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  • OpenWrt编译问题记录

    错误一、config.status: error: cannot find input file: `xmetadataretriever/Makefile.in'

    configure: creating ./config.status
    config.status: creating Makefile
    config.status: error: cannot find input file: `xmetadataretriever/Makefile.in'
    Makefile:648: recipe for target '/mnt/hdd_6t/liuxueneng/releaseH3/h3_tina/out/h3-p1nor/compile_dir/target/libcedarx/.configured_yyy' failed
    make[3]: *** [/mnt/hdd_6t/liuxueneng/releaseH3/h3_tina/out/h3-p1nor/compile_dir/target/libcedarx/.configured_yyy] Error 1
    make[3]: Leaving directory '/mnt/hdd_6t/liuxueneng/releaseH3/h3_tina/package/allwinner/tina_multimedia'
    package/Makefile:192: recipe for target 'package/allwinner/tina_multimedia/compile' failed
    make[2]: *** [package/allwinner/tina_multimedia/compile] Error 2
    make[2]: Leaving directory '/mnt/hdd_6t/liuxueneng/releaseH3/h3_tina'

    原因:Autoconf配置生成Makefile.in需要Makefile.am,如果Makefile.am出现错误(格式,语法)则会出现该错误,

    出问题的Makefile.am不一定是xmetadataretriever/Makefile.am 

    config.status: error: cannot find input file: `xmetadataretriever/Makefile.in'

    此次出问题的Makefile.am是demoH264Player

    include $(top_srcdir)/Makefile.inc
    
    bin_PROGRAMS = demoH264Player
    
    demoH264Player_SOURCES =  ./demoH264Player.cpp 
                               ./h264FileRead.c 
    
    demoH264Player_CFLAGS = $(CFLAGS_CDXG)
    demoH264Player_CPPFLAGS = $(CPPFLAGS_CDXG)

    SOURCES 文件列表的时候最后一个文件的换行符连接符需要去掉,改成如下

    demoH264Player_SOURCES =  ./demoH264Player.cpp 
                               ./h264FileRead.c

     

    不过在Android.mk里面如果最后跟一个空行这样子是可以正常编译的。


    问题二 error: expression cannot be used as a function

    typedef定义的函数类型已经是一个指针类型,如果再增加指针方式定义函数,调用的时候会出现如上报错。

           PlayerCallback *mMediaPlayStatusCB; 
    然后使用

    mMediaPlayStatusCB(....);

    则会出现如上错误,正确定义如下:

    PlayerCallback mMediaPlayStatusCB; 


    错误三、will be initialized after [-Wreorder]

    类构造函数的成员初始化列表必须按照成员申明的书序初始化

    错误四、invalid use of non stactic member function

    类成员函数设置成回调必须是静态函数。

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  • 原文地址:https://www.cnblogs.com/tid-think/p/12596745.html
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