Rollup of 8 pull requests

configure

@@ -863,11 +863,6 @@ then
     CFG_DISABLE_JEMALLOC=1
 fi
 
-if [ -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
-then
-    err "either clang or gcc is required"
-fi
-
 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
 # system, so if we find that gcc is clang, we should just use clang directly.
 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]

man/rustc.1

@@ -1,4 +1,4 @@
-.TH RUSTC "1" "March 2014" "rustc 0.13.0" "User Commands"
+.TH RUSTC "1" "August 2015" "rustc 1.2.0" "User Commands"
 .SH NAME
 rustc \- The Rust compiler
 .SH SYNOPSIS
@@ -160,7 +160,7 @@ If the value is 'help', then a list of available CPUs is printed.
 \fBtarget\-feature\fR='\fI+feature1\fR,\fI\-feature2\fR'
 A comma\[hy]separated list of features to enable or disable for the target.
 A preceding '+' enables a feature while a preceding '\-' disables it.
-Available features can be discovered through \fItarget\-cpu=help\fR.
+Available features can be discovered through \fIllc -mcpu=help\fR.
 .TP
 \fBpasses\fR=\fIval\fR
 A space\[hy]separated list of extra LLVM passes to run.

man/rustdoc.1

@@ -1,4 +1,4 @@
-.TH RUSTDOC "1" "March 2014" "rustdoc 0.13.0" "User Commands"
+.TH RUSTDOC "1" "August 2015" "rustdoc 1.2.0" "User Commands"
 .SH NAME
 rustdoc \- generate documentation from Rust source code
 .SH SYNOPSIS

src/libcore/cell.rs

@@ -212,7 +212,7 @@ impl<T:Copy> Cell<T> {
         }
     }
 
-    /// Gets a reference to the underlying `UnsafeCell`.
+    /// Returns a reference to the underlying `UnsafeCell`.
     ///
     /// # Unsafety
     ///
@@ -439,7 +439,7 @@ impl<T: ?Sized> RefCell<T> {
         }
     }
 
-    /// Gets a reference to the underlying `UnsafeCell`.
+    /// Returns a reference to the underlying `UnsafeCell`.
     ///
     /// This can be used to circumvent `RefCell`'s safety checks.
     ///
@@ -671,8 +671,8 @@ impl<T> UnsafeCell<T> {
     ///
     /// # Unsafety
     ///
-    /// This function is unsafe because there is no guarantee that this or other threads are
-    /// currently inspecting the inner value.
+    /// This function is unsafe because this thread or another thread may currently be
+    /// inspecting the inner value.
     ///
     /// # Examples
     ///

src/librustc_trans/back/link.rs

@@ -279,7 +279,7 @@ pub fn sanitize(s: &str) -> String {
 }
 
 pub fn mangle<PI: Iterator<Item=PathElem>>(path: PI,
-                                      hash: Option<&str>) -> String {
+                                           hash: Option<&str>) -> String {
     // Follow C++ namespace-mangling style, see
     // http://en.wikipedia.org/wiki/Name_mangling for more info.
     //

src/librustc_trans/back/write.rs

@@ -342,8 +342,8 @@ struct HandlerFreeVars<'a> {
 }
 
 unsafe extern "C" fn report_inline_asm<'a, 'b>(cgcx: &'a CodegenContext<'a>,
-                                           msg: &'b str,
-                                           cookie: c_uint) {
+                                               msg: &'b str,
+                                               cookie: c_uint) {
     use syntax::codemap::ExpnId;
 
     match cgcx.lto_ctxt {

src/libstd/env.rs

@@ -598,40 +598,94 @@ pub fn page_size() -> usize {
 pub mod consts {
     /// A string describing the architecture of the CPU that this is currently
     /// in use.
+    ///
+    /// Some possible values:
+    ///
+    /// - x86
+    /// - x86_64
+    /// - arm
+    /// - aarch64
+    /// - mips
+    /// - mipsel
+    /// - powerpc
     #[stable(feature = "env", since = "1.0.0")]
     pub const ARCH: &'static str = super::arch::ARCH;
 
     /// The family of the operating system. In this case, `unix`.
+    ///
+    /// Some possible values:
+    ///
+    /// - unix
+    /// - windows
     #[stable(feature = "env", since = "1.0.0")]
     pub const FAMILY: &'static str = super::os::FAMILY;
 
     /// A string describing the specific operating system in use: in this
     /// case, `linux`.
+    ///
+    /// Some possible values:
+    ///
+    /// - linux
+    /// - macos
+    /// - ios
+    /// - freebsd
+    /// - dragonfly
+    /// - bitrig
+    /// - openbsd
+    /// - android
+    /// - windows
     #[stable(feature = "env", since = "1.0.0")]
     pub const OS: &'static str = super::os::OS;
 
     /// Specifies the filename prefix used for shared libraries on this
     /// platform: in this case, `lib`.
+    ///
+    /// Some possible values:
+    ///
+    /// - lib
+    /// - `""` (an empty string)
     #[stable(feature = "env", since = "1.0.0")]
     pub const DLL_PREFIX: &'static str = super::os::DLL_PREFIX;
 
     /// Specifies the filename suffix used for shared libraries on this
     /// platform: in this case, `.so`.
+    ///
+    /// Some possible values:
+    ///
+    /// - .so
+    /// - .dylib
+    /// - .dll
     #[stable(feature = "env", since = "1.0.0")]
     pub const DLL_SUFFIX: &'static str = super::os::DLL_SUFFIX;
 
     /// Specifies the file extension used for shared libraries on this
     /// platform that goes after the dot: in this case, `so`.
+    ///
+    /// Some possible values:
+    ///
+    /// - .so
+    /// - .dylib
+    /// - .dll
     #[stable(feature = "env", since = "1.0.0")]
     pub const DLL_EXTENSION: &'static str = super::os::DLL_EXTENSION;
 
     /// Specifies the filename suffix used for executable binaries on this
     /// platform: in this case, the empty string.
+    ///
+    /// Some possible values:
+    ///
+    /// - exe
+    /// - `""` (an empty string)
     #[stable(feature = "env", since = "1.0.0")]
     pub const EXE_SUFFIX: &'static str = super::os::EXE_SUFFIX;
 
     /// Specifies the file extension, if any, used for executable binaries
     /// on this platform: in this case, the empty string.
+    ///
+    /// Some possible values:
+    ///
+    /// - exe
+    /// - `""` (an empty string)
     #[stable(feature = "env", since = "1.0.0")]
     pub const EXE_EXTENSION: &'static str = super::os::EXE_EXTENSION;
 

src/libstd/fs.rs

@@ -844,6 +844,8 @@ pub fn symlink_metadata<P: AsRef<Path>>(path: P) -> io::Result<Metadata> {
 
 /// Rename a file or directory to a new name.
 ///
+/// This will not work if the new name is on a different mount point.
+///
 /// # Errors
 ///
 /// This function will return an error if the provided `from` doesn't exist, if

src/test/compile-fail/asm-src-loc-codegen-units.rs

@@ -8,7 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 //
-// ignore-stage1 (#20184)
+// WONTFIX(#20184) Needs landing pads (not present in stage1) or the compiler hangs.
+// ignore-stage1
 // compile-flags: -C codegen-units=2
 // error-pattern: build without -C codegen-units for more exact errors