt/yoe/2.6/sysroots/riscv64-yoe-linux/usr/include/c++/8.2.0/backward
 /opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/lib/riscv64-yoe-linux/gcc/riscv64-yoe-linux/8.2.0/include
 /opt/yoe/2.6/sysroots/x86_64-yoesdk-linux/usr/lib/riscv64-yoe-linux/gcc/riscv64-yoe-linux/8.2.0/include-fixed
 /opt/yoe/2.6/sysroots/riscv64-yoe-linux/usr/include/
End of search list.
GNU C++14 (GCC) version 8.2.0 (riscv64-yoe-linux)
	compiled by GNU C version 8.2.0, GMP version 6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version none
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: d01ccea76bfa4a122a26bd92cec57bed
In file included from tests/hello.cpp:1:
/opt/yoe/2.6/sysroots/riscv64-yoe-linux/usr/include/c++/8.2.0/iostream:38:10: fatal error: bits/c++config.h: No such file or directory
 #include <bits/c++config.h>
          ^~~~~~~~~~~~~~~~~~
compilation terminated.