New comment by ndowens on void-packages repository

https://github.com/void-linux/void-packages/pull/18045#issuecomment-572170584

Comment:
Ok, I set LIBS = to LIBS += in Makefile and added LIBS="-lexecinfo" but that does not add -lexecinfo into LIBS in Makefile

Also tried doing make_build_args="LIBS=lexecinfo" and that caused way more link errors, as that overwrote the LIBS.

@pullmoll Ok the only other way I know to do this, is to add pkg-config file for libexecinfo(which might be beneficial later on for other pkgs)