glfw3编译未定义的引用 [英] glfw3 compiling undefined references
问题描述
我有一个编译我的程序使用glfw3库的问题。
I have a problem with compiling my program which uses glfw3 library.
我得到未定义的引用的错误列表当尝试编译与make但我的类。
stdout:
I'm getting list of errors of undefined references when trying to compile with make but my classes are compiled into .o files, only final executable file is not created.
stdout:
stderr:
stderr:
这是我的makefile:
/usr/local/lib/libglfw3.a(context.c.o): In function `parseGLVersion':
context.c:(.text+0x53): undefined reference to `glGetString'
/usr/local/lib/libglfw3.a(context.c.o): In function `_glfwRefreshContextAttribs':
context.c:(.text+0x907): undefined reference to `glGetIntegerv'
context.c:(.text+0x98a): undefined reference to `glGetIntegerv'
context.c:(.text+0x9df): undefined reference to `glGetIntegerv'
context.c:(.text+0xa32): undefined reference to `glGetIntegerv'
/usr/local/lib/libglfw3.a(context.c.o): In function `glfwExtensionSupported':
context.c:(.text+0xd59): undefined reference to `glGetString'
context.c:(.text+0xd93): undefined reference to `glGetIntegerv'
/usr/local/lib/libglfw3.a(window.c.o): In function `glfwCreateWindow':
window.c:(.text+0x6f8): undefined reference to `glClear'
/usr/local/lib/libglfw3.a(x11_time.c.o): In function `getRawTime':
x11_time.c:(.text+0x20): undefined reference to `clock_gettime'
/usr/local/lib/libglfw3.a(x11_time.c.o): In function `_glfwInitTimer':
x11_time.c:(.text+0x72): undefined reference to `clock_gettime'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `getFBConfigAttrib':
glx_context.c:(.text+0x51): undefined reference to `glXGetFBConfigAttrib'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `chooseFBConfig':
glx_context.c:(.text+0x7e): undefined reference to `glXGetClientString'
glx_context.c:(.text+0x104): undefined reference to `glXGetFBConfigs'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `createLegacyContext':
glx_context.c:(.text+0x43f): undefined reference to `glXCreateNewContext'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `_glfwInitContextAPI':
glx_context.c:(.text+0x48f): undefined reference to `glXQueryExtension'
glx_context.c:(.text+0x4ca): undefined reference to `glXQueryVersion'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `_glfwCreateContext':
glx_context.c:(.text+0x791): undefined reference to `glXGetVisualFromFBConfig'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `_glfwDestroyContext':
glx_context.c:(.text+0xd09): undefined reference to `glXDestroyContext'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `_glfwPlatformMakeContextCurrent':
glx_context.c:(.text+0xd55): undefined reference to `glXMakeCurrent'
glx_context.c:(.text+0xd70): undefined reference to `glXMakeCurrent'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `_glfwPlatformSwapBuffers':
glx_context.c:(.text+0xdc2): undefined reference to `glXSwapBuffers'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `_glfwPlatformExtensionSupported':
glx_context.c:(.text+0xe69): undefined reference to `glXQueryExtensionsString'
/usr/local/lib/libglfw3.a(glx_context.c.o): In function `_glfwPlatformGetProcAddress':
glx_context.c:(.text+0xeb1): undefined reference to `glXGetProcAddressARB'
collect2: ld returned 1 exit status
make: *** [ecl] Error 1
this is my makefile:
CXX = g++
CXXFLAGS = -Wall -g
LIBS = -lGL -lGLU -lglfw3 -lX11 -lXxf86vm -lXrandr -lpthread -lXi
DEPENDENCIES = main.o error.o sWindow.o
# ****************************************************
# Targets needed to bring the executable up to date
ecl: $(DEPENDENCIES)
$(CXX) $(CXXFLAGS) -o ecl $(DEPENDENCIES) $(LIBS)
main.o: main.cpp
$(CXX) $(CXXFLAGS) -c main.cpp $(LIBS)
error.o: error.cpp
$(CXX) $(CXXFLAGS) -c error.cpp $(LIBS)
sWindow.o: sWindow.cpp
$(CXX) $(CXXFLAGS) -c sWindow.cpp $(LIBS)
clean:
rm -f *.o main
echo "Clean done"
推荐答案
按照以下顺序执行:
-lglfw3 -lGLU -lGL
而不是这一个:
-lGL -lGLU -lglfw3
GCC对在链接阶段指定库的顺序非常敏感。例如,如果 libA.a
依赖于 libB.a
,那么你必须在下面调用linker方式:
GCC is very sensitive to the order in which you specify libraries during the linking stage. For example, if libA.a
depends on libB.a
, then you'd have to invoke linker in the following way:
gcc ... -lA -lB ...
在你的情况下, libglfw3.a
显然取决于 libGL.a
,因此您得到的错误。
In your case, libglfw3.a
obviously depends on libGL.a
, hence the errors you are getting.
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