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编译报错
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1.关于你要提交的问题
按照README编译命令执行到第4步的make V=s -j1报错 Q：是否搜索了issue (使用 "x" 选择)
- [ ] 没有类似的issue
2. 详细叙述
(1) 具体问题
编译环境ubuntu2020 lts, 4核心， 24G RAM, 500G硬盘 ERROR: toolchain/gcc/initial failed to build A：
(2) 路由器型号和固件版本
master分支默认 A：
(3) 详细日志
报错部分日志如下：
cc1-checksum.o libbackend.a main.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a ../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a -L/home/zf/linux/Source/lede/staging_dir/host/lib -L/home/zf/linux/Source/lede/staging_dir/host/lib -L/home/zf/linux/Source/lede/staging_dir/host/lib -lmpc -lmpfr -lgmp -rdynamic -ldl -L./../zlib -lz -lzstd
/usr/bin/ld: /home/zf/linux/Source/lede/staging_dir/host/lib/libzstd.a(......lib_common_pool.c.o): in function POOL_free.part.0': pool.c:(.text+0x16f): undefined reference to pthread_join'
/usr/bin/ld: /home/zf/linux/Source/lede/staging_dir/host/lib/libzstd.a(......lib_common_pool.c.o): in function POOL_create_advanced': pool.c:(.text+0x333): undefined reference to pthread_create'
/usr/bin/ld: /home/zf/linux/Source/lede/staging_dir/host/lib/libzstd.a(......_lib_common_pool.c.o): in function POOL_resize': pool.c:(.text+0x599): undefined reference to pthread_create'
collect2: error: ld returned 1 exit status
make[5]: *** [/home/zf/linux/Source/lede/build_dir/toolchain-x86_64_gcc-11.3.0_musl/gcc-11.3.0/gcc/c/Make-lang.in:87: cc1] Error 1
make[5]: Leaving directory '/home/zf/linux/Source/lede/build_dir/toolchain-x86_64_gcc-11.3.0_musl/gcc-11.3.0-initial/gcc'
make[4]: *** [Makefile:4428: all-gcc] Error 2
make[4]: Leaving directory '/home/zf/linux/Source/lede/build_dir/toolchain-x86_64_gcc-11.3.0_musl/gcc-11.3.0-initial'
make[3]: *** [Makefile:37: /home/zf/linux/Source/lede/build_dir/toolchain-x86_64_gcc-11.3.0_musl/gcc-11.3.0-initial/.built] Error 2
make[3]: Leaving directory '/home/zf/linux/Source/lede/toolchain/gcc/initial'
time: toolchain/gcc/initial/compile#4.05#0.63#4.67
ERROR: toolchain/gcc/initial failed to build.
make[2]: *** [toolchain/Makefile:97: toolchain/gcc/initial/compile] Error 1
make[2]: Leaving directory '/home/zf/linux/Source/lede'
make[1]: *** [toolchain/Makefile:93: /home/zf/linux/Source/lede/staging_dir/toolchain-x86_64_gcc-11.3.0_musl/stamp/.toolchain_compile] Error 2
make[1]: Leaving directory '/home/zf/linux/Source/lede'
make: *** [/home/zf/linux/Source/lede/include/toplevel.mk:231: world] Error 2
A：
libzstd.a可能是以前编译的文件，把/home/zf/linux/Source/lede/staging_dir/host/lib/libzstd.a删除后再编译，应该就可以了。
