make mycelium optional

1 files changed, 7 insertions, 2 deletions

diff --git a/Cargo.toml b/Cargo.toml
index db5503d..45ae47c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,8 +3,13 @@ name = "continuum"
 version = "1.0.0"
 edition = "2024"
 
+# The transports are features, none of them default: a build has those it names, at
+# least one (`--features mycelium`, `--features libp2p,tor`, ...).
 [features]
 tokio-console = ["dep:console-subscriber"]
+# The Mycelium transport (`--transports mycelium`, the default where built): through a
+# Mycelium daemon's API, one it supervises or one running elsewhere.
+mycelium = ["dep:reqwest", "dep:libc"]
 # The libp2p transport (`--transports libp2p`).
 libp2p = ["dep:libp2p", "dep:libp2p-stream", "dep:futures"]
 # The Tor transport (`--transports tor`): onion services, with arti.
@@ -44,9 +49,9 @@ libp2p = { version = "0.57", optional = true, features = ["tokio", "tcp", "quic"
 libp2p-stream = { version = "0.5.0-alpha", optional = true }
 ed25519-dalek = "3"
 getrandom = "0.4"
-libc = "0.2"
+libc = { version = "0.2", optional = true }
 password-hash = "0.6"
-reqwest = { version = "0.13", features = ["json", "query"] }
+reqwest = { version = "0.13", optional = true, features = ["json", "query"] }
 rmp-serde = "1.3"
 serde = { version = "1.0", features = ["derive"] }
 serde_bytes = "0.11"