KDevelop4：加载时出错的共享库 [英] KDevelop4: Error while loading shared libraries

问题描述

我想使用Intel MKL库的第一次。我使用的CMake来构建一个简单的项目中使用MKL。我在KDevelop的4.6环境中工作。

I am trying to use the Intel MKL libraries for the first time. I am using CMake to build a simple project in which MKL is used. I work in the KDevelop 4.6 environment.

该项目建成并没有错误安装。链接库因此是成功的。虽然在KDevelop的执行，我收到以下错误：

The project is built and installed without errors. Linking the libraries is thus succesful. While executing within KDevelop, I get the following error:

错误而载入共享库：libmkl_intel_lp64.so：无法打开共享对象文件：没有这样的文件或目录

该CMakeLists文件看起来基本如下：

The CMakeLists file looks essentially as follows:

project(testmkl)

cmake_minimum_required(VERSION 2.6)

enable_language(Fortran)

set(CMAKE_C_FLAGS "-std=c99 -Wall -lpthread") 
set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")

# MKL
find_package(MKL REQUIRED)
include_directories(${MKL_INCLUDE_DIR})

find_package(M REQUIRED)
include_directories(${M_INCLUDES})

add_executable(testmkl ./main.c)
target_link_libraries(testmkl ${M_LIBRARIES} ${MKL_BLAS} ${MKL_LAPACK} ${MKL_INTEL} ${MKL_SEQUENTIAL} ${MKL_CORE})
install(TARGETS testmkl DESTINATION .)

libmkl_intel_lp64.so 在 LP_LIBRARY_PATH 环境变量的第一个文件夹中找到，所以我不希望的执行过程中的任何错误。其实，从命令窗口运行程序时，一切似乎很好地工作。

libmkl_intel_lp64.so is found in the first folder of the LP_LIBRARY_PATH environment variable, so I wouldn't expect any error during the execution. Actually, when running the program from the command window, everything seems to work fine.

该LDD输出的可执行文件是：

The ldd output for the executable is:

>> ldd ./testmkl
linux-vdso.so.1 =>  (0x00007fff951fe000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003061a00000)
libm.so.6 => /lib64/libm.so.6 (0x0000003061200000)
libmkl_intel_lp64.so => /opt/intel/composer_xe_2013_sp1.0.080/mkl/lib/intel64/libmkl_intel_lp64.so (0x00007f6f65ef6000)
libmkl_sequential.so => /opt/intel/composer_xe_2013_sp1.0.080/mkl/lib/intel64/libmkl_sequential.so (0x00007f6f65846000)
libmkl_core.so => /opt/intel/composer_xe_2013_sp1.0.080/mkl/lib/intel64/libmkl_core.so (0x00007f6f64317000)
libc.so.6 => /lib64/libc.so.6 (0x0000003060e00000)
    /lib64/ld-linux-x86-64.so.2 (0x0000003060600000)
libdl.so.2 => /lib64/libdl.so.2 (0x0000003061600000)

该链接库从而正确地找到。为什么不会在KDevelop的环境中工作方案？

The linked libraries are thus correctly found. Why won't the program work in the KDevelop environment?

欢迎任何帮助，非常感谢！

Any help is welcome, thanks!

推荐答案

首先一短的问题：你从终端excuting程序或试图从KDE的GUI（例如，通过双击）来执行？

First one short question: are you excuting your program from a terminal or trying to execute from KDE gui (e.g. by double-click)?

在许多Linux OS，现在则LD_LIBRARY_PATH德precated。 LD找到感谢的是，在 /etc/ld.so.conf中上市和 /etc/ld.so.conf.d 。您可能需要添加脚本的某个地方，包括您的库。事实上，你只需要将路径添加到库中的这些脚本。

On many linux OS, now LD_LIBRARY_PATH is deprecated. LD finds the dependencies thanks to what is listed in /etc/ld.so.conf and /etc/ld.so.conf.d . You may have to add a script somewhere there to include your libraries. In fact you just have to add the path to your libraries in those scripts.

例如，从 /etc/ld.so.conf/libc.conf ：

# libc default configuration
/usr/local/lib

这可能会为你工作。

编辑：
你还跑768,16 ldconfig的来更新数据库LD和/或使用 -v LDCONFIG ，它不相同，但有扩展的输出

edit: you shoud also run ldconfig to update the LD database and/or use ldconfig -v, which does the same but with extended output

EDIT2： ldconfig的可能需要root权限由GUI理解

edit2: ldconfig may require root privileges to be understood by the GUI

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