upstream/mercurial-mirror Files · rust/.cargo/config.toml

rust-manifest: encode flags as `Option<NonZeroU8>`...

rust-manifest: encode flags as `Option<NonZeroU8>` This makes the compiler use the niche optimization for all flags: since 0 is not a valid representation of any flags, we can use 0 as a replacement for `None`, which reduces memory footprint and could yield a little performance improvement over many iterations.

Raphaël Gomès - - Load All Authors

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      # Rust builds with a modern MSVC and uses a newer CRT.

      # Python 2.7 has a shared library dependency on an older CRT (msvcr90.dll).

      # We statically link the modern CRT to avoid multiple msvcr*.dll libraries

      # being loaded and Python possibly picking up symbols from the newer runtime

      # (which would be loaded first).

      [target.'cfg(target_os = "windows")']

      rustflags = ["-Ctarget-feature=+crt-static"]

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				# Rust builds with a modern MSVC and uses a newer CRT.
				# Python 2.7 has a shared library dependency on an older CRT (msvcr90.dll).
				# We statically link the modern CRT to avoid multiple msvcr*.dll libraries
				# being loaded and Python possibly picking up symbols from the newer runtime
				# (which would be loaded first).
				[target.'cfg(target_os = "windows")']
				rustflags = ["-Ctarget-feature=+crt-static"]