"Uniform prefixing" across platforms

[inducer]

I'm in a situation where I would like to use jemalloc as an "alternate"/"additional" allocator, while not overriding the system allocator. Given the package in its current state, that's hard, because on macOS, malloc will not be overridden, while on Linux, it will. Would you be open to adding an additional (conda) output to this package that has the je_ prefix across all platforms? If so, I'd be happy to try my hand at it in a PR.

cc @matthiasdiener @lukeolson

[xhochy]

@inducer Sounds like a good idea, you probably could also introduce this directly in the build matrix through an entry in conda_build_config.yaml .