mingw-w64 ... ld.exe: cannot find -lboost_filesystem

mingw-w64 ... ld.exe: cannot find -lboost_filesystem

本文关键字:-lboost filesystem find cannot ld exe mingw-w64      更新时间:2023-10-16

我正在尝试在"Windows 7 64bit"命令提示符下使用mingw编译简单的c ++程序。我得到的错误是:

>gcc fs.cpp -lboost_filesystem -lboost_system
c:/Program Files/mingw-w64/x86_64-8.1.0-win32-seh-rt_v6-rev0/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lboost_filesystem
c:/Program Files/mingw-w64/x86_64-8.1.0-win32-seh-rt_v6-rev0/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lboost_system
collect2.exe: error: ld returned 1 exit status

也许有用的系统变量信息:

c:Boostlib>echo %path%
C:Boostboost-buildbin;C:ProgramDataOracleJavajavapath;C:Program FilesCommon FilesMicrosoft SharedWindows Live;C:Program Files (x86)Common FilesMicrosoft SharedWindows Live;C:Windowssystem32;C:Windows;C:WindowsSystem32Wbem;C:WindowsSystem32WindowsPowerShellv1.0;C:Program Files (x86)Windows LiveShared;C:Program Files (x86)SkypePhone;c:Program Filesmingw-w64x86_64-8.1.0-win32-seh-rt_v6-rev0mingw64bin;c:Boostlib
c:Boostlib>echo %library_path%
c:Boostlib
c:Boostlib>echo %cplus_include_path%
c:Boostinclude

而 boost/lib 的内容是:

c:Boostlib>dir
 Volume in drive C is Acer
 Volume Serial Number is 62C5-4B7E
 Directory of c:Boostlib
13.06.2019.  00:31    <DIR>          .
13.06.2019.  00:31    <DIR>          ..
13.06.2019.  00:28         5.608.426 libboost_filesystem-mgw81-mt-d-x32-1_70
13.06.2019.  00:28         6.553.512 libboost_filesystem-mgw81-mt-d-x64-1_70
13.06.2019.  00:28         3.713.979 libboost_filesystem-mgw81-mt-d-x64-1_70
13.06.2019.  00:28            92.342 libboost_filesystem-mgw81-mt-d-x64-1_70
13.06.2019.  00:28           344.104 libboost_filesystem-mgw81-mt-s-x32-1_70
13.06.2019.  00:28           405.348 libboost_filesystem-mgw81-mt-s-x64-1_70
13.06.2019.  00:28         5.608.426 libboost_filesystem-mgw81-mt-sd-x32-1_7
13.06.2019.  00:28         6.553.512 libboost_filesystem-mgw81-mt-sd-x64-1_7
13.06.2019.  00:28           344.104 libboost_filesystem-mgw81-mt-x32-1_70.a
13.06.2019.  00:28           405.348 libboost_filesystem-mgw81-mt-x64-1_70.a
13.06.2019.  00:28           239.395 libboost_filesystem-mgw81-mt-x64-1_70.d
13.06.2019.  00:28            92.132 libboost_filesystem-mgw81-mt-x64-1_70.d
13.06.2019.  00:28             2.822 libboost_system-mgw81-mt-d-x32-1_70.a
13.06.2019.  00:28             3.118 libboost_system-mgw81-mt-d-x64-1_70.a
13.06.2019.  00:28            49.550 libboost_system-mgw81-mt-d-x64-1_70.dll
13.06.2019.  00:28             1.772 libboost_system-mgw81-mt-d-x64-1_70.dll
13.06.2019.  00:28               730 libboost_system-mgw81-mt-s-x32-1_70.a
13.06.2019.  00:28               924 libboost_system-mgw81-mt-s-x64-1_70.a
13.06.2019.  00:28             2.822 libboost_system-mgw81-mt-sd-x32-1_70.a
13.06.2019.  00:28             3.118 libboost_system-mgw81-mt-sd-x64-1_70.a
13.06.2019.  00:28               730 libboost_system-mgw81-mt-x32-1_70.a
13.06.2019.  00:28               924 libboost_system-mgw81-mt-x64-1_70.a
13.06.2019.  00:28            47.834 libboost_system-mgw81-mt-x64-1_70.dll
13.06.2019.  00:28             1.760 libboost_system-mgw81-mt-x64-1_70.dll.a

我尝试手动包含路径

gcc fs.cpp -o fs.exe -Lc:Boostlib -lboost_filesystem -lboost_system

或与

gcc fs.cpp -o fs.exe -L c:Boostlib -lboost_filesystem -lboost_system

或与

gcc fs.cpp -o fs.exe -L c:Boostlib -llibboost_filesystem -llibboost_system

并获得相同的输出。

对我来说,这看起来像是一个链接器问题。但是,我没有经验。这可能是库文件编译不良的产物吗?

在 Windows 上编译 c++ 时应该使用哪些选项?我哪里做错了?

我相信

您的问题是由boost库文件的复杂命名方案引起的,
请参阅提升 Windows 入门:库命名。

简而言之,boost 将字符附加到库文件名以指定(除其他事项外(:

  • 编译器版本: -mgw81
  • 多线程: -mt
  • 机器体系结构和地址模型:-x64
  • 和提升版本:-1_70 .

因此,boost_filesystem变成:boost_filesystem-mgw81-mt-x64-1_70boost_system变成:boost_system-mgw81-mt-x64-1_70,所以尝试:

gcc fs.cpp -o fs.exe -Lc:Boostlib -lboost_filesystem-mgw81-mt-x64-1_70 -lboost_system-mgw81-mt-x64-1_70

注意:像cmake这样的构建系统简化了这些问题,但它们可以引入新的问题,请参阅:在Windows上使用MinGW构建时,cmake FindBoost找不到Boost库。