Describe the bug
SUBJ. This include path has been deprecated for > 10 years now. We're shipping gperftools/tcmalloc.h.
Also from quick inspection I see that you don't really need headers anyways. So consider not even bothering to locate it.
(How do I find it? I just github-searched for google/tcmalloc.h usages that aren't clearly dead; yours is first I found so far)