feature gate named-entities (making phf optional)

1 files changed, 6 insertions, 5 deletions

diff --git a/build.rs b/build.rs
index 8d4404c..d41934c 100644
--- a/build.rs
+++ b/build.rs
@@ -7,20 +7,21 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#[cfg(feature = "named-entities")]
 extern crate phf_codegen;
 
-use std::collections::HashMap;
-use std::env;
-use std::fs::File;
-use std::io::Write;
-use std::path::Path;
+#[cfg(feature = "named-entities")]
+use {std::collections::HashMap, std::env, std::fs::File, std::io::Write, std::path::Path};
 
+#[cfg(feature = "named-entities")]
 mod entities;
 
 fn main() {
+    #[cfg(feature = "named-entities")]
     named_entities_to_phf(&Path::new(&env::var("OUT_DIR").unwrap()).join("named_entities.rs"));
 }
 
+#[cfg(feature = "named-entities")]
 fn named_entities_to_phf(to: &Path) {
     let mut entities: HashMap<&str, (u32, u32)> = entities::NAMED_ENTITIES
         .iter()