Fix Emscripten detection false positives and unsuppressible status me… #1406
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…ssages Issue 1: False positive Emscripten detection The check_c_source_compiles() test incorrectly detected Emscripten when building with non-Emscripten WASM toolchains (e.g., WASI SDK). In cross- compilation scenarios, CMake creates a static library instead of an executable for compile tests. An empty source file (when __EMSCRIPTEN__ is not defined) successfully archives into a static library, causing the test to pass when it should fail. Resolution: Use the EMSCRIPTEN CMake variable set by Emscripten's official toolchain file, which is the recommended detection method. Remove the unreliable check_c_source_compiles() fallback. Issue 2: Unsuppressible status messages The message() calls lacked a type argument, making them always print regardless of CMake's log level settings. Resolution: Add STATUS type to message() calls so they can be suppressed with CMake's --log-level option.
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…ssages
Issue 1: False positive Emscripten detection
The check_c_source_compiles() test incorrectly detected Emscripten when building with non-Emscripten WASM toolchains (e.g., WASI SDK). In cross- compilation scenarios, CMake creates a static library instead of an executable for compile tests. An empty source file (when EMSCRIPTEN is not defined) successfully archives into a static library, causing the test to pass when it should fail.
Resolution: Use the EMSCRIPTEN CMake variable set by Emscripten's official toolchain file, which is the recommended detection method. Remove the unreliable check_c_source_compiles() fallback.
Issue 2: Unsuppressible status messages
The message() calls lacked a type argument, making them always print regardless of CMake's log level settings.
Resolution: Add STATUS type to message() calls so they can be suppressed with CMake's --log-level option.