在运行Build的时候，进入infinity loop

[0xLukelll]

你好，作者。我试图在Ubuntu 20.04上安装Wukong，但我一直遇到以下问题：
-- The C compiler identification is GNU 9.4.0
-- The CXX compiler identification is GNU 9.4.0
-- 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
-- Detecting C compile features
-- Detecting C compile features - 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
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found PythonInterp: /usr/bin/python (found version "2.7.18")
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
-- Configuring done
You have changed variables that require your cache to be deleted.
Configure will be re-run and you may have to reset some variables.
The following variables have changed:
CMAKE_CXX_COMPILER= /usr/bin/c++
CMAKE_CXX_COMPILER= /usr/bin/c++
CMAKE_CXX_COMPILER= /usr/bin/c++

build.sh脚本似乎进入了一个循环，尽管我尝试了多次，结果仍然相同。我已经阅读了你对其他人的建议，并尝试使用最新的仓库进行安装，但我发现安装指南已经过时，缺少了许多依赖项。请问我该如何解决这个bug，或者你有没有更全面的安装指南？非常感谢。

[Bessss-zyw]

同学你好，你的问题可能是因为在运行build.sh脚本前先没有清理掉CMAKE的cache，所以你可以试试在运行该脚本前将build/目录删除

[Luke5256065]

同学你好，你的问题可能是因为在运行build.sh脚本前先没有清理掉CMAKE的cache，所以你可以试试在运行该脚本前将build/目录删除

感谢你的回复，我删除build目录后运行build.sh脚本还遇到了相同的问题， 请问还有别的解决方案嘛？

[Bessss-zyw]

检查一下openmpi是否安装在了正确的路径，在正常build的时候Check for working CXX compiler: 后面的输出应该是${WUKONG_ROOT}/deps/openmpi-1.6.5-install/bin/mpic++，而非/usr/bin/c++。