Linux运行时链接器错误

Question

我正在POCO项目网站上的第一步教程,我已经在我的主目录下成功构建了库(Debian Linux,2.6.26,gcc 4.3.2)

~/Development/POCO

共享库位于

~/Development/POCO/lib/Linux/x86_64/lib

我的问题是,我构建的依赖于这些库的任何应用程序只能从共享库目录运行.

~/Development/POCO/lib/Linux/x86_64$ ldd ~/Development/Cloud/DateTimeSample/bin/Linux/x86_64/DateTime
        linux-vdso.so.1 =>  (0x00007fffe69fe000)
        libPocoFoundation.so.6 (0x00007fa8de44f000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x00007fa8de233000)
        libdl.so.2 => /lib/libdl.so.2 (0x00007fa8de02f000)
        librt.so.1 => /lib/librt.so.1 (0x00007fa8dde26000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007fa8ddb1a000)
        libm.so.6 => /lib/libm.so.6 (0x00007fa8dd897000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007fa8dd680000)
        libc.so.6 => /lib/libc.so.6 (0x00007fa8dd32d000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fa8de7e0000)

从这个目录运行DateTime可以正常工作.然而

~/Development/Cloud/DateTimeSample/bin/Linux/x86_64$ ldd DateTime
        linux-vdso.so.1 =>  (0x00007fff24dfe000)
        libPocoFoundation.so.6 => not found
        libpthread.so.0 => /lib/libpthread.so.0 (0x00007ffc1c7dd000)
        libdl.so.2 => /lib/libdl.so.2 (0x00007ffc1c5d9000)
        librt.so.1 => /lib/librt.so.1 (0x00007ffc1c3d0000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007ffc1c0c4000)
        libm.so.6 => /lib/libm.so.6 (0x00007ffc1be41000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007ffc1bc2a000)
        libc.so.6 => /lib/libc.so.6 (0x00007ffc1b8d7000)
        /lib64/ld-linux-x86-64.so.2 (0x00007ffc1c9f9000)

所以从任何其他目录运行可执行文件导致

error while loading shared libraries: libPocoFoundation.so.6: cannot open shared object file: No such file or directory

查看make进程的输出,正确指定了目录

g++ [blah] -L/home/npalko/Development/POCO/lib/Linux/x86_64 
           -lPocoFoundation

我试过设定

LD_LIBRARY_PATH

至

/home/npalko/Development/POCO/lib/Linux/x86_64

,但它没有改变任何东西.任何帮助将不胜感激!

Answer 1

如果您不想处理LD_LIBRARY_PATH变量,可以将链接器-rpath选项添加到gcc命令行.在您的情况下,这将是:

gcc ... -Wl,-rpath=/home/npalko/Development/POCO/lib/Linux/x86_64

这有效地硬编码了可执行文件中的路径,因此它可能适用于您的目的,也可能不适用.