rustdoc: Fix a couple of issues with src links to external crates

- src links/redirects to extern fn from another crate had an extra '/'.
- src links to `pub use` of a crate module had an extra '/'.
- src links to renamed reexports from another crate used the new name
  for the link but should use the original name.

4 files changed, 66 insertions, 0 deletions

diff --git a/src/test/rustdoc/auxiliary/issue-34274.rs b/src/test/rustdoc/auxiliary/issue-34274.rs
new file mode 100644
index 00000000000..72026b60856
--- /dev/null
+++ b/src/test/rustdoc/auxiliary/issue-34274.rs
@@ -0,0 +1,13 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+extern {
+    pub fn extern_c_fn();
+}
diff --git a/src/test/rustdoc/auxiliary/src-links-external.rs b/src/test/rustdoc/auxiliary/src-links-external.rs
new file mode 100644
index 00000000000..94b7278e990
--- /dev/null
+++ b/src/test/rustdoc/auxiliary/src-links-external.rs
@@ -0,0 +1,11 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+pub struct Foo;
diff --git a/src/test/rustdoc/issue-34274.rs b/src/test/rustdoc/issue-34274.rs
new file mode 100644
index 00000000000..971c89b1619
--- /dev/null
+++ b/src/test/rustdoc/issue-34274.rs
@@ -0,0 +1,20 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// aux-build:issue-34274.rs
+// build-aux-docs
+// ignore-cross-compile
+
+#![crate_name = "foo"]
+
+extern crate issue_34274;
+
+// @has foo/fn.extern_c_fn.html '//a/@href' '../issue_34274/fn.extern_c_fn.html?gotosrc='
+pub use issue_34274::extern_c_fn;
diff --git a/src/test/rustdoc/src-links-external.rs b/src/test/rustdoc/src-links-external.rs
new file mode 100644
index 00000000000..e9db4f519ed
--- /dev/null
+++ b/src/test/rustdoc/src-links-external.rs
@@ -0,0 +1,22 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// aux-build:src-links-external.rs
+// build-aux-docs
+// ignore-cross-compile
+
+#![crate_name = "foo"]
+
+extern crate src_links_external;
+
+// @has foo/bar/index.html '//a/@href' '../src_links_external/index.html?gotosrc='
+pub use src_links_external as bar;
+
+// @has foo/bar/struct.Foo.html '//a/@href' '../src_links_external/struct.Foo.html?gotosrc='