ld 忽略其他路径
ld ignores additional pathes
我正在尝试编译一个使用 Gurobi 的 C++ 程序。问题是 ld 找不到库，尽管 ldconfig 看到了它。我也尝试配置 LD_LIBRARY_PATH 变量但没有成功
$ sudo ldconfig -v
...
/opt/gurobi701/linux64/lib:
libgurobi.so.7.0.1 -> libgurobi.so.7.0.1
libaes70.so -> libaes70.so
libGurobiJni70.so -> libGurobiJni70.so
...
$ echo $LD_LIBRARY_PATH
:/opt/gurobi701/linux64/lib
$ ld -lgurobi_c++ --verbose
GNU ld (GNU Binutils for Ubuntu) 2.26.1
Émulations prises en charge :
elf_x86_64
elf32_x86_64
elf_i386
elf_iamcu
i386linux
elf_l1om
elf_k1om
i386pep
i386pe
utilisation du script interne d'édition de liens :
==================================================
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==================================================
échec de la tentative d'ouverture de //usr/local/lib/x86_64-linux-gnu/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/local/lib/x86_64-linux-gnu/libgurobi_c++.a
échec de la tentative d'ouverture de //lib/x86_64-linux-gnu/libgurobi_c++.so
échec de la tentative d'ouverture de //lib/x86_64-linux-gnu/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/lib/x86_64-linux-gnu/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/lib/x86_64-linux-gnu/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/local/lib64/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/local/lib64/libgurobi_c++.a
échec de la tentative d'ouverture de //lib64/libgurobi_c++.so
échec de la tentative d'ouverture de //lib64/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/lib64/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/lib64/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/local/lib/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/local/lib/libgurobi_c++.a
échec de la tentative d'ouverture de //lib/libgurobi_c++.so
échec de la tentative d'ouverture de //lib/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/lib/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/lib/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/x86_64-linux-gnu/lib64/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/x86_64-linux-gnu/lib64/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/x86_64-linux-gnu/lib/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/x86_64-linux-gnu/lib/libgurobi_c++.a
ld : ne peut trouver -lgurobi_c++
有什么想法吗？
LD_LIBRARY_PATH是动态loader所在的路径（ld.so和ld-linux.so on Linux,dyld on OS X) 查找库。当你 运行 依赖非标准路径中的库的程序时，你需要这个。
它不一定会影响 链接器 查找库的位置。使用 -L 标志指定 ld:
的搜索路径
ld -L/opt/gurobi701/linux64/lib -lgurobi_c++ ...
我正在尝试编译一个使用 Gurobi 的 C++ 程序。问题是 ld 找不到库，尽管 ldconfig 看到了它。我也尝试配置 LD_LIBRARY_PATH 变量但没有成功
$ sudo ldconfig -v
...
/opt/gurobi701/linux64/lib:
libgurobi.so.7.0.1 -> libgurobi.so.7.0.1
libaes70.so -> libaes70.so
libGurobiJni70.so -> libGurobiJni70.so
...
$ echo $LD_LIBRARY_PATH
:/opt/gurobi701/linux64/lib
$ ld -lgurobi_c++ --verbose
GNU ld (GNU Binutils for Ubuntu) 2.26.1
Émulations prises en charge :
elf_x86_64
elf32_x86_64
elf_i386
elf_iamcu
i386linux
elf_l1om
elf_k1om
i386pep
i386pe
utilisation du script interne d'édition de liens :
==================================================
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==================================================
échec de la tentative d'ouverture de //usr/local/lib/x86_64-linux-gnu/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/local/lib/x86_64-linux-gnu/libgurobi_c++.a
échec de la tentative d'ouverture de //lib/x86_64-linux-gnu/libgurobi_c++.so
échec de la tentative d'ouverture de //lib/x86_64-linux-gnu/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/lib/x86_64-linux-gnu/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/lib/x86_64-linux-gnu/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/local/lib64/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/local/lib64/libgurobi_c++.a
échec de la tentative d'ouverture de //lib64/libgurobi_c++.so
échec de la tentative d'ouverture de //lib64/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/lib64/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/lib64/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/local/lib/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/local/lib/libgurobi_c++.a
échec de la tentative d'ouverture de //lib/libgurobi_c++.so
échec de la tentative d'ouverture de //lib/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/lib/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/lib/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/x86_64-linux-gnu/lib64/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/x86_64-linux-gnu/lib64/libgurobi_c++.a
échec de la tentative d'ouverture de //usr/x86_64-linux-gnu/lib/libgurobi_c++.so
échec de la tentative d'ouverture de //usr/x86_64-linux-gnu/lib/libgurobi_c++.a
ld : ne peut trouver -lgurobi_c++
有什么想法吗？
LD_LIBRARY_PATH是动态loader所在的路径（ld.so和ld-linux.so on Linux,dyld on OS X) 查找库。当你 运行 依赖非标准路径中的库的程序时，你需要这个。
它不一定会影响 链接器 查找库的位置。使用 -L 标志指定 ld:
ld -L/opt/gurobi701/linux64/lib -lgurobi_c++ ...