无法链接我自己的静态库

Question

我正在尝试将声音库添加到 Windows 中的 GLFW / OpenGL 项目。我已将声音项目设置为输出静态库 (.lib)。它编译得很好。

在我的主项目中，我添加了对 Sound 的引用和对 Sound 的依赖（以更改构建顺序）。我在 main.cpp 中包含“..\Sound\sound.h”，Intellisense 对一切都很满意。一切都编译得很好。但是，链接器很生气：

1>Link:
1>  LINK : ###\Projects\DeathRace\Debug\DeathRace.exe not found or not built by the last incremental link; performing full link
1>Sound.lib(sound.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '2' doesn't match value '0' in base_objects.obj
1>LINK : warning LNK4098: defaultlib 'MSVCRTD' conflicts with use of other libs; use /NODEFAULTLIB:library
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alListenerfv referenced in function "public: bool __thiscall SoundAPI::Startup(void)" (?Startup@SoundAPI@@QAE_NXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alListener3f referenced in function "public: bool __thiscall SoundAPI::Startup(void)" (?Startup@SoundAPI@@QAE_NXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alGetError referenced in function "public: bool __thiscall SoundAPI::Startup(void)" (?Startup@SoundAPI@@QAE_NXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alutGetError referenced in function "public: bool __thiscall SoundAPI::Startup(void)" (?Startup@SoundAPI@@QAE_NXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alutInit referenced in function "public: bool __thiscall SoundAPI::Startup(void)" (?Startup@SoundAPI@@QAE_NXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alutExit referenced in function "public: bool __thiscall SoundAPI::Shutdown(void)" (?Shutdown@SoundAPI@@QAE_NXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alDeleteBuffers referenced in function "public: bool __thiscall SoundAPI::Shutdown(void)" (?Shutdown@SoundAPI@@QAE_NXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alDeleteSources referenced in function "public: bool __thiscall SoundAPI::Shutdown(void)" (?Shutdown@SoundAPI@@QAE_NXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alutCreateBufferFromFile referenced in function "public: unsigned int * __thiscall SoundAPI::LoadSound(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?LoadSound@SoundAPI@@QAEPAIV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alSourcei referenced in function "public: unsigned int * __thiscall SoundAPI::CreateSource(void)" (?CreateSource@SoundAPI@@QAEPAIXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alSource3f referenced in function "public: unsigned int * __thiscall SoundAPI::CreateSource(void)" (?CreateSource@SoundAPI@@QAEPAIXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alSourcef referenced in function "public: unsigned int * __thiscall SoundAPI::CreateSource(void)" (?CreateSource@SoundAPI@@QAEPAIXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alGenSources referenced in function "public: unsigned int * __thiscall SoundAPI::CreateSource(void)" (?CreateSource@SoundAPI@@QAEPAIXZ)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alSourceQueueBuffers referenced in function "public: bool __thiscall SoundAPI::Queue(unsigned int *,unsigned int *)" (?Queue@SoundAPI@@QAE_NPAI0@Z)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alSourcePlay referenced in function "public: bool __thiscall SoundAPI::Play(unsigned int *)" (?Play@SoundAPI@@QAE_NPAI@Z)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alSourcePause referenced in function "public: bool __thiscall SoundAPI::Pause(unsigned int *)" (?Pause@SoundAPI@@QAE_NPAI@Z)
1>Sound.lib(sound.obj) : error LNK2019: unresolved external symbol __imp__alSourceStop referenced in function "public: bool __thiscall SoundAPI::Stop(unsigned int *)" (?Stop@SoundAPI@@QAE_NPAI@Z)
1>###\Projects\DeathRace\Debug\DeathRace.exe : fatal error LNK1120: 17 unresolved externals

我不知道该怎么做。 Lnk2038应该是debug和release之间的问题，但一切都是debug模式。 lnk2019 对 Sound.lib 应该没问题吧？

非常感谢！

Answer 1

你的库一切正常（除了你混合调试和发布运行时）。在调试模式下构建程序时，您必须链接调试版本。发布版本也是如此。这是针对错误LNK2038 和警告LNK4098。

其他错误是由于您无法将静态库与静态库（此处为：OpenAL）链接这一简单事实引起的，因为如果两个静态库引用相同的静态代码（本质上是导致多个定义）。

要解决这些错误，您必须做的事情很简单：将生成的可执行文件链接到您自己的 Sound.lib 以及正确的 OpenAL 库文件，一切都会好起来的。