I'm trying to get started on yew, and encountered the "emscripten" not-found error. These are the instructions provided in the error message:
You can install it manually like this:
curl -O https://s3.amazonaws.com/mozilla-games/emscripten/releases/emsdk-portable.tar.gz
tar -xzf emsdk-portable.tar.gz
source emsdk-portable/emsdk_env.sh
emsdk update
emsdk install sdk-incoming-64bit
emsdk activate sdk-incoming-64bit
I followed and re-executed "./ci/run_tests.sh" again and it stills fails with the same problem.
Computer:yew-master ikevin$ ./ci/run_tests.sh
Is Rust from nightly: 0
Testing for asmjs-unknown-emscripten...
error: you don't have Emscripten installed!
= note: Undefined symbols for architecture x86_64:
"_emscripten_pause_main_loop", referenced from:
stdweb::webcore::ffi::emscripten::event_loop::h64e93327dc1e0ece in libstdweb-94b0c136d99d231e.rlib(stdweb-94b0c136d99d231e.stdweb.9583r305-cgu.7.rcgu.o)
"_emscripten_set_main_loop", referenced from:
stdweb::webcore::ffi::emscripten::event_loop::h64e93327dc1e0ece in libstdweb-94b0c136d99d231e.rlib(stdweb-94b0c136d99d231e.stdweb.9583r305-cgu.7.rcgu.o)
"_emscripten_asm_const_int", referenced from:
_$LT$stdweb..webapi..events..dom..ChangeEvent$u20$as$u20$stdweb..webcore..instance_of..InstanceOf$GT$::instance_of::snippet::__cargo_web_snippet_ec28a01a0e33da46726388bff28c564a3ae5afa3::ha1a1d2c83d442d37 in libstdweb-94b0c136d99d231e.rlib(stdweb-94b0c136d99d231e.stdweb.9583r305-cgu.6.rcgu.o)
_$LT$stdweb..webapi..events..dom..InputEvent$u20$as$u20$stdweb..webcore..instance_of..InstanceOf$GT$::instance_of::snippet::__cargo_web_snippet_513cc5b95412492d529556ccd01ecd4a671a4df8::h2941babcb4a87322 in libstdweb-94b0c136d99d231e.rlib(stdweb-94b0c136d99d231e.stdweb.9583r305-cgu.6.rcgu.o)
_$LT$yew..html..listener..onchange..Wrapper$LT$T$GT$$u20$as$u20$yew..virtual_dom..Listener$LT$COMP$GT$$GT$::attach::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::snippet::__cargo_web_snippet_cbb54466a17480e2aa3c55a350ddc2f54eb42f54::h64abe990e0e6abd0 in libyew-00107873c13aa156.rlib(yew-00107873c13aa156.5ae278aj12883kll.rcgu.o)
_$LT$stdweb..webapi..html_elements..select..SelectElement$u20$as$u20$stdweb..webcore..instance_of..InstanceOf$GT$::instance_of::snippet::__cargo_web_snippet_96019afc94417ba3716a0fc16a6f6bb0b478a037::h2000de71a2ce1650 in libstdweb-94b0c136d99d231e.rlib(stdweb-94b0c136d99d231e.stdweb.9583r305-cgu.5.rcgu.o)
stdweb::webapi::html_elements::select::SelectElement::selected_index::snippet::__cargo_web_snippet_57a2f98b8ead212050903a7563b9d0d12a68c4d4::h0d9a7ad030bcdcf0 in libstdweb-94b0c136d99d231e.rlib(stdweb-94b0c136d99d231e.stdweb.9583r305-cgu.5.rcgu.o)
stdweb::webapi::storage::Storage::get::snippet::__cargo_web_snippet_3730ae2ea96d69416fa5ec352b8ebb9d03d0f955::h3099bf4aa4a8d933 in libstdweb-94b0c136d99d231e.rlib(stdweb-94b0c136d99d231e.stdweb.9583r305-cgu.5.rcgu.o)
stdweb::webapi::storage::Storage::insert::snippet::__cargo_web_snippet_8fde8c0fb107bdf550973d062ce5c1188b15ac65::h4155c4a7418d2a58 in libstdweb-94b0c136d99d231e.rlib(stdweb-94b0c136d99d231e.stdweb.9583r305-cgu.5.rcgu.o)
...
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
error: aborting due to previous error
error: Could not compile `showcase`.