https://github.com/laazyboy13/linux-csgo-external/issues/6 我如何让它找到 libx11-dev？
william@william-elementarylinux:~/csgohack$ make
Linking CXX executable build/csgo_external
/usr/bin/ld: cannot find -lX11
collect2: error: ld returned 1 exit status
make[2]: *** [build/csgo_external] Error 1
make[1]: *** [CMakeFiles/csgo_external.dir/all] Error 2
make: *** [all] Error 2
william@william-elementarylinux:~/csgohack$ ld -lX11 --verbose
GNU ld (GNU Binutils for Ubuntu) 2.24
Supported emulations:
elf_x86_64
elf32_x86_64
elf_i386
i386linux
elf_l1om
elf_k1om
i386pep
i386pe
using internal linker script:
==================================================
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OUTPUT_ARCH(i386:x86-64)
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==================================================
attempt to open /usr/x86_64-linux-gnu/lib64/libX11.so failed
attempt to open /usr/x86_64-linux-gnu/lib64/libX11.a failed
attempt to open //usr/local/lib/x86_64-linux-gnu/libX11.so failed
attempt to open //usr/local/lib/x86_64-linux-gnu/libX11.a failed
attempt to open //usr/local/lib64/libX11.so failed
attempt to open //usr/local/lib64/libX11.a failed
attempt to open //lib/x86_64-linux-gnu/libX11.so failed
attempt to open //lib/x86_64-linux-gnu/libX11.a failed
attempt to open //lib64/libX11.so failed
attempt to open //lib64/libX11.a failed
attempt to open //usr/lib/x86_64-linux-gnu/libX11.so succeeded
-lX11 (//usr/lib/x86_64-linux-gnu/libX11.so)
libxcb.so.1 needed by //usr/lib/x86_64-linux-gnu/libX11.so
found libxcb.so.1 at //usr/lib/x86_64-linux-gnu/libxcb.so.1
libdl.so.2 needed by //usr/lib/x86_64-linux-gnu/libX11.so
found libdl.so.2 at //lib/x86_64-linux-gnu/libdl.so.2
libc.so.6 needed by //usr/lib/x86_64-linux-gnu/libX11.so
found libc.so.6 at //lib/x86_64-linux-gnu/libc.so.6
libXau.so.6 needed by //usr/lib/x86_64-linux-gnu/libxcb.so.1
found libXau.so.6 at //usr/lib/x86_64-linux-gnu/libXau.so.6
libXdmcp.so.6 needed by //usr/lib/x86_64-linux-gnu/libxcb.so.1
found libXdmcp.so.6 at //usr/lib/x86_64-linux-gnu/libXdmcp.so.6
ld-linux-x86-64.so.2 needed by //lib/x86_64-linux-gnu/libdl.so.2
found ld-linux-x86-64.so.2 at //lib/x86_64-linux-gnu/ld-linux-x86-64.so.2
ld: warning: cannot find entry symbol _start; not setting start address
编辑：我看了https://github.com/laazyboy13/linux-csgo-external/issues/5和新的错误：
william@william-elementarylinux:~/csgohack$ sudo apt-get install libx11-dev:i386 libx11-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libdrm-dev libexpat1-dev libfontconfig1-dev libfreetype6-dev libice-dev
libjbig-dev libjpeg-dev libjpeg-turbo8-dev libjpeg8-dev liblzma-dev
libpng12-dev libsm-dev libtiff5-dev libtiffxx5 libvpx-dev libxcb-dri2-0-dev
libxcb-dri3-dev libxcb-glx0-dev libxcb-present-dev libxcb-randr0-dev
libxcb-render0-dev libxcb-shape0-dev libxcb-sync-dev libxcb-xfixes0-dev
libxshmfence-dev x11proto-damage-dev x11proto-dri2-dev x11proto-fixes-dev
x11proto-gl-dev x11proto-xext-dev x11proto-xf86vidmode-dev
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
libx11-dev libx11-dev:i386
0 upgraded, 2 newly installed, 0 to remove and 4 not upgraded.
Need to get 0 B/1,256 kB of archives.
After this operation, 5,020 kB of additional disk space will be used.
Selecting previously unselected package libx11-dev:amd64.
(Reading database ... 215279 files and directories currently installed.)
Preparing to unpack .../libx11-dev_2%3a1.6.2-1ubuntu2_amd64.deb ...
Unpacking libx11-dev:amd64 (2:1.6.2-1ubuntu2) ...
Selecting previously unselected package libx11-dev:i386.
Preparing to unpack .../libx11-dev_2%3a1.6.2-1ubuntu2_i386.deb ...
Unpacking libx11-dev:i386 (2:1.6.2-1ubuntu2) ...
Setting up libx11-dev:amd64 (2:1.6.2-1ubuntu2) ...
Setting up libx11-dev:i386 (2:1.6.2-1ubuntu2) ...
william@william-elementarylinux:~/csgohack$ make
Linking CXX executable build/csgo_external
CMakeFiles/csgo_external.dir/main.cpp.o: In function `main':
main.cpp:(.text+0x337): undefined reference to `XOpenDisplay'
main.cpp:(.text+0x37f): undefined reference to `XKeysymToKeycode'
main.cpp:(.text+0x3bb): undefined reference to `XGrabKey'
main.cpp:(.text+0x3d4): undefined reference to `XSelectInput'
main.cpp:(.text+0xc7a): undefined reference to `XNextEvent'
main.cpp:(.text+0xcca): undefined reference to `XUngrabKey'
main.cpp:(.text+0xd03): undefined reference to `XGrabKey'
main.cpp:(.text+0xd1c): undefined reference to `XSelectInput'
main.cpp:(.text+0xd2d): undefined reference to `XPending'
collect2: error: ld returned 1 exit status
make[2]: *** [build/csgo_external] Error 1
make[1]: *** [CMakeFiles/csgo_external.dir/all] Error 2
make: *** [all] Error 2
编辑2：
$ apt-cache policy libx11-dev
libx11-dev:
Installed: 2:1.6.2-1ubuntu2
Candidate: 2:1.6.2-1ubuntu2
Version table:
*** 2:1.6.2-1ubuntu2 0
500 http://nz.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status
$ strings /usr/lib/x86_64-linux-gnu/libX11.so | grep -P '^XOpenDisplay'
XOpenDisplay
EDIT3：我遵循了@xiaodongjie 的回答的步骤和 CMakeLists.txt 文件。我从第 15 次提交开始使用了 github.com/laazyboy13/linux-csgo-external。我将 linux-csgo-external-master/CMakeLists.txt 文件编辑为
cmake_minimum_required(VERSION 2.8.4)
project(csgo_external)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32 -std=c++11")
set(EXECUTABLE_OUTPUT_PATH ./build)
set(SOURCE_FILES log.cpp remote.cpp netvar.cpp hack.cpp main.cpp)
add_executable(csgo_external ${SOURCE_FILES})
target_link_libraries(csgo_external "-lX11")
然后跑cmake .了make
这是日志：
william@william-elementarylinux:~$ cd ~/linux-csgo-external-master/
william@william-elementarylinux:~/linux-csgo-external-master$ cmake .
-- The C compiler identification is GNU 4.9.3
-- The CXX compiler identification is GNU 4.9.3
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/william/linux-csgo-external-master
william@william-elementarylinux:~/linux-csgo-external-master$ make
Scanning dependencies of target csgo_external
[ 20%] Building CXX object CMakeFiles/csgo_external.dir/log.cpp.o
[ 40%] Building CXX object CMakeFiles/csgo_external.dir/remote.cpp.o
[ 60%] Building CXX object CMakeFiles/csgo_external.dir/netvar.cpp.o
[ 80%] Building CXX object CMakeFiles/csgo_external.dir/hack.cpp.o
[100%] Building CXX object CMakeFiles/csgo_external.dir/main.cpp.o
Linking CXX executable build/csgo_external
/usr/bin/ld: cannot find -lX11
collect2: error: ld returned 1 exit status
make[2]: *** [build/csgo_external] Error 1
make[1]: *** [CMakeFiles/csgo_external.dir/all] Error 2
make: *** [all] Error 2
william@william-elementarylinux:~/linux-csgo-external-master$
编辑4：使用 xiaodongjie 的步骤并重新安装解决libx11-dev:i386。
答案1
我也尝试过建造它。
所以我得到了同样的错误。我找到了发生此错误的原因。
-lX11不是cflag( compile flag)，它是一个链接标志。因此，此标志需要在 中，link flags而不是cflags。
https://cmake.org/cmake/help/v3.0/command/target_link_libraries.html
上面的页面描述了如何设置链接标志。所以我修改了 CMakeLists.txt，如下所示。
cmake_minimum_required(VERSION 2.8.4)
project(csgo_external)
#removed -lX11 from following line.
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32 -std=c++11")
set(EXECUTABLE_OUTPUT_PATH ./build)
set(SOURCE_FILES log.cpp remote.cpp netvar.cpp hack.cpp main.cpp)
add_executable(csgo_external ${SOURCE_FILES})
#appended following line.
target_link_libraries(csgo_external "-lX11")
libx11-dev:i386另外，请确保您有libx11-dev
答案2
笔记：该文件CMakeFiles/csgo_external.dir/link.txt由命令创建cmake .。一旦更改了此文件，cmake就不要再次运行该命令，否则您的更改将被覆盖。真正的问题在于CMakeLists.txt。因此，答案末尾有注释。
问题出CMakeFiles/csgo_external.dir/link.txt在运行之后cmake。-lX11必须在之后
[…] CMakeFiles/csgo_external.dir/main.cpp.o
或最后。
编辑文件CMakeFiles/csgo_external.dir/link.txt
nano CMakeFiles/csgo_external.dir/link.txt
并替换
/usr/bin/c++ -m32 -std=c++11 -lX11 CMakeFiles/csgo_external.dir/log.cpp.o CMakeFiles/csgo_external.dir/remote.cpp.o CMakeFiles/csgo_external.dir/netvar.cpp.o CMakeFiles/csgo_external.dir/hack.cpp.o CMakeFiles/csgo_external.dir/main.cpp.o -o build/csgo_external -rdynamic
和
/usr/bin/c++ -m32 -std=c++11 CMakeFiles/csgo_external.dir/log.cpp.o CMakeFiles/csgo_external.dir/remote.cpp.o CMakeFiles/csgo_external.dir/netvar.cpp.o CMakeFiles/csgo_external.dir/hack.cpp.o CMakeFiles/csgo_external.dir/main.cpp.o -o build/csgo_external -rdynamic -lX11
之后，联系开发人员。他们必须更改一些内容CMakeLists.txt。