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  • linux --> gcc编译之路径搜索

    gcc编译之路径搜索

    头文件

      --> 搜寻先从-I开始;

      --> 找gcc的环境变量 : C_INCLUDE_PATH,CPLUS_INCLUDE_PATH,OBJC_INCLUDE_PATH

      --> 内定目录:

    /usr/include 
    /usr/local/include
    /usr/lib/gcc-lib/i386-linux/2.95.2/include
    /usr/lib/gcc-lib/i386-linux/2.95.2/include/g++-3
    /usr/lib/gcc-lib/i386-linux/2.95.2/i386-linux/include

    如果安装gcc给定了prefix,那么就寻找目录:

    /usr/include 
    prefix/include
    prefix/xxx-xxx-xxx-gnulibc/include
    prefix/lib/gcc-lib/xxxx-xxx-xxx-gnulibc/2.8.1/include

    库文件

      --> 搜寻从-L开始

      --> 找gcc的环境变量LIBRARY_PATH

      --> 找内定目录

     /lib:/usr/lib: /usr/local/lib:

    运行动态库搜索路径

      -->编译目标代码时指定的动态库搜索路径(通过gcc的参数"-Wl,-rpath,"指定。多个动态库搜索路径之间用冒号":"分隔)

      -->环境变量LD_LIBRARY_PATH指定的动态库搜索路径;

      -->配置文件/etc/ld.so.conf中指定的动态库搜索路径;

      -->默认的动态库搜索路径/lib  /usr/lib。

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  • 原文地址:https://www.cnblogs.com/jeakeven/p/4985880.html
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