WebAssembly Playground

Scripts to compile libraries to WebAssembly using Bazel.

To get (somewhat) reproducible results, run the builds in a Docker container. To get a shell within the container, run build the image and run it:

$ docker build -t wasm docker
$ docker run -it -v "${PWD}:/build" wasm

Then build targets as usual. To compile WebAssembly using the Emscripten toolchain, pass --cpu=wasm32. Pass -c opt for an optimised build.

Libraries

Build Label	Version
//lib/aec	1.0.6 🔗
//lib/bison	3.8.2 🔗
//lib/blas	3.10.0 🔗
//lib/boost	1.80.0 🔗
//lib/bz2	1.0.8 🔗
//lib/ceres	2.1.0 🔗
//lib/cmark	0.30.2 🔗
//lib/cmarkgfm	0.29.0.gfm.6 🔗
//lib/curl	7.85.0 🔗
//lib/deflate	1.14 🔗
//lib/eigen	3.4.0 🔗
//lib/exiv2	0.27.5 🔗
//lib/expat	2.2.10 🔗
//lib/ffi	3.3 🔗
//lib/ffmpeg	6.0.1 🔗
//lib/fftw	3.3.10 🔗
//lib/flex	2.6.4 🔗
//lib/gcc	10.2.0 🔗 🔗
//lib/gdal	3.5.2 🔗 🔗
//lib/geos	3.11.0 🔗
//lib/geotiff	1.6.0 🔗
//lib/gflags	2.2.2 🔗
//lib/gif	5.2.1 🔗
//lib/glog	0.4.0 🔗
//lib/gmp	6.3.0 🔗 🔗 🔗 🔗
//lib/grass	8.2.0 🔗
//lib/hdf	4.2.15 🔗
//lib/hdf5	1.12.0 🔗 🔗
//lib/iconv	1.16 🔗
//lib/imath	3.1.5 🔗
//lib/jpegturbo	3.0.1 🔗
//lib/jq	1.6 🔗
//lib/lcms	2.12 🔗
//lib/lz4	1.9.3 🔗
//lib/lzma	5.4.5 🔗
//lib/lzo	2.10 🔗
//lib/m4	1.4.19 🔗
//lib/mpdecimal	2.5.1 🔗
//lib/mpfr	4.2.1 🔗 🔗 🔗 🔗
//lib/musl	1.2.3 🔗
//lib/nasm	2.16.01 🔗
//lib/ncurses	6.2 🔗
//lib/oniguruma	6.9.6 🔗
//lib/opencv	4.6.0 🔗
//lib/openexr	3.1.5 🔗
//lib/openjpeg	2.4.0 🔗
//lib/openssl	3.0.5 🔗
//lib/pano13	2.9.19 🔗
//lib/png	1.6.40 🔗
//lib/proj	8.0.1 🔗
//lib/protobuf	3.19.4 🔗
//lib/python	3.10.7 🔗
//lib/quirc	1.0.1 🔗
//lib/readline	8.0 🔗
//lib/sdl	2.24.0 🔗
//lib/sqlite	3.35.5 🔗
//lib/suitesparse	5.9.0 🔗
//lib/szip	2.1.1 🔗
//lib/tcl	8.6.11 🔗
//lib/tiff	4.2.0 🔗
//lib/tirpc	1.3.1 🔗
//lib/vigra	1.11.1 🔗
//lib/vpx	1.13.1 🔗
//lib/webp	1.3.2 🔗
//lib/x264	0.164.3161 🔗
//lib/x265	3.5 🔗
//lib/xml	2.9.10 🔗
//lib/xslt	1.1.34 🔗
//lib/yasm	1.3.0 🔗
//lib/z	1.3 🔗
//lib/zstd	1.5.0 🔗

Tools

Build Label	Version
//tools/emscripten	3.1.47 🔗
//tools/llvm	17.0.2 🔗

Nix Shell

To get a Clang toolchain in a Nix environment, run nix-shell, it will pick up the shell.nix file in the repo. This will set $CC to clang, along with any necessary standard library paths.