Having seen compiling-to-the-web-with-rust-and-emscripten I decided to hack a little game in Rust. I've installed rustc 1.15.0-nightly (1c448574b 2016-11-28) and have done another preparation steps from the link above. Having that done I was able to run my Rust code in the browser. Then I tried to add rust-sdl2 crate and write something more related to computer games. But it doesn't look like a working joint for now. cargo build --target asmjs-unknown-emscripten gives me the next error:
error: linking with `emcc` failed: exit code: 1
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= note: "emcc" "-L" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/gwar-4bbeb8b6e0396b50.0.o" "-o" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/gwar-4bbeb8b6e0396b50.js" "-Wl,--gc-sections" "-nodefaultlibs" "-L" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps" "-L" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib" "-Wl,-Bstatic" "-Wl,-Bdynamic" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/libsdl2-a3439967d6cd896a.rlib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/libsdl2_sys-6a6cdeed38de6269.rlib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/liblazy_static-5e13a0eed191ed30.rlib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/librand-35167bebb3b301e7.rlib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/liblibc-09f884e06faabf22.rlib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/libnum-351b1cddc85503c1.rlib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/libnum_iter-618824a5957aaa8f.rlib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/libnum_integer-9eb11829964f3c6e.rlib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/libnum_traits-b3505e86c388a8aa.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/libstd-17342542cc541012.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/libpanic_unwind-f78756b576499725.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/libunwind-11f7709e0c71505b.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/librand-46ed9b788a6928f6.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/libcollections-e32369d7fef31fbf.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/liballoc-24699c1ddb055eb0.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/librustc_unicode-844a33a197b559a5.rlib" "/Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/libbitflags-da52b57722b7b0f5.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/liballoc_system-3e467e865c8fa572.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/liblibc-60365c932e50e382.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/libcore-d9873b515905cac5.rlib" "/Users/hoster/.multirust/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/asmjs-unknown-emscripten/lib/libcompiler_builtins-e428224f6caf212a.rlib" "-l" "SDL2" "-l" "c" "-s" "ERROR_ON_UNDEFINED_SYMBOLS=1"
= note: WARNING:root:emcc: cannot find library "SDL2"
And then a lot of lines like this:
/Users/hoster/emsdk_portable/clang/fastcomp/build_incoming_64/bin/llvm-nm: /Users/hoster/projects/gwar/target/asmjs-unknown-emscripten/debug/deps/libsdl2-a3439967d6cd896a.rlib(rust.metadata.bin) The end of the file was unexpectedly encountered
I removed -l SDL2 part, added -s USE_SDL=2 and ran emcc after cargo build manually. Eventually it gave me a JavaScript output which I was able to run on my HTML page. However, almost all examples from here just hang a web page.
Is it possible at this moment to run SDL2 + Rust + emscripten bundle?