C++ 编译SDL2+；OpenGL&x2B；Windows上代码：：块中的项目：未定义的引用

我正在检查创建使用OpenGL代码的windows应用程序的不同变体。我对OpenGL核心概要文件（即所谓的“现代OpenGL”）特别感兴趣。我使用Code:：Blocks作为我的IDE

首先，我编写了一个简单的WinAPI应用程序。它工作得很好，直到我尝试运行一些核心代码。这向我展示了如果我想在Windows中使用现代OpenGL，WinAPI在这里不起作用，因为它是用即时模式修复的

所以，我的下一步是使用GLFW+GLAD（在站点上生成）创建一个项目。在这个过程中，OpenGL函数中有一些未解析的符号，但很高兴解决了这个问题，我的项目就完成了。编译和运行没有问题

这次我想测试一个SDL变体。我下载了SDL2头和库，并将它们放在C:：B安装中正确的文件夹中。起初，我编写了一个简单的纯SDL2应用程序，它工作得很好，这向我表明，构建选项中包含库和库链接不会让编译器被我的代码阻塞

现在我添加了一些使用opengl核心函数的代码。最初编译代码时，编译器会抱怨这些函数。我通过再次添加“高兴”来解决这些问题，就像我以前的项目一样，它工作得很好，但只是编译。当试图链接我的程序时，编译器会抛出很多这样的错误：

g++.exe  -o bin\Debug\OpenGL_SDL.exe obj\Debug\glad.o obj\Debug\main.o  -static-libstdc++ -static-libgcc -static -lmingw32 -lSDL2main -lSDL2 -lglew32 -opengl32 -lglu32 -mwindows  
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_hidapi.o): In function `PLATFORM_hid_enumerate':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/hidapi/windows/hid.c:354: undefined reference to `__imp_SetupDiGetClassDevsA'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/hidapi/windows/hid.c:354: undefined reference to `__imp_SetupDiEnumDeviceInterfaces'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/hidapi/windows/hid.c:378: undefined reference to `__imp_SetupDiGetDeviceInterfaceDetailA'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/hidapi/windows/hid.c:415: undefined reference to `__imp_SetupDiEnumDeviceInfo'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/hidapi/windows/hid.c:420: undefined reference to `__imp_SetupDiGetDeviceRegistryPropertyA'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/hidapi/windows/hid.c:565: undefined reference to `__imp_SetupDiDestroyDeviceInfoList'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/hidapi/windows/hid.c:427: undefined reference to `__imp_SetupDiGetDeviceRegistryPropertyA'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windows.o): In function `WIN_CoInitialize':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/core/windows/SDL_windows.c:76: undefined reference to `__imp_CoInitializeEx'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windows.o): In function `WIN_CoUninitialize':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/core/windows/SDL_windows.c:95: undefined reference to `__imp_CoUninitialize'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_SetupAPI':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:650: undefined reference to `ImmGetIMEFileNameA'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:663: undefined reference to `ImmGetContext'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:666: undefined reference to `ImmReleaseContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_GetId':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:584: undefined reference to `ImmGetIMEFileNameA'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:599: undefined reference to `GetFileVersionInfoSizeA'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:603: undefined reference to `GetFileVersionInfoA'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:604: undefined reference to `VerQueryValueA'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `UILess_GetCandidateList':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:1021: undefined reference to `__imp_SysFreeString'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_ClearComposition':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:716: undefined reference to `ImmGetContext'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:720: undefined reference to `ImmNotifyIME'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:724: undefined reference to `ImmNotifyIME'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:725: undefined reference to `ImmReleaseContext'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:722: undefined reference to `ImmSetCompositionStringW'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_Disable':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:404: undefined reference to `ImmAssociateContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `UIElementSink_BeginUIElement':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:1088: undefined reference to `__imp_SysFreeString'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `UIElementSink_UpdateUIElement':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:1115: undefined reference to `__imp_SysFreeString'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_Init':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:348: undefined reference to `__imp_CoCreateInstance'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:363: undefined reference to `ImmGetContext'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:364: undefined reference to `ImmReleaseContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `UILess_SetupSinks':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:1229: undefined reference to `__imp_CoCreateInstance'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_Quit':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:418: undefined reference to `ImmAssociateContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_Enable':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:389: undefined reference to `ImmAssociateContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `WIN_SetTextInputRect':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:244: undefined reference to `ImmGetContext'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:251: undefined reference to `ImmSetCompositionWindow'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:252: undefined reference to `ImmReleaseContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_HandleMessage':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:889: undefined reference to `ImmGetContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_GetCompositionString':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:732: undefined reference to `ImmGetCompositionStringW'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:737: undefined reference to `ImmGetCompositionStringW'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_HandleMessage':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:927: undefined reference to `ImmReleaseContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_GetReadingString':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:459: undefined reference to `ImmGetContext'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:531: undefined reference to `ImmReleaseContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_HandleMessage':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:922: undefined reference to `ImmGetContext'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_GetCandidateList':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:800: undefined reference to `ImmGetCandidateListW'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:804: undefined reference to `ImmGetCandidateListW'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_GetCompositionString':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:732: undefined reference to `ImmGetCompositionStringW'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/video/windows/SDL_windowskeyboard.c:737: undefined reference to `ImmGetCompositionStringW'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_dinputhaptic.o): In function `SDL_DINPUT_HapticInit':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/haptic/windows/SDL_dinputhaptic.c:89: undefined reference to `__imp_CoCreateInstance'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_systimer.o): In function `SDL_SetSystemTimerResolution':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/timer/windows/SDL_systimer.c:57: undefined reference to `__imp_timeBeginPeriod'
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/timer/windows/SDL_systimer.c:51: undefined reference to `__imp_timeEndPeriod'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_systimer.o): In function `SDL_TicksInit':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/timer/windows/SDL_systimer.c:102: undefined reference to `__imp_timeGetTime'
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib\libSDL2.a(SDL_systimer.o): In function `SDL_SetSystemTimerResolution':
/Users/valve/release/SDL/SDL2-2.0.12-source/foo-x64/../src/timer/windows/SDL_systimer.c:51: undefined reference to `__imp_timeEndPeriod'

我很确定我在链接库时弄错了什么。也许他们的顺序不对。也许我错过了一些或这可能是另一个错误

链接器选项中的我的库列表是：

mingw32
SDL2main
SDL2
glew32
opengl32
glu32

---

我不知道什么样的库是“\uu imp\u SetupDiGetClassDevsA”及其公司，因此我不知道该怎么办☹.

好的，我找到了问题所在。我发现有些人在互联网的不同部分问了类似的问题，所以我在这里发布了我自己问题的答案，这样其他人可能会发现（我希望他们会发现这很有用）

这些函数来自SDL2，它不想静态编译。 根据这篇文章，“正确的方法”是从sdl2包附带的

bin\

文件夹运行

sdl2配置。使用
--static libs
运行它应该会给我们一个链接器选项列表，这些选项将写入“构建选项…/linker settings/Other linker options”对话框。就我而言，它是：
-lmingw32-lSDL2main-lSDL2-mwindows-Wl，-无未定义-Wl，-dynamicbase-Wl，--nxcompat-Wl，-高熵va-lm-ldinput8-ldxguid-ldxerr8-luser32-lgdi32-lwinmm-limm32-lole32-loleaut32-lsetupapi-lversion-luuid-static libgcc
（这个列表比我在发帖中想的要长得多）

我之前没有找到它，因为
sdl2 config
是一个Bash文件，而code:：Blocks附带的MinGW没有Bash解释器，所以我无法正常运行它。幸运的是，它是一个文本文件（而不是我第一次猜测的二进制程序），所以我只是搜索了它的正确行
 最简单的解决方案是不静态链接lib。因为静态链接，所以需要针对SDL2的每个依赖项手动链接，大约有20个依赖项。请参见SDL随附的
sdl2.pc
，了解确切的标志。“我不知道什么是库”\uuu imp\u SetupDiGetClassDevsA“和它的公司”嗯，你可以用谷歌搜索函数名。“如果我想在Windows中使用现代OpenGL，WinAPI是没有用的”你确定吗？SDL在幕后使用WinAPI，它不能是其他任何东西。
glad
或
glew
。选择一个，但不要混合使用。@HolyBlackCat通过删除
-static
来说明您的解决方案是有效的，但仅当在code:：Blocks中运行应用程序时有效。当我尝试手动运行程序时，它会抱怨“libwnpthread-1.dll”。我添加该标志是为了避免动态链接出现问题（但是，我在应用程序文件夹中明智地复制了sdl2.dll，因此它至少不会抱怨该标记）@Felix.leg也将该dll复制到应用程序文件夹中。它随编译器一起提供。您可能还需要
libgcc…dll
和
libstdc++…dll
。