[CentOS-devel] compiling on EL 7.x, using -fsanitize=xxx

Hi all!

Using Centos-7, I'm trying to build a C-language app using -fsanitize=address, or -fsanitize=thread.

If I compile (and link) with -fsanitize=address when it tries to link it complains of missing libasan.so.x.x.x. Similarly compiling with -fsanitize=thread, it complains of a missing libtsan.so.x.x.x.

I can't figure out where one is supposed to find those libraries. they don't appear to be part of the GCC packages, and doing yum whatprovides */libasan.so or yum whatprovides */libtsan.so turns up nothing.

Clues appreciated, thanks in advance!

Fred