使用zig作为rust的linker

背景

glibc的动态链接库存在版本问题

./hello: /lib64/libc.so.6: version GLIBC_2.28' not found (required by ./hello) ./hello: /lib64/libc.so.6: version GLIBC_2.33’ not found (required by ./hello)
./hello: /lib64/libc.so.6: version GLIBC_2.18' not found (required by ./hello) ./hello: /lib64/libc.so.6: version GLIBC_2.32’ not found (required by ./hello)
./hello: /lib64/libc.so.6: version `GLIBC_2.34’ not found (required by ./hello)

我们可以使用zig作为rust的linker使程序链接到低版本的glibc

方法

1. 安装zig。下载并解压，设置好PATH
2. cargo install --locked cargo-zigbuild
3. cargo zigbuild --release --target=x86_64-unknown-linux-gnu.2.17

这样就能正常链接，并在低版本的glic系统上运行了。

$ ./hello 
Hello, world!