49 lines
2.4 KiB
Makefile
49 lines
2.4 KiB
Makefile
# WASM-specific make additions — append to the configure-generated defs.mak.
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#
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# Usage (matches what the CI workflow does):
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#
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# source <emsdk>/emsdk_env.sh
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# CFLAGS="--std=c17 -D_DEFAULT_SOURCE=1 -DEMSCRIPTEN=1 -g" \
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# emconfigure ./configure --without-cairo --without-opengl --without-x \
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# --without-tk --without-tcl \
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# --disable-readline --disable-compression \
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# --target=asmjs-unknown-emscripten
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# cat toolchains/emscripten/defs.mak >> defs.mak
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# emmake make depend
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# emmake make -j$(nproc) modules libs
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# emmake make techs
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# emmake make mains
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# Activate the WASM link target in magic/Makefile.
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MAKE_WASM = 1
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# Emscripten linker flags.
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# The link step runs from the magic/ subdirectory, so embed-file paths
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# are relative to that directory (../scmos, ../windows/...).
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#
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# INCOMING_MODULE_JS_API is emscripten's default list plus `wasmBinary`.
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# Our JS loaders (npm/examples/*.js) pass Module.wasmBinary to embed the .wasm,
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# but emscripten 6.0.2 dropped wasmBinary (and a batch of GL/SDL members) from
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# the default INCOMING_MODULE_JS_API. With ASSERTIONS=1 that turns into a hard
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# runtime abort: "`Module.wasmBinary` was supplied but `wasmBinary` not included
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# in INCOMING_MODULE_JS_API". We spell out the full default list (so external
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# consumers passing locateFile/arguments/etc. keep working) and re-add
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# wasmBinary. Keep this in sync with emscripten's default if it grows.
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TOP_EXTRA_LIBS += \
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-sWASM=1 \
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-sMODULARIZE=1 \
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-sEXPORT_ES6=1 \
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-sUSE_ZLIB=1 \
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-sEXPORTED_FUNCTIONS=_magic_wasm_init,_magic_wasm_run_command,_magic_wasm_source_file,_magic_wasm_update \
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-sEXPORTED_RUNTIME_METHODS=cwrap,ccall,FS,setValue,getValue \
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-sINCOMING_MODULE_JS_API=ENVIRONMENT,arguments,canvas,dynamicLibraries,elementPointerLock,instantiateWasm,locateFile,monitorRunDependencies,noExitRuntime,noInitialRun,onAbort,onExit,onRuntimeInitialized,postRun,preInit,preRun,print,printErr,setStatus,statusMessage,stderr,stdin,stdout,thisProgram,wasm,websocket,wasmBinary \
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-sALLOW_MEMORY_GROWTH=1 \
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-sINITIAL_MEMORY=67108864 \
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-Wl,-z,stack-size=10485760 \
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-sASSERTIONS=1 \
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-sENVIRONMENT=node,web,worker \
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-sFORCE_FILESYSTEM=1 \
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--embed-file ../scmos@/magic/sys/current \
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--embed-file ../windows/windows7.glyphs@/magic/sys/windows7.glyphs \
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--embed-file ../windows/windows7.glyphs@/magic/sys/bw.glyphs
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