dlmalloc, Doug Lea's memory allocator, version 2.8.6. It is part of
web\core.js, which Emscripten 6.0.12 compiled and linked; its dedication to
the public domain, as Emscripten's system/lib/dlmalloc.c carries it,
follows.

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This is a version (aka dlmalloc) of malloc/free/realloc written by
 Doug Lea and released to the public domain, as explained at
 http://creativecommons.org/publicdomain/zero/1.0/ Send questions,
 comments, complaints, performance data, etc to dl@cs.oswego.edu
 
 * Version 2.8.6 Wed Aug 29 06:57:58 2012  Doug Lea