Can I pass additional flags when building benchmark?

[kkebo]

I often use LTO with swift bulid --experimental-lto-mode=full -Xswiftc -experimental-hermetic-seal-at-link.

Can I pass these flags to swift-build when running swift package benchmark? If so, how do I do?

[hassila]

I think just adding them to your binary target in Package.swift should do what you want - did you try it?

[kkebo]

I think just adding them to your binary target in Package.swift should do what you want - did you try it?

Only the swiftc flags can be passed in Package.swift, not the swift-build flags.

[kkebo]

To illustrate with the example given in my first comment, -experimental-hermetic-seal-at-link is a flag of swiftc and --experimental-lto-mode=full is a flag of swift-build.

[hassila]

Ah. Good question, will need to investigate if there's support in the swiftpm api for specifying this for builds, as that's what we're using to build the targets...