remove additional redundant "press any key to exit"

Cargo.toml

@@ -67,3 +67,8 @@ test = false # no unit tests
 name = "elan-init"
 path = "src/elan-cli/main.rs"
 test = false # no unit tests
+
+[[bin]]
+name = "elan"
+path = "src/elan-cli/main.rs"
+test = false # no unit tests

README.md

@@ -74,6 +74,29 @@ On some systems, `lean`/`leanpkg` will not work out of the box even if installed
 *elan* is basically a fork of [rustup](https://github.com/rust-lang-nursery/rustup.rs). Apart from new features and adaptions to the Lean infrastructure, these are the basic changes to the original code:
 
 * Replaced every mention of `rustup` with `elan`, `cargo` with `leanpkg`, and `rust(c)` with `lean`
-* Removed Windows installer... for now?
 * Merged `CARGO_HOME` and `RUSTUP_HOME`
 * Removed options to configure host triple
+
+# Build
+
+If you want to build elan from source, you will need to install [Rust](https://www.rust-lang.org/tools/install) and
+Cargo and run the following:
+
+```
+cargo build
+```
+
+The built binaries will show up in `target/debug` folder.  You can test that it works by running the following:
+
+```
+./target/debug/elan --help
+```
+
+# Build on Windows
+
+The windows build requires a 64bit developer command prompt and a windows version of `perl.exe` which you can download
+from [https://strawberryperl.com/](https://strawberryperl.com/). Make sure this downloaded perl.exe is the first thing
+in your PATH so that the build does not try and use `c:\Program Files\Git\usr\bin\perl.exe`. The git provided version of
+perl doesn't work for some reason.
+
+Then you can run `cargo build` as shown above.

src/elan-cli/elan_mode.rs

@@ -209,7 +209,7 @@ pub fn cli() -> App<'static, 'static> {
                  .help("Standard library API documentation"))
             .group(ArgGroup::with_name("page")
                  .args(&["book", "std"])))*/;
-    
+
     /*if cfg!(not(target_os = "windows")) {
         app = app
             .subcommand(SubCommand::with_name("man")
@@ -221,7 +221,7 @@ pub fn cli() -> App<'static, 'static> {
                          .long("toolchain")
                          .takes_value(true)));
     }*/
-    
+
     app.subcommand(SubCommand::with_name("self")
         .about("Modify the elan installation")
         .setting(AppSettings::VersionlessSubcommands)

src/elan-cli/self_update.rs

@@ -245,16 +245,6 @@ pub fn install(no_prompt: bool, verbose: bool,
     if let Err(ref e) = install_res {
         common::report_error(e);
 
-        // On windows, where installation happens in a console
-        // that may have opened just for this purpose, give
-        // the user an opportunity to see the error before the
-        // window closes.
-        if cfg!(windows) && !no_prompt {
-            println!("");
-            println!("Press the Enter key to continue.");
-            try!(common::read_line());
-        }
-
         process::exit(1);
     }
 
@@ -729,7 +719,6 @@ fn delete_elan_and_elan_home() -> Result<()> {
     use winapi::shared::minwindef::DWORD;
     use std::os::windows::ffi::OsStrExt;
     use std::ptr;
-    use std::io;
     use std::mem;
 
     unsafe {