【发布时间】：2015-02-25 13:39:41
【问题描述】：
我正在尝试使用命令从 Boost 构建“系统”库：
bjam --toolset=gcc 目标操作系统=qnx --build-dir=c:\boost_1_57_0 --build-type=complete --with-system 阶段
并不断出错：
C:\boost_1_57_0>bjam --toolset=gcc target-os=qnx --build-dir=c:\boost_1_57_0 --build-type=complete --with-system 阶段 ...找到 1 个目标... ...更新 1 个目标... config-cache.write c:\boost_1_57_0\boost\bin.v2\project-cache.jam ...更新了 1 个目标...
组件配置：
- atomic : not building - chrono : not building - container : not building - context : not building - coroutine : not building - date_time : not building - exception : not building - filesystem : not building - graph : not building - graph_parallel : not building - iostreams : not building - locale : not building - log : not building - math : not building - mpi : not building - program_options : not building - python : not building - random : not building - regex : not building - serialization : not building - signals : not building - system : building - test : not building - thread : not building - timer : not building - wave : not building...找到 205 个目标... ...更新 4 个目标... gcc.link.dll c:\boost_1_57_0\boost\bin.v2\libs\system\build\gcc-mingw-4.8.1\debug\target-os-qnx\threading-multi\libboost_system-mgw48-mt-d-1_57.so.1.57 .0 c:/mingw/bin/../lib/gcc/mingw32/4.8.1/../../../../mingw32/bin/ld.exe： 找不到 -lrt collect2.exe：错误：ld 返回 1 个退出状态
"g++" -o "c:\boost_1_57_0\boost\bin.v2\libs\system\build\gcc-mingw-4.8.1\debug\target-os-qnx\threading-multi\libboost_system-mgw48-mt-d-1_57.so.1.57.0"-shared -Wl,--start-group "c:\boost_1_57 _0\boost\bin.v2\libs\system\build\gcc-mingw-4.8.1\debug\target-os-qnx\threading-multi\error_code.o" -Wl,-Bstatic -Wl,-Bdynamic -lrt -Wl,--end-group -g -pthread
...gcc.link.dll 失败 c:\boost_1_57_0\boost\bin.v2\libs\system\build\gcc-mingw-4.8.1\debug\target-os-qnx\threading-multi\libboost_system-mgw48-mt-d-1_57.so.1.57 .0... ...跳过 libboost_system-mgw48-mt-d-1_57.so.1.57.0 缺乏 libboost_system-mgw48- mt-d-1_57.so.1.57.0... gcc.link.dll c:\boost_1_57_0\boost\bin.v2\libs\system\build\gcc-mingw-4.8.1\release\target-os-qnx\threading-multi\libboost_system-mgw48-mt-1_57.so.1.57.0 c:/mingw/bin/../lib/gcc/mingw32/4.8.1/../../../../mingw32/bin/ld.exe： 找不到 -lrt collect2.exe：错误：ld 返回 1 个退出状态
"g++" -o "c:\boost_1_57_0\boost\bin.v2\libs\system\build\gcc-mingw-4.8.1\release\target-os-qnx\threading-multi\libboost_system-mgw48-mt-1_57.so.1.57.0"-shared -Wl,--start-group "c:\boost_1_57 _0\boost\bin.v2\libs\system\build\gcc-mingw-4.8.1\release\target-os-qnx\threading-multi\error_code.o" -Wl,-Bstatic -Wl,-Bdynamic -lrt -Wl,--end-group -pthread
...gcc.link.dll 失败 c:\boost_1_57_0\boost\bin.v2\libs\system\build\gcc-mingw-4.8.1\release\target-os-qnx\threading-multi\libboost_system-mgw48-mt-1_57.so.1.57.0 ... ...跳过 libboost_system-mgw48-mt-1_57.so.1.57.0 缺乏 libboost_system-mgw48- mt-1_57.so.1.57.0... ...更新 2 个目标失败... ...跳过 2 个 目标...
rt lib好像不见了，哪里可以得到这样的lib来成功编译'system'lib？
【问题讨论】：