glfw3错误:命令行缺少DSO [英] glfw3 error: DSO Missing from command line

问题描述

我最近不得不在PC上重新安装Linux Mint.我重新安装了所有库，例如GLFW，并遇到了从未见过的错误.不幸的是，由于无法找到对我有用的修复程序，我的google-fu技能似乎无法与这个错误相提并论.旁注:这些程序在我的旧安装中可以正常编译，并且在运行Linux Mint 17.2的笔记本电脑上也可以完美编译.

I recently had to reinstall Linux Mint on my PC. I reinstalled all my libraries, such as GLFW and came across an error I have never seen before. Unfortunately my google-fu skills do not seem up to par for this error as I've not been able to find any fixes that work for me. Sidenote: these programs compiled fine on my old installation, and they also compile perfectly fine on my laptop that also runs Linux Mint 17.2.

这是我用来编译的编译语句:

This is the compile statement I using to compile:

g++ -std=c++11 main.cpp -o out -lGL -lGLU -lglfw3 -lX11 -lXxf86vm -lXrandr -lpthread -lXi

这是航站楼向我吐出的东西:

This is what the terminal spits out at me:

/usr/bin/ld: //usr/local/lib/libglfw3.a(glx_context.c.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5'
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/libdl.so: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

所以，如果有人能告诉我为什么我得到这个/或如何解决这个问题，那绝对是惊人的！提前谢谢您的帮助.

So, if anyone can tell me why I'm getting this/or how to fix it that would be absolutely amazing! Thanks ahead of time for any help.

我已经重新安装了Mint两次，以尝试解决此问题.每次都会出现.

I have reinstalled Mint twice in order to try and fix this. It turns up everytime.

我一直在摆弄，但仍未找到问题.

EDIT 2: I've been fiddling around and still have yet to find an issue.

推荐答案

似乎缺少的符号来自libdl.

作为额外的奖励，我将给您一个Makefile.请记住要使用制表符而不是空格缩进，否则Makefile将无法正常工作.

As an added bonus, I'm going to give you a Makefile. Remember to indent with tabs, NOT spaces, otherwise the Makefile won't work.

all: out
clean:
        rm -f out *.o
.PHONY: all clean

CXX = g++
CPPFLAGS =
CXXFLAGS = -std=c++11 -Wall -Wextra -g
LIBS = -lGL -lGLU -lglfw3 -lX11 -lXxf86vm -lXrandr -pthread -lXi -ldl
LDFLAGS =

out: main.o
        $(CXX) $(LDFLAGS) -o $@ $^ $(LIBS)

但是，如果使用pkg-config，会容易得多.我不知道正确的命令是什么(我现在不在Linux上，所以无法检查)，但是它看起来像这样:

However, it would be a lot easier if you used pkg-config. I don't know off the top of my head the right command (I'm not on Linux now so I can't check), but it will look like this:

packages = glfw3
CPPFLAGS := $(shell pkg-config --cflags $(packages))
LIBS := $(shell pkg-config --libs $(packages))

这样，您甚至不必知道您需要-ldl，因为pkg-config会为您解决.这是标准的做事方式.

This way you won't have to even know that you need -ldl, because pkg-config will figure it out for you. This is the standard way of doing things.

尝试自己运行pkg-config --libs glfw3来查看输出.如果尚未安装，请运行sudo apt-get install pkg-config.

Try running pkg-config --libs glfw3 for yourself to see the output. If it's not installed, run sudo apt-get install pkg-config.

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