There are a number of options, ranging from specifying jemalloc in the linking command line of the makefile on an opt-in basis, to distributing jemalloc's source itself.
jemalloc improves dmd's run time by 15%. It's licensed via a BSD 4-clause license which specifically eliminates the dreaded binary attribution clause.
Comment #1 by robert.schadek — 2024-12-13T18:39:30Z