cmake detection of upstream or fastcomp backend

[caiiiycuk]

Hi. Is it possible to detect if cmake is runned for fastcomp or upstream backend, need it for switch between asyncify and emterpreter. I checked CMAKE_C_COMPILER_VERSION and EMSCRIPEN_VERSION both does not contain such information. Thanks

[Alon Zakai]

In C you can check

#ifdef __wasm__

as __wasm__ is defined only in the upstream backend. Perhaps CMake has a a way to check C defines?

On Wed, Oct 30, 2019 at 8:15 AM caiiiycuk <caii...@gmail.com> wrote:

Hi. Is it possible to detect if cmake is runned for fastcomp or upstream backend, need it for switch between asyncify and emterpreter. I checked CMAKE_C_COMPILER_VERSION and EMSCRIPEN_VERSION both does not contain such information. Thanks

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