Added first class citizen emscripten support (new wasm64 architecture + emcc) #18432
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memsharded
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Jun 9, 2025
| compiler.version=4.0.10 | ||
| os=Emscripten | ||
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This shouldn't be necessary if we are using the emscripten installed in the machines, better remove it
memsharded
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Jun 10, 2025
memsharded
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Jun 12, 2025
memsharded
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Jun 20, 2025
Changelog: Feature: new linker flags autodetected by conan based on profile architecture Docs: omit In #18432 native `asmjs` architecture support was introduced. To enable `asmjs` code generation the `-sWASM=0` flag needs to be passed to the `emscripten linker`. That flag was added in `architecture_flag` without noticing that those flags were being passed to both compiler and linker across all toolchains. This was causing the compiler to throw warnings as this flag is only understood by the linker: ``` em++: warning: linker setting ignored during compilation: 'WASM' [-Wunused-command-line-argument] ``` Having a compilation warning is not desirable as a compilation with warning as errors will result in a build failure: ``` em++: error: linker setting ignored during compilation: 'WASM' [-Wunused-command-line-argument] [-Werror] ``` This PR aims to address this issue by creating a new `architecture_link_flags` which will return the required flags **only** for the linker based on the profile architecture. This function will be called by several toolchains which will bypass the result to the final linker by setting `LD_FLAGS`. #### Tests The current [`test_emcc`](https://github.com/conan-io/conan/blob/92b606909bd4fe04f5b3ea515130d31a8f0481da/test/functional/toolchains/emscripten/test_emcc.py) test suite already tests this new functionality added.
This was referenced Jun 24, 2025
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Changelog: Feature: Added first class citizen emscripten support (new wasm64 architecture + emcc).
Docs: conan-io/docs#4115
Examples2: conan-io/examples2#184
This PR adds updated support to
wasm(32 bits) andasm.jsand introduces new architecturewasm64.