Cargo Features

safer_ffi-proc_macro has no features set by default.

[dependencies]
safer_ffi-proc_macro = { version = "0.0.10", features = ["headers", "proc_macros", "verbose-expansions"] }
headers

Affects safer_ffi-proc_macro::cfg_headers

proc_macros = proc-macro-hack, proc-macro2, quote, syn

Affects derives::derive_ReprC

verbose-expansions

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

proc-macro2 proc_macros?
quote proc_macros?
syn proc_macros?

Enables syn ^1.0

proc-macro-hack proc_macros?