All c/c++ programs can be compiled to Wasm without any xmake.lua configuration changes, just switch to the wasm compilation platform and compile.

$ xmake f -p wasm
$ xmake

For detailed wasm compilation configuration see: wasm configuration

Alternatively, when compiling a file with the -preload-file assets/xxx.md setting, we can also simplify its setup by configuring

EXPLORER

src

assets

file1.txt

file2.txt

main.cpp

xmake.lua

Lua xmake.lua

1234567

add_rules("mode.debug", "mode.release")

target("test")
    set_kind("binary")
    add_files("src/*.cpp")
    add_values("wasm.preloadfiles", "src/assets/file1.txt")
    add_values("wasm.preloadfiles", "src/assets/file2.txt")

Run in Browser

xmake run now supports running WebAssembly (Wasm) targets directly in the browser. This is particularly useful for Emscripten-based projects.

If emrun is available, Xmake uses it. Otherwise, it falls back to a simple Python HTTP server to serve the directory.

You can run your Wasm application simply by executing:

$ xmake run

Then, follow the output instructions to access http://localhost:8000 in your browser to run the Wasm program.