Split cli feature

Author: termoshtt

intel-mkl-src/Cargo.toml

@@ -25,6 +25,7 @@ failure = "0.1"
 [build-dependencies.intel-mkl-tool]
 version = "0.1.0"
 path = "../intel-mkl-tool"
+default-features = false
 
 [dev-dependencies]
 libc = "0.2.65"

intel-mkl-tool/Cargo.toml

@@ -4,15 +4,24 @@ version = "0.1.0"
 authors = ["Toshiki Teramura <[email protected]>"]
 edition = "2018"
 
+[features]
+default = ["cli"]
+cli = ["structopt", "env_logger"]
+
 [dependencies]
 curl = "0.4.25"
 failure = "0.1.6"
 pkg-config = "0.3.17"
 tar = "0.4.26"
 xz2 = "0.1.6"
 log = "0.4.8"
+dirs = "*"
 
 # CLI
-structopt = "0.3.4"
-env_logger = "0.7.1"
-dirs = "*"
+structopt  = { version = "0.3.4", optional = true }
+env_logger = { version = "0.7.1", optional = true }
+
+[[bin]]
+name = "intel-mkl-tool"
+path = "src/cli.rs"
+required-features = ["cli"]