Rémi Verschelde c2c659db32 SCons: Refactor LTO options with lto=<none|thin|full> ...

Adds support for LTO on macOS and Android. We don't have much experience
with LTO on these platforms so for now we keep it disabled by default
even when `production=yes` is set.

Similarly for iOS where we ship object files for the user to link in
Xcode so LTO makes builds extremely slow to link.

`production=yes` defaults to full LTO.
ThinLTO is much faster for LLVM-based compilers but seems to produce
bigger binaries (at least for the Web platform).

2022-09-08 10:00:02 +02:00

16 KiB

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