build,cares,openssl,zlib: limit symbol exports

[bnoordhuis]

Refs: #4932 #6274

On Windows, Node exports a curated list of symbols from its dependencies that don't use dllimport/dllexport (c-ares, openssl, zlib)

On Unices, Node indiscriminately re-exports everything thanks to -Wl,--whole-archive.

There's a comment about it in node.gyp:

# TODO(bnoordhuis) Make all platforms export the same list of symbols.
# Teach mkssldef.py to generate linker maps that UNIX linkers understand.

It would be good to implement that. It should help trim down the binary size.

[sam-github]

/cc @nicolasnoble

[bnoordhuis]

nodejs/node-gyp#1755 points out that symbols from deps/histogram are also exported (and conflict with symbols from an add-on.)

[jasnell]

@bnoordhuis ... what's left here to do?

[github-actions]

This issue has been marked as stale due to 210 days of inactivity.
It will be automatically closed in 30 days if no further activity occurs. If this is still relevant, please leave a comment or update it to keep it open.

[github-actions]

This issue has been automatically closed after 30 days of inactivity following its stale status (no activity for a total of 120 days).
If this is still relevant, feel free to reopen it or leave a comment with additional details so we can continue the discussion.