问链接库时对`boost::filesystem::path_traits::dispatch的未定义引用？

EN

我构建了Gource项目。执行make时会出现编译错误。

g++ -std=gnu++0x -Wall -Wno-符号-比较-Wno-未使用-但-设置-变量-Wno-未使用-变量-g -O2 -pthread -pthread -o gource src/gource action.o src/gource bloom.o src/gource caption.o src/core/gource conffile.o src/gource display.o src/core/gource o src/core/gource/fxfont.o src/core/ologger.o src/core/gource。O src/core/src/core/gource resource.o.o src/core/sdlapp.o src/core/src/core/src/core/sdlapp.o src/core/gource Seklog.o src/core/gue-setings.o src/core/shader.o/co-shader.core/味精-shader_core/core/stringhash.o src/core/core texture.o src/core/png_gource_写成.o src/core/gource timezone.o src/core/gource vbo.o src/src/guec-vectors.o src/gource dinode.o src/gource file.o src/file.o/apache.o src/formats /gource bzr.o src/.o/gource提交.o src/格式/cvs cvs/formats/cvs cvs2cl.o src/co-cvs2cl.o src/gource/cvs git.osrc/格式-git.osrc/格式/gource hg.o src/formats/gource svn.o src/gource gucce.o src/gource gource_shell.o.o src/gource key.o src/gource logmill.o src/gource main.o src/gource pawn.o src/gource pline.o src/gml.osrc/user.o src/user.o src/gource zoomcamerera.o src/tinytinytinyxerxer.rc/gource/srcO src/tinyxml/gource tinyxml.o src/tinyxml/gource tinyxmlparser.o -lGL -lGLU -lfreetype -lpcre -lGLEW -lGLU -lGL -lSDL2_image -lSDL2 -lpng15 -lboost_system -lboost_filesystem src/gource_setings.o:函数boost::filesystem::path::path<boost::filesystem::directory_entry>(boost::filesystem::directory_entry const&, boost::enable_if<boost::filesystem::path_traits::is_pathable<boost::decay<boost::filesystem::directory_entry>::type>, void>::type*)': /usr/include/boost/filesystem/path.hpp:139: undefined reference to -lSDL2 const&，std::__cxx11::basic_string&，std::codecvt const&)‘collect2: collect2: ld返回了1个退出状态

构建环境使用libboost_filesystem.so.1.53.0。

⋊> /h/m/Gource on master ◦  ll /usr/lib64/libboost_filesystem.so                                                                                                                                                                                        18:26:31
lrwxrwxrwx. 1 root root 29 Sep 27  2020 /usr/lib64/libboost_filesystem.so -> libboost_filesystem.so.1.53.0*

我使用strings挖掘libboost_filesystem.so.1.53.0并找到像boost::filesystem::path_traits::dispatch这样的符号。

⋊> /h/m/Gource on master ◦  strings /usr/lib64/libboost_filesystem-mt.so | grep path_traits                                                                                                                                                             18:29:50
_ZN5boost10filesystem11path_traits8dispatchERKNS0_15directory_entryERSsRKSt7codecvtIwc11__mbstate_tE
_ZN5boost10filesystem11path_traits7convertEPKcS3_RSbIwSt11char_traitsIwESaIwEERKSt7codecvtIwc11__mbstate_tE
_ZN5boost10filesystem11path_traits7convertEPKwS3_RSsRKSt7codecvtIwc11__mbstate_tE

查找符号：

> ⋊> /h/m/Gource on master ◦ nm -DC /usr/lib64/libboost_filesystem.so | grep dispatch
0000000000007800 T boost::filesystem::path_traits::dispatch(boost::filesystem::directory_entry const&, std::string&, std::codecvt<wchar_t, char, __mbstate_t> const&)

图书馆的展览如下：

⋊> /h/m/Gource on master ◦  ls /usr/lib64/libboost_filesystem.so* -l                                                                                                                                                                                    19:22:03
lrwxrwxrwx. 1 root root     29 Sep 27  2020 /usr/lib64/libboost_filesystem.so -> libboost_filesystem.so.1.53.0*
-rwxr-xr-x. 1 root root  94760 Apr  1  2020 /usr/lib64/libboost_filesystem.so.1.53.0*
-rwxr-xr-x. 1 root root 103592 Apr 24  2019 /usr/lib64/libboost_filesystem.so.1.69.0*

这个编译错误意味着什么？提前谢谢。