Add deprecation notices to `gcc 0.3.*`

Cargo.toml

@@ -7,6 +7,8 @@ license = "MIT/Apache-2.0"
 repository = "https://github.com/alexcrichton/gcc-rs"
 documentation = "https://docs.rs/gcc"
 description = """
+**Deprecated** crate, renamed to `cc`
+
 A build-time dependency for Cargo build scripts to assist in invoking the native
 C compiler to compile native C code into a static archive to be linked into Rust
 code.

README.md

@@ -1,5 +1,8 @@
 # gcc-rs
 
+> **NOTE**: This crate has been deprecated and is renamed to `cc`. It's
+> recommended to not use this crate and instead use `cc`
+
 A library to compile C/C++ code into a Rust library/application.
 
 [![Build Status](https://travis-ci.org/alexcrichton/gcc-rs.svg?branch=master)](https://travis-ci.org/alexcrichton/gcc-rs)

src/lib.rs

@@ -75,6 +75,7 @@ pub mod windows_registry;
 
 /// Extra configuration to pass to gcc.
 #[derive(Clone, Debug)]
+#[deprecated(note = "crate has been renamed to `cc`, the `gcc` name is not maintained")]
 pub struct Build {
     include_directories: Vec<PathBuf>,
     definitions: Vec<(String, Option<String>)>,
@@ -232,8 +233,8 @@ impl ToolFamily {
 /// ```no_run
 /// gcc::compile_library("foo", &["foo.c", "bar.c"]);
 /// ```
-#[deprecated]
 #[doc(hidden)]
+#[deprecated(note = "crate has been renamed to `cc`, the `gcc` name is not maintained")]
 pub fn compile_library(output: &str, files: &[&str]) {
     let mut c = Build::new();
     for f in files.iter() {
@@ -248,6 +249,7 @@ impl Build {
     /// This builder is finished with the [`compile`] function.
     ///
     /// [`compile`]: struct.Build.html#method.compile
+    #[deprecated(note = "crate has been renamed to `cc`, the `gcc` name is not maintained")]
     pub fn new() -> Build {
         Build {
             include_directories: Vec::new(),