question about linked library of linuxbrew's executable file

[hei-threebody]

I am wondering why the dynamic library of linuxbrew's installed executable file will not change with the LD_LIBRARY_PATH. There are some command line tools in my system that will broken when the old lidstdc++ library is added to LD_LIBRARY_PATH. However, the tools installed with linuxbrew are never broken.

I look into the rpath which chrpath and patchelf, but cannot make my broken command line tools work as the linuxbrew's ones. Dose any one know which magic linuxbrew is using?

[SMillerDev]

@Homebrew/linux will know this

[sjackman]

RPATH is searched before LD_LIBRARY_PATH is searched before RUNPATH.
See https://amir.rachum.com/blog/2016/09/17/shared-libraries/
Homebrew on Linux uses patchelf --force-rpath --set-rpath=… to use RPATH rather than the default RUNPATH.
Note that RPATH predates the creation of RUNPATH.