Cargo Features

[dependencies]
objc2-exception-helper = { version = "0.1.1", default-features = false, features = ["std", "alloc", "gnustep-1-7", "gnustep-1-8", "gnustep-1-9", "gnustep-2-0", "gnustep-2-1"] }
default = std

The std feature is set by default whenever objc2-exception-helper is added without default-features = false somewhere in the dependency tree.

std default = alloc
alloc std
gnustep-1-7 gnustep-1-8?

Compile for GNUStep's libobjc2

gnustep-1-8 gnustep-1-9? = gnustep-1-7
gnustep-1-9 gnustep-2-0? = gnustep-1-8
gnustep-2-0 gnustep-2-1? = gnustep-1-9
gnustep-2-1 = gnustep-2-0