使用LLVM构建Coreutils期间，C编译器无法创建可执行文件 [英] C compiler cannot create executables during build of Coreutils with LLVM

问题描述

我正在寻找帮助，以解决在使用llvm的Coreutils的configure命令期间弹出的错误的解决方案.

I am looking for some assistance in figuring out the solution to an error that pops up during the configure command of Coreutils with llvm.

我使用以下命令:

CC = wllvm ../configure --disable-nls CFLAGS =-g -O1 -Xclang -disable-llvm-passes -D__NO_STRING_INLINES -D_FORTIFY_SOURCE = 0 -U__OPTIMIZE __"

并收到错误:

checking whether the compiler works...no
configure: error: in '/home/abhinath/coreutils/obj-llvm
configure: error: c compiler cannot create executables

我已经预先运行了 export LLVM_COMPILER = clang 命令

我已经使用命令在Ubuntu OS上安装并设置了 clang-6.0 和 clang ++-6.0

I have installed and set up clang-6.0 and clang++-6.0 on my Ubuntu OS using the commands

sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-6.0 1000
sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-6.0 1000
sudo update-alternatives --config clang
sudo update-alternatives --config clang++

在这里可以查看生成错误的config.log文件，该文件还显示 wllvm:找不到命令:

The config.log file with errors generated can be viewed here, which also shows wllvm: command not found:

https://drive.google.com/open?id=1ExbLhT2tWRyGSAb67mAgu6D9y3AknZ2

推荐答案

通常，系统目录中不包含/usr/local 中的任何内容.

Typically, nothing in /usr/local is included in the system directories.

非标准位置(例如 usr/local/lib/python2.7/site-packages/some-directory )更是如此.

And a non-standard location like usr/local/lib/python2.7/site-packages/some-directory even less so.

您需要找到 wllvm 程序的确切位置(在完整路径和绝对路径中)，然后使用该完整路径或将其目录添加到 PATH 环境变量.

You need to find the exact location (as in full and absolute path) of the wllvm program and either use that full path or add its directory to the PATH environment variable.

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