Wasi + Emscripten: configure behavior with --enable-optimizations seems incorrect?

configure.ac sets DEF_MAKE_ALL_RULE to:

• if --enable-optimizations is passed, then profile-opt
• if ac_sys_system is Emscripten or WASI then build_wasm
• if neither of these, then build_all.

build_wasm is a modified version of the build_all target that drops some targets that don't build correctly in webassembly targets or are unneeded. This logic hasn't been added for the case when --enable-optimizations is passed. I think the best solution for now would be to check for these targets with --enable-optimizations and error out. I don't think PGO will work on the wasm targets without tinkering either way.

Linked PRs

• gh-126687

configure.ac の DEF_MAKE_ALL_RULE ロジックから始め、--enable-optimizations パスと Emscripten および WASI の build_wasm パスを比較してください。wasm ターゲットの動作を確認し、サポートされていない最適化構成が説明どおり拒否されることを確認してください。gh-126687 は issue にリンクされています。