prevent travis from building with features that are not available

4 files changed, 13 insertions, 5 deletions

diff --git a/.travis.yml b/.travis.yml
index 67e3a01..ab21b0a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,3 +9,7 @@ addons:
   apt:
     packages:
     - libnotmuch-dev
+
+script:
+  - cargo build --no-default-features --verbose --all
+  - cargo test --no-default-features --verbose --all
diff --git a/Cargo.toml b/Cargo.toml
index d846862..401d553 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,6 +15,11 @@ travis-ci = { repository = "vhdirk/notmuch-rs" }
 libc = "0.2"
 clippy = { version = "0.0.193", optional = true }
 
+[features]
+v0_21 = []
+v0_26 = ["v0_21"]
+default = ["v0_26"]
+
 
 [[test]]
 name = "main"
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)
         }