prevent travis from building with features that are not available

2 files changed, 4 insertions, 5 deletions

diff --git a/src/database.rs b/src/database.rs
index 34fe4fd..a597b2d 100644
--- a/src/database.rs
+++ b/src/database.rs
@@ -1,7 +1,7 @@
 use std::ops::Drop;
 use std::ptr;
 use std::path::Path;
-use std::ffi::CString;
+use std::ffi::{CStr, CString};
 
 use libc;
 
@@ -124,7 +124,7 @@ impl Database {
         })
     }
 
-    #[cfg(feature = "0.21")]
+    #[cfg(feature = "v0_21")]
     pub fn revision(&self) -> Revision {
         let uuid_p: *const libc::c_char = ptr::null();
         let revision = unsafe {
diff --git a/src/message.rs b/src/message.rs
index c3b100f..d28257c 100644
--- a/src/message.rs
+++ b/src/message.rs
@@ -45,9 +45,8 @@ impl<'q, 'd> Message<'q, 'd>{
         })
     }
 
-    #[cfg(feature = "0.26")]
-    pub fn count_files(self: &Self) -> i32
-    {
+    #[cfg(feature = "v0_26")]
+    pub fn count_files(self: &Self) -> i32{
         unsafe {
             ffi::notmuch_message_count_files(self.0)
         }