请大佬看看配置riscv-isa-sim为何无法成功

randolpha

如何解决?谢谢.
work@work-eda:~/riscv-tools/riscv-isa-sim/build$ ../configure --prefix=/opt/riscv --host=riscv64-unknown-elf
checking build system type... x86_64-pc-linux-gnu
checking host system type... riscv64-unknown-elf
checking for riscv64-unknown-elf-gcc... riscv64-unknown-elf-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 riscv64-unknown-elf-gcc accepts -g... yes
checking for riscv64-unknown-elf-gcc option to accept ISO C89... none needed
checking for riscv64-unknown-elf-g++... riscv64-unknown-elf-g++
checking whether we are using the GNU C++ compiler... yes
checking whether riscv64-unknown-elf-g++ accepts -g... yes
checking for riscv64-unknown-elf-ar... riscv64-unknown-elf-ar
checking for riscv64-unknown-elf-ranlib... riscv64-unknown-elf-ranlib
checking for dtc... /usr/bin/dtc
checking how to run the C++ preprocessor... riscv64-unknown-elf-g++ -E
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/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
configure: configuring default subproject : fesvr
checking for pthread_create in -lpthread... no
configure: error: libpthread is required

arthur_wo

遇到同样的问题，LZ解决没有？方便解答一下吗？是不是riscv tool chains版本太低？