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Commit e0932f67 authored by John Kessenich's avatar John Kessenich
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README: Fix WASM typos.

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......@@ -166,24 +166,25 @@ when executed from the glslang subdirectory of the glslang repository.
With no arguments it builds the full grammar, and with a "web" argument,
the web grammar subset (see more about the web subset in the next section).
### WASM for the the Web
### WASM for the Web
Use the steps in [Build Steps](#build-steps), which following notes/exceptions:
Use the steps in [Build Steps](#build-steps), with the following notes/exceptions:
* For building the web subset of core glslang:
+ `m4` also needs a `-DGLSLANG_WEB` argument, or simply execute `updateGrammar web` from the glslang subdirectory
+ execute `updateGrammar web` from the glslang subdirectory
(or if using your own scripts, `m4` needs a `-DGLSLANG_WEB` argument)
+ turn off the CMAKE options for `BUILD_TESTING`, `ENABLE_OPT`, and `INSTALL_GTEST`,
while turning on `ENABLE_GLSLANG_WEB`
* `emsdk` needs to be present in your executable search path, *PATH* for
Bash-like enivironments
+ Instructions located
[here](https://emscripten.org/docs/getting_started/downloads.html#sdk-download-and-install)
+ [Instructions located
here](https://emscripten.org/docs/getting_started/downloads.html#sdk-download-and-install)
* Do not checkout SPIRV-Tools into `External`
+ Does not work correctly with emscripten out of the box and we don't want it
in the build anyway. *TBD* Have build ignore SPIRV-Tools for web build
* Wrap call to `cmake` using `emconfigure` with ENABLE_GLSLANG_WEB=ON:
+ e.g. For Linux, `emconfigure cmake -DCMAKE_BUILD_TYPE=Release
-DENABLE_GLSLANG_WEB=ON -DCMAKE_INSTALL_PREFIX="$(pwd)/install" ..`
* To get a 'true' minimized build, make sure to use `brotli` to compress the .js
* To get a fully minimized build, make sure to use `brotli` to compress the .js
and .wasm files
Testing
......
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