Cargo Features

[dependencies]
gmp-mpfr-sys = { version = "1.6.2", default-features = false, features = ["mpfr", "mpc", "force-cross", "c-no-tests", "cnodelete"] }
default = mpc, mpfr

These default features are set whenever gmp-mpfr-sys is added without default-features = false somewhere in the dependency tree.

mpfr default mpc

Affects gmp-mpfr-sys::mpfr

mpc default = mpfr

Affects gmp-mpfr-sys::mpc

use-system-libs fail-on-warnings force-cross
c-no-tests
cnodelete

With the cnodelete feature, C build artefacts are not deleted.