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Building Mozilla SpiderMonkey

Official Mozilla instructions are available here:

Preparation steps:

  • Download Mozilla SpiderMonkey sources via git or mercurial. You need esr68 branch.
  • Download and install MozillaBuild.
  • Download and install LLVM.

Build steps:

  1. Open command prompt.
  2. Execute the following commands:
# Switch to your `MozillaBuild` installation folder.

# Switch to your SpiderMonkey sources folder.
cd js/src
mkdir _build
cd _build

# Adjust LLVM installation path if needed.
# Add `--enable-debug` if you want to make a binary for debug build of SMP.
PATH=$PATH:"/c/Program Files/LLVM/bin/" JS_STANDALONE=1 ../configure --enable-nspr-build --disable-jemalloc --disable-js-shell --disable-tests --target=i686-pc-mingw32 --host=i686-pc-mingw32 --with-libclang-path="C:/Program Files/LLVM/bin" --with-clang-path="C:/Program Files/LLVM/bin/clang.exe"

Build artifacts will be located in the following paths:

  • _build/dist: .dll and headers.
  • _build/js/src/build: mozjs-68.lib and mozjs-68.pdb.
  • _build/config/external/nspr/ds: plds4.pdb.
  • _build/config/external/nspr/libc: plc4.pdb.
  • _build/config/external/nspr/pr: nspr4.pdb.

Copyright © 2018-2021 Yuri Shutenko.
Distributed by an MIT license.