linux (x11) 上 GLFW 上的鏈接器錯誤

Question

我剛剛在 Ubuntu 上安裝了 GLFW3，我正在測試文檔（ http://www.glfw.org/documentation.html ）中的示例代碼，但我遇到了這些錯誤。

我嘗試了添加 -ldl 之類的倍數，但似乎沒有任何效果。

這是錯誤日志（GCC）：

g++  -o bin/Debug/Game obj/Debug/main.o  -ldl -lglfw3 -lm -lGL -lGLU  
//usr/local/lib/libglfw3.a(vulkan.c.o): In function `_glfwInitVulkan':
vulkan.c:(.text+0x42): undefined reference to `dlopen'
vulkan.c:(.text+0xa9): undefined reference to `dlsym'
//usr/local/lib/libglfw3.a(vulkan.c.o): In function `_glfwTerminateVulkan':
vulkan.c:(.text+0x382): undefined reference to `dlclose'
//usr/local/lib/libglfw3.a(vulkan.c.o): In function `glfwGetInstanceProcAddress':
vulkan.c:(.text+0x72f): undefined reference to `dlsym'
//usr/local/lib/libglfw3.a(x11_init.c.o): In function `translateKeyCode':
x11_init.c:(.text+0x6a): undefined reference to `XkbKeycodeToKeysym'
x11_init.c:(.text+0x14a): undefined reference to `XkbKeycodeToKeysym'
x11_init.c:(.text+0x177): undefined reference to `XGetKeyboardMapping'
x11_init.c:(.text+0x191): undefined reference to `XFree'
//usr/local/lib/libglfw3.a(x11_init.c.o): In function `createKeyTables':
x11_init.c:(.text+0xc3e): undefined reference to `XkbGetMap'
x11_init.c:(.text+0xc61): undefined reference to `XkbGetNames'
x11_init.c:(.text+0x137f): undefined reference to `XkbFreeNames'
x11_init.c:(.text+0x1395): undefined reference to `XkbFreeKeyboard'
//usr/local/lib/libglfw3.a(x11_init.c.o): In function `hasUsableInputMethodStyle':
x11_init.c:(.text+0x14b2): undefined reference to `XGetIMValues'
x11_init.c:(.text+0x150c): undefined reference to `XFree'
//usr/local/lib/libglfw3.a(x11_init.c.o): In function `getSupportedAtom':
x11_init.c:(.text+0x155b): undefined reference to `XInternAtom'
//usr/local/lib/libglfw3.a(x11_init.c.o): In function `detectEWMH':
x11_init.c:(.text+0x15ea): undefined reference to `XInternAtom'
x11_init.c:(.text+0x1610): undefined reference to `XInternAtom'
x11_init.c:(.text+0x1678): undefined reference to `XFree'
x11_init.c:(.text+0x16a1): undefined reference to `XFree'
x11_init.c:(.text+0x16ad): undefined reference to `XFree'
x11_init.c:(.text+0x16be): undefined reference to `XFree'
x11_init.c:(.text+0x16ca): undefined reference to `XFree'
//usr/local/lib/libglfw3.a(x11_init.c.o):x11_init.c:(.text+0x190d): more undefined references to `XFree' follow
//usr/local/lib/libglfw3.a(x11_init.c.o): In function `initExtensions':
x11_init.c:(.text+0x194e): undefined reference to `dlopen'
x11_init.c:(.text+0x1993): undefined reference to `dlsym'
x11_init.c:(.text+0x19c1): undefined reference to `dlsym'
x11_init.c:(.text+0x19ef): undefined reference to `dlsym'
x11_init.c:(.text+0x1a1d): undefined reference to `dlsym'
x11_init.c:(.text+0x1a8b): undefined reference to `dlopen'
x11_init.c:(.text+0x1ad0): undefined reference to `dlsym'
x11_init.c:(.text+0x1afe): undefined reference to `dlsym'
x11_init.c:(.text+0x1b56): undefined reference to `XQueryExtension'
x11_init.c:(.text+0x1bdf): undefined reference to `dlopen'
x11_init.c:(.text+0x1c24): undefined reference to `dlsym'
x11_init.c:(.text+0x1c52): undefined reference to `dlsym'
x11_init.c:(.text+0x1c80): undefined reference to `dlsym'
x11_init.c:(.text+0x1cae): undefined reference to `dlsym'
x11_init.c:(.text+0x1cdc): undefined reference to `dlsym'
//usr/local/lib/libglfw3.a(x11_init.c.o):x11_init.c:(.text+0x1d0a): more undefined references to `dlsym' follow
//usr/local/lib/libglfw3.a(x11_init.c.o): In function `initExtensions':
x11_init.c:(.text+0x214a): undefined reference to `dlopen'
x11_init.c:(.text+0x218f): undefined reference to `dlsym'
x11_init.c:(.text+0x21bd): undefined reference to `dlsym'
x11_init.c:(.text+0x21eb): undefined reference to `dlsym'
x11_init.c:(.text+0x220d): undefined reference to `dlopen'
x11_init.c:(.text+0x2252): undefined reference to `dlsym'
x11_init.c:(.text+0x2280): undefined reference to `dlsym'
x11_init.c:(.text+0x22ae): undefined reference to `dlsym'
x11_init.c:(.text+0x23b4): undefined reference to `XkbQueryExtension'
x11_init.c:(.text+0x23f3): undefined reference to `XkbSetDetectableAutoRepeat'
x11_init.c:(.text+0x2420): undefined reference to `dlopen'

Answer 1

圖書館的順序很重要。 如果庫 A 依賴於庫 B，則在命令行中 A 必須在B之前。

在您的情況下，由於glfw3庫依賴於dl庫，您必須切換順序，以便glfw3在命令行中位於dl之前。

您還必須鏈接到X11庫。

所以完整的命令行應該看起來像

g++ -o bin/Debug/Game obj/Debug/main.o -lglfw3 -ldl -lm -lGL -lGLU -lX11