Add a new std feature for enumset. Fixes #34

[enumset.git] / enumset_derive / Cargo.toml

diff --git a/enumset_derive/Cargo.toml b/enumset_derive/Cargo.toml
index 882b742d5ec15f765dce78b44cfe95eeaa4629d0..def3be15be1be1563363b6fa16473b8a6ebc5c1f 100644 (file)
--- a/enumset_derive/Cargo.toml
+++ b/enumset_derive/Cargo.toml
@@ -22,4 +22,4 @@ darling = { version = "0.13.0", default-features = false }
 syn = "1"
 quote = "1"
 proc-macro2 = "1"
-proc-macro-crate = "1.1.3"
+proc-macro-crate = { version = "1.1.3", optional = true }