Hello,
Recently while building emacs from source in void-linux using musl libc,
the make program exits saying undefined reference to malloc_info.

Using git-bisect, i've found that the problem started with commit
621bb79b7044dcc277386eb7338c0eb1e08c29c7 `New debugging command
'malloc-info''
This commit was introduced in 2020 Nov 10

The problem is present in the HEAD as of 2021 Aug 11 with commit
244acc5a057b0d6ff03754af14d71808b6f20233 `Replace some `string-match-p'
calls in Tramp'

I beleive the problem exists because i'm using musl libc and not glibc.

Two build logs have been attached which were created using similar
technique:

git checkout -b first 621bb79b70
make 2&> ../make_emacs_621bb79

(the second log with commit 244acc5a).
These command was executed in bash.

For any additional information, i will try to reply with this email
address but since this one is unreliable at times, i hope that replying
through newsgroup is okay.