我如何在运行时摆脱LD_LIBRARY_PATH？ [英] How do I get rid of LD_LIBRARY_PATH at run-time?

问题描述

我正在构建一个使用英特尔的 IPP 库的C ++应用程序。这个库默认安装在/ opt中，并且需要你设置 LD_LIBRARY_PATH 来编译和运行你的软件（如果你选择共享库链接，我这样做了）。我已经修改了我的 configure.ac / Makefile.am ，这样在编译时我不需要设置该变量，但我仍然无法在运行时找到共享库;我该怎么做？

我正在编译 -Wl，-R / path / to / libdir flag使用 g ++

更新1 ：
其实我的二进制程序有一些IPP库正确链接，但只有一个不是：

  $ ldd myprogram 
 linux-vdso.so。 1 => （0x00007fffa93ff000）
 libippacem64t.so.6.0 => /opt/intel/ipp/6.0.2.076/em64t/sharedlib/libippacem64t.so.6.0（0x00007f22c2fa3000）
 libippsem64t.so.6.0 => /opt/intel/ipp/6.0.2.076/em64t/sharedlib/libippsem64t.so.6.0（0x00007f22c2d20000）
 libippcoreem64t.so.6.0 => /opt/intel/ipp/6.0.2.076/em64t/sharedlib/libippcoreem64t.so.6.0（0x00007f22c2c14000）
 [...] 
 libiomp5.so =>未找到
 libiomp5.so =>未找到
 libiomp5.so =>找不到
  

当然这个图书馆在那里：

  $ locate libiomp5.so 
 /opt/intel/ipp/6.0.2.076/em64t/sharedlib/libiomp5.so 
 正如Richard Pennington所建议的那样，我的应用程序并不直接使用缺失的库，但它被使用我使用的共享库。由于我无法重新编译IPP，因此解决我的问题的方法是在编译时添加 -liomp5 ，并使用连接器的-R选项。这实际上增加了libiomp5.so的rpath来解决这个问题！
 
I am building a C++ application that uses Intel's IPP library. This library is installed by default in /opt and requires you to set LD_LIBRARY_PATH both for compiling and for running your software (if you choose the shared library linking, which I did). I already modified my configure.ac/Makefile.am so that I do not need to set that variable when compiling, but I still can't find the shared library at run-time; how do I do that?

I'm compiling with the -Wl, -R/path/to/libdir flag using g++

Update 1:
Actually my binary program has some IPP libraries correctly linked, but just one is not:
$ ldd myprogram
linux-vdso.so.1 =>  (0x00007fffa93ff000)
libippacem64t.so.6.0 => /opt/intel/ipp/6.0.2.076/em64t/sharedlib/libippacem64t.so.6.0 (0x00007f22c2fa3000)
libippsem64t.so.6.0 => /opt/intel/ipp/6.0.2.076/em64t/sharedlib/libippsem64t.so.6.0 (0x00007f22c2d20000)
libippcoreem64t.so.6.0 => /opt/intel/ipp/6.0.2.076/em64t/sharedlib/libippcoreem64t.so.6.0 (0x00007f22c2c14000)
[...]
libiomp5.so => not found
libiomp5.so => not found
libiomp5.so => not found
Of course the library is there:
$ locate libiomp5.so
/opt/intel/ipp/6.0.2.076/em64t/sharedlib/libiomp5.so

解决方案
As suggested by Richard Pennington, the missing library is not used directly by my application, but it is used by the shared libraries I use. Since I cannot recompile IPP, the solution to my problem is to add -liomp5 when compiling, using the -R option for the linker. This actually adds the rpath for libiomp5.so fixing the problem!

                        
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