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Auto merge of #30629 - brson:emscripten-upstream, r=alexcrichton

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Here's another go at adding emscripten support. This needs to wait again on new [libc definitions](https://github.com/rust-lang-nursery/libc/pull/122) landing. To get the libc definitions right I had to add support for i686-unknown-linux-musl, which are very similar to emscripten's, which are derived from arm/musl.

This branch additionally removes the makefile dependency on the `EMSCRIPTEN` environment variable by not building the unused compiler-rt.

Again, this is not sufficient for actually compiling to asmjs since it needs additional LLVM patches.

r? @alexcrichton
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bors 2016-02-06 21:18:50 +00:00
commit 8c604dc940
30 changed files with 319 additions and 32 deletions
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src/libstd/sys/unix/mod.rs
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@ -26,6 +26,7 @@ use ops::Neg;
#[cfg(target_os = "netbsd")] pub use os::netbsd as platform;
#[cfg(target_os = "openbsd")] pub use os::openbsd as platform;
#[cfg(target_os = "solaris")] pub use os::solaris as platform;
#[cfg(target_os = "emscripten")] pub use os::emscripten as platform;
#[macro_use]
pub mod weak;