如何避免“错误LNK2005:”(已经定义的stdlib函数)当编译libpng与Microsoft Visual Studio ’08?

(为什么我试图这样做:我没有运气在Windows上使用libpng的预构建二进制文件(尽管多次尝试和错误),因此我正在尝试自己编译,我发现this helpful blog post关于这个,完成与Microsoft Visual Studio 2008项目文件,但不幸的是仍然无法使用它。)

当链接到zlib二进制文件here时,它成功编译,但是当尝试将其链接到测试文件时,我收到以下内容:

    C:\Documents and Settings\Administrator\My Documents>cl "C:\Documents and Settin
    gs\Administrator\My Documents\test.c" "C:\Documents and Settings\Administrator\M
    y Documents\libpng.lib" -I "C:\Documents and Settings\Administrator\My Documents\include"

    Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 15.00.30729.01 for 80x86
    Copyright (C) Microsoft Corporation.  All rights reserved.

    test.c
    Microsoft (R) Incremental Linker Version 9.00.30729.01
    Copyright (C) Microsoft Corporation.  All rights reserved.

    /out:test.exe
    test.obj
    "C:\Documents and Settings\Administrator\My Documents\libpng.lib"
    MSVCRTD.lib(MSVCR90D.dll) : error LNK2005: _abort already defined in LIBCMT.lib(
    abort.obj)
    MSVCRTD.lib(MSVCR90D.dll) : error LNK2005: _fread already defined in LIBCMT.lib(
    fread.obj)
    MSVCRTD.lib(MSVCR90D.dll) : error LNK2005: _malloc already defined in LIBCMT.lib
    (malloc.obj)
    MSVCRTD.lib(MSVCR90D.dll) : error LNK2005: _free already defined in LIBCMT.lib(f
    ree.obj)
    MSVCRTD.lib(MSVCR90D.dll) : error LNK2005: ___iob_func already defined in LIBCMT
    .lib(_file.obj)
    LINK : warning LNK4098: defaultlib 'MSVCRTD' conflicts with use of other libs; u
    se /NODEFAULTLIB:library
    test.exe : fatal error LNK1169: one or more multiply defined symbols found

任何人都可以关心如何解决这些错误?

问题是两个项目之一是使用多线程DLL,而另一个项目是使用多线程(没有DLL)在项目属性 – >配置属性 – > C/C++ – >代码生成

发生了几次。

确保即使对于发行版本进行“同步”设置,也可以为每种可能的组合(调试,非调试等)进行“同步”

翻译自:https://stackoverflow.com/questions/1937937/how-to-avoid-error-lnk2005-already-defined-stdlib-functions-when-compiling

转载注明原文:如何避免“错误LNK2005:”(已经定义的stdlib函数)当编译libpng与Microsoft Visual Studio ’08?