From eda410b6608753a2ae352b1ef09af5395c017961 Mon Sep 17 00:00:00 2001
From: Jia Yuan Lo <jylo06g@gmail.com>
Date: Sat, 8 May 2021 13:10:49 +0800
Subject: [PATCH] emscripten: add libunwind & compiler-rt

---
 packages/emscripten/build.sh | 31 +++++++++++++++++++++----------
 1 file changed, 21 insertions(+), 10 deletions(-)

diff --git a/packages/emscripten/build.sh b/packages/emscripten/build.sh
index 542a3645a2..f033e6cf98 100644
--- a/packages/emscripten/build.sh
+++ b/packages/emscripten/build.sh
@@ -34,25 +34,36 @@ BINARYEN_ZIP_SHA256=dfb823ec8189c7f1b40be7665064778ba2e1c7071689f0450b810dcb18bd
 
 # https://github.com/emscripten-core/emsdk/blob/main/emsdk.py
 # https://chromium.googlesource.com/emscripten-releases/+/refs/heads/main/src/build.py
-# https://github.com/llvm/llvm-project/blob/main/llvm/CMakeLists.txt
-# https://github.com/llvm/llvm-project/blob/main/clang/CMakeLists.txt
+# https://github.com/llvm/llvm-project
 LLVM_BUILD_ARGS="
 -DCMAKE_BUILD_TYPE=Release
+-DCMAKE_CROSSCOMPILING=ON
 -DCMAKE_INSTALL_PREFIX=$TERMUX_PREFIX/lib/emscripten-llvm
+
+-DDEFAULT_SYSROOT=$(dirname $TERMUX_PREFIX)
+-DGENERATOR_IS_MULTI_CONFIG=ON
 -DLLVM_INCLUDE_EXAMPLES=OFF
 -DLLVM_INCLUDE_TESTS=OFF
+-DLLVM_INSTALL_TOOLCHAIN_ONLY=ON
 -DLLVM_ENABLE_ASSERTIONS=OFF
--DLLVM_ENABLE_PROJECTS='clang;lld'
--DLLVM_TABLEGEN=$TERMUX_PKG_HOSTBUILD_DIR/bin/llvm-tblgen
--DCLANG_TABLEGEN=$TERMUX_PKG_HOSTBUILD_DIR/bin/clang-tblgen
--DGENERATOR_IS_MULTI_CONFIG=ON
--DDEFAULT_SYSROOT=$(dirname $TERMUX_PREFIX)
--DCMAKE_SKIP_RPATH=ON
--DLLVM_ENABLE_LIBXML2=OFF
 -DLLVM_ENABLE_BINDINGS=OFF
+-DLLVM_ENABLE_LIBXML2=OFF
+-DLLVM_ENABLE_PROJECTS='clang;compiler-rt;libunwind;lld'
+-DLLVM_TABLEGEN=$TERMUX_PKG_HOSTBUILD_DIR/bin/llvm-tblgen
+
 -DCLANG_ENABLE_ARCMT=OFF
 -DCLANG_ENABLE_STATIC_ANALYZER=OFF
--DLLVM_INSTALL_TOOLCHAIN_ONLY=ON
+-DCLANG_TABLEGEN=$TERMUX_PKG_HOSTBUILD_DIR/bin/clang-tblgen
+
+-DCOMPILER_RT_BUILD_CRT=OFF
+-DCOMPILER_RT_BUILD_LIBFUZZER=OFF
+-DCOMPILER_RT_BUILD_MEMPROF=OFF
+-DCOMPILER_RT_BUILD_PROFILE=OFF
+-DCOMPILER_RT_BUILD_SANITIZERS=OFF
+-DCOMPILER_RT_BUILD_XRAY=OFF
+-DCOMPILER_RT_INCLUDE_TESTS=OFF
+
+-DLIBUNWIND_USE_COMPILER_RT=ON
 "
 
 # https://github.com/WebAssembly/binaryen/blob/main/CMakeLists.txt