我正在尝试安装库libLAS。我正在使用Microsoft Visual Studio 2010，Windows 7和Cmake 2.8.10.2。到目前为止，我已经安装了Boost 1.51，并且按照本教程进行操作：
http://www.liblas.org/compilation.html#using-visual-studio-9-2008-on-windows
在cmake出现了很多问题之后，我创建了.sln，现在尝试对其进行编译。特别是，我正在尝试构建项目“ liblas”。
我收到37个错误，所有错误都是这样的：
Error 1 error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ) C:\temp\libLAS\buildout\src\writer.cpp.obj
编辑后添加其他错误：
2> Creating library C:/temp/libLAS/buildout/bin/Release/liblas.lib and object C:/temp/libLAS/buildout/bin/Release/liblas.exp
2>writer.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>header.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>reader.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>header.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>point.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>point.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>reader.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>utility.cpp.obj : error LNK2019: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ) referenced in function "public: __cdecl std::basic_ostringstream<char,struct std::char_traits<char>,class std::allocator<char> >::basic_ostringstream<char,struct std::char_traits<char>,class std::allocator<char> >(int)" (??0?$basic_ostringstream@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEAA@H@Z)
2>writer.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>index.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>transform.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>cachedreader.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>header.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>indexoutput.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>chipper.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>factory.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>filter.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ)
2>writer.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>libboost_thread-vc100-mt-1_51.lib(thread.obj) : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>header.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>reader.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>header.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>point.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>point.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>reader.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>utility.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>writer.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>index.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>transform.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>cachedreader.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>header.cpp.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>indexoutput.obj : error LNK2019: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ) referenced in function "void __cdecl boost::system::`dynamic initializer for 'native_ecat''(void)" (??__Enative_ecat@system@boost@@YAXXZ)
2>chipper.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>factory.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>filter.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>libboost_thread-vc100-mt-1_51.lib(thread.obj) : error LNK2019: unresolved external symbol "public: static class boost::chrono::time_point<class boost::chrono::system_clock,class boost::chrono::duration<__int64,class boost::ratio<1,10000000> > > __cdecl boost::chrono::system_clock::now(void)" (?now@system_clock@chrono@boost@@SA?AV?$time_point@Vsystem_clock@chrono@boost@@V?$duration@_JV?$ratio@$00$0JIJGIA@@boost@@@23@@23@XZ) referenced in function "public: bool __cdecl boost::thread::try_join_until(class boost::chrono::time_point<class boost::chrono::system_clock,class boost::chrono::duration<__int64,class boost::ratio<1,1000000000> > > const &)" (?try_join_until@thread@boost@@QEAA_NAEBV?$time_point@Vsystem_clock@chrono@boost@@V?$duration@_JV?$ratio@$00$0DLJKMKAA@@boost@@@23@@chrono@2@@Z)
2>C:\temp\libLAS\buildout\bin\Release\liblas.dll : fatal error LNK1120: 3 unresolved externals
2>
2>Build FAILED.
最佳答案
BlueGo可以为您构建libLAS：
https://bitbucket.org/Vertexwahn/bluego
您可以通过以下方式使用VS2017在Windows上构建它：
set dest=C:\thirdparty\vs2017\x64
set cmake_command=cmake
set boost_root=C:/thirdparty/vs2017/x64/boost_1_65_0
if NOT [%1]==[] set dest=%~1
if NOT [%2]==[] set cmake_command="%~2"
if NOT [%3]==[] set boost_root=%~3
if [%1]==["--boost-root"] set boost_root=%~2
wget.exe --no-check-certificate https://github.com/libLAS/libLAS-1.6/archive/master.zip -O%cd%\master.zip
7za.exe x %cd%\master.zip -o%dest%
call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" amd64
%cmake_command% -DBUILD_STATIC_LIBS=ON -DBOOST_ROOT=%boost_root% -G"Visual Studio 15 2017 Win64" -H%dest%\libLAS-1.6-master -B%dest%\libLAS-1.6-master\build
del %cd%\master.zip
C:
cd %dest%\libLAS-1.6-master\build
%cmake_command% --build . --config Debug --target liblas
%cmake_command% --build . --config Release --target liblas
%cmake_command% --build . --config RelWithDebInfo --target liblas
%cmake_command% --build . --config Debug --target liblas_c
%cmake_command% --build . --config Release --target liblas_c
%cmake_command% --build . --config RelWithDebInfo --target liblas_c