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Commit c80964d

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Pat Hickey
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largely based on yury's wasmception
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‎Makefile

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# Any copyright is dedicated to the Public Domain.
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# http://creativecommons.org/publicdomain/zero/1.0/
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ROOT_DIR=${CURDIR}
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PREFIX?=/opt/wasi-sdk
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CLANG_VERSION=8.0.0
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VERSION=0.2
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DEBUG_PREFIX_MAP=-fdebug-prefix-map=$(ROOT_DIR)=wasmception://v$(VERSION)
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default: build
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echo "Use -fdebug-prefix-map=$(ROOT_DIR)=wasmception://v$(VERSION)"
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clean:
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rm -rf build $(PREFIX)
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build/llvm.BUILT:
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mkdir -p build/llvm
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cd build/llvm; cmake -G "Unix Makefiles" \
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-DCMAKE_BUILD_TYPE=MinSizeRel \
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-DCMAKE_INSTALL_PREFIX=$(PREFIX) \
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-DLLVM_TARGETS_TO_BUILD=WebAssembly \
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-DLLVM_DEFAULT_TARGET_TRIPLE=wasm32-unknown-wasi \
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-DLLVM_EXTERNAL_CLANG_SOURCE_DIR=$(ROOT_DIR)/src/llvm-project/clang \
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-DLLVM_EXTERNAL_LLD_SOURCE_DIR=$(ROOT_DIR)/src/llvm-project/lld \
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-DLLVM_ENABLE_PROJECTS="lld;clang" \
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-DDEFAULT_SYSROOT=$(PREFIX)/share/sysroot \
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$(ROOT_DIR)/src/llvm-project/llvm
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cd build/llvm; $(MAKE) -j 8 \
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install-clang \
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install-lld \
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install-llc \
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install-llvm-ar \
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install-llvm-ranlib \
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install-llvm-dwarfdump \
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install-clang-headers \
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install-llvm-nm \
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install-llvm-size \
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llvm-config
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touch build/llvm.BUILT
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build/reference-sysroot.BUILT: build/llvm.BUILT
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make -C $(ROOT_DIR)/src/reference-sysroot \
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WASM_CC=$(PREFIX)/bin/clang \
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SYSROOT=$(PREFIX)/share/sysroot
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touch build/reference-sysroot.BUILT
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build/compiler-rt.BUILT: build/llvm.BUILT
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mkdir -p build/compiler-rt
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cd build/compiler-rt; cmake -G "Unix Makefiles" \
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-DCMAKE_BUILD_TYPE=RelWithDebInfo \
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-DCMAKE_TOOLCHAIN_FILE=$(ROOT_DIR)/wasmi-sdk.cmake \
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-DCOMPILER_RT_BAREMETAL_BUILD=On \
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-DCOMPILER_RT_BUILD_XRAY=OFF \
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-DCOMPILER_RT_INCLUDE_TESTS=OFF \
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-DCOMPILER_RT_ENABLE_IOS=OFF \
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-DCOMPILER_RT_DEFAULT_TARGET_ONLY=On \
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-DWASM_SDK_PREFIX=$(PREFIX) \
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-DCMAKE_C_FLAGS="-O1 $(DEBUG_PREFIX_MAP)" \
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-DLLVM_CONFIG_PATH=$(ROOT_DIR)/build/llvm/bin/llvm-config \
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-DCOMPILER_RT_OS_DIR=wasi \
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-DCMAKE_INSTALL_PREFIX=$(PREFIX)/lib/clang/$(CLANG_VERSION)/ \
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-DCMAKE_VERBOSE_MAKEFILE:BOOL=ON \
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$(ROOT_DIR)/src/llvm-project/compiler-rt/lib/builtins
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cd build/compiler-rt; make -j 8 install
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cp -R $(ROOT_DIR)/build/llvm/lib/clang $(PREFIX)/lib/
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touch build/compiler-rt.BUILT
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build/libcxx.BUILT: build/llvm.BUILT build/compiler-rt.BUILT build/reference-sysroot.BUILT
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mkdir -p build/libcxx
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cd build/libcxx; cmake -G "Unix Makefiles" \
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-DCMAKE_TOOLCHAIN_FILE=$(ROOT_DIR)/wasi-sdk.cmake \
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-DLLVM_CONFIG_PATH=$(ROOT_DIR)/build/llvm/bin/llvm-config \
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-DCMAKE_VERBOSE_MAKEFILE:BOOL=ON \
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-DLIBCXX_HAS_PTHREAD_API:BOOL=ON \
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-DCMAKE_BUILD_TYPE=RelWithDebugInfo \
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-DLIBCXX_ENABLE_SHARED:BOOL=OFF \
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-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY:BOOL=OFF \
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-DLIBCXX_ENABLE_EXCEPTIONS:BOOL=OFF \
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-DLIBCXX_CXX_ABI=libcxxabi \
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-DLIBCXX_CXX_ABI_INCLUDE_PATHS=$(ROOT_DIR)/src/llvm-project/libcxxabi/include \
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-DLIBCXX_HAS_MUSL_LIBC:BOOL=ON \
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-DLIBCXX_ABI_VERSION=2 \
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-DWASM_SDK_PREFIX=$(PREFIX) \
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-DCMAKE_C_FLAGS="$(DEBUG_PREFIX_MAP)" \
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-DCMAKE_CXX_FLAGS="$(DEBUG_PREFIX_MAP)" \
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--debug-trycompile \
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$(ROOT_DIR)/src/llvm-project/libcxx
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cd build/libcxx; make -j 8 install
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# libc++abi.a doesn't do a multiarch install, so fix it up.
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mv $(PREFIX)/share/sysroot/lib/libc++.a $(PREFIX)/share/sysroot/lib/wasm32-wasi/
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touch build/libcxx.BUILT
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build/libcxxabi.BUILT: build/libcxx.BUILT build/llvm.BUILT
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mkdir -p build/libcxxabi
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cd build/libcxxabi; cmake -G "Unix Makefiles" \
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-DCMAKE_VERBOSE_MAKEFILE:BOOL=ON \
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-DCMAKE_CXX_COMPILER_WORKS=ON \
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-DCMAKE_C_COMPILER_WORKS=ON \
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-DLIBCXXABI_ENABLE_EXCEPTIONS:BOOL=OFF \
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-DLIBCXXABI_ENABLE_SHARED:BOOL=OFF \
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-DLIBCXXABI_HAS_PTHREAD_API:BOOL=ON \
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-DCXX_SUPPORTS_CXX11=ON \
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-DLLVM_COMPILER_CHECKED=ON \
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-DCMAKE_BUILD_TYPE=RelWithDebugInfo \
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-DLIBCXXABI_LIBCXX_PATH=$(ROOT_DIR)/src/llvm-project/libcxx \
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-DLIBCXXABI_LIBCXX_INCLUDES=$(PREFIX)/share/sysroot/include/c++/v1 \
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-DLLVM_CONFIG_PATH=$(ROOT_DIR)/build/llvm/bin/llvm-config \
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-DCMAKE_TOOLCHAIN_FILE=$(ROOT_DIR)/wasi-sdk.cmake \
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-DWASM_SDK_PREFIX=$(PREFIX) \
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-DCMAKE_C_FLAGS="$(DEBUG_PREFIX_MAP)" \
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-DCMAKE_CXX_FLAGS="$(DEBUG_PREFIX_MAP)" \
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-DUNIX:BOOL=ON \
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--debug-trycompile \
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$(ROOT_DIR)/src/llvm-project/libcxxabi
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cd build/libcxxabi; make -j 8 install
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# libc++abi.a doesn't do a multiarch install, so fix it up.
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mv $(PREFIX)/share/sysroot/lib/libc++abi.a $(PREFIX)/share/sysroot/lib/wasm32-wasi/
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touch build/libcxxabi.BUILT
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build: build/llvm.BUILT build/reference-sysroot.BUILT build/compiler-rt.BUILT build/libcxxabi.BUILT build/libcxx.BUILT
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strip: build/llvm.BUILT
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cd $(PREFIX)/bin; strip clang-8 llc lld llvm-ar
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package: build/package.BUILT
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build/package.BUILT: build
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./package.sh
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touch build/package.BUILT
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.PHONY: default clean build strip package

‎package.sh

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#!/usr/bin/env sh
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if [ -n "$1" ]; then
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export VERSION="$1"
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else
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export VERSION=`./version.sh`
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fi
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rm -rf pkg
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mkdir -p pkg/opt
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mkdir pkg/DEBIAN
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sed -e s/VERSION/$VERSION/ wasi-sdk.control > pkg/DEBIAN/control
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cp -R /opt/wasi-sdk pkg/opt/
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dpkg-deb -b pkg wasi-sdk_$VERSION\_amd64.deb
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rm -rf pkg

‎version.sh

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#!/usr/bin/env bash
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set -e
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GIT_DESCR=$(git describe --long --candidates=999 --match='wasi-sdk-*' --dirty='+m' --abbrev=12)
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GIT_PACKAGE_VERSION=$(echo $GIT_DESCR | perl -ne 'if(/^wasi-sdk-(\d+)-(\d+)-g([0-9a-f]{7,12})([+]m)?$/) { print "$1.$2g$3$4"; exit } else { print "could not parse git description"; exit 1 }';)
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echo $GIT_PACKAGE_VERSION

‎wasi-sdk.control

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Package: wasi-sdk
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Version: VERSION
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Architecture: amd64
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Priority: optional
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Description: Clang toolchain with wasm32-wasi default target, and the wasi sysroot
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Maintainer: Pat Hickey <[email protected]>

‎wask-sdk.cmake

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# Cmake toolchain description file for the Makefile
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# This is arbitrary, AFAIK, for now.
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cmake_minimum_required(VERSION 3.4.0)
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set(CMAKE_SYSTEM_NAME Wasm)
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set(CMAKE_SYSTEM_VERSION 1)
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set(CMAKE_SYSTEM_PROCESSOR wasm32)
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set(triple wasm32-unknown-wasi)
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set(CMAKE_C_COMPILER ${WASM_SDK_PREFIX}/bin/clang)
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set(CMAKE_CXX_COMPILER ${WASM_SDK_PREFIX}/bin/clang++)
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set(CMAKE_AR ${WASM_SDK_PREFIX}/bin/llvm-ar CACHE STRING "wasi-sdk build")
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set(CMAKE_RANLIB ${WASM_SDK_PREFIX}/bin/llvm-ranlib CACHE STRING "wasi-sdk build")
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set(CMAKE_C_COMPILER_TARGET ${triple} CACHE STRING "wasi-sdk build")
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set(CMAKE_CXX_COMPILER_TARGET ${triple} CACHE STRING "wasi-sdk build")
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set(CMAKE_C_FLAGS "-v" CACHE STRING "wasi-sdk build")
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set(CMAKE_CXX_FLAGS "-v -std=c++11" CACHE STRING "wasi-sdk build")
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set(CMAKE_EXE_LINKER_FLAGS "-Wl,--no-threads" CACHE STRING "wasi-sdk build")
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set(CMAKE_SYSROOT ${WASM_SDK_PREFIX}/share/sysroot CACHE STRING "wasi-sdk build")
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set(CMAKE_STAGING_PREFIX ${WASM_SDK_PREFIX}/share/sysroot CACHE STRING "wasi-sdk build")
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# Don't look in the sysroot for executables to run during the build
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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# Only look in the sysroot (not in the host paths) for the rest
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
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# Some other hacks
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set(CMAKE_C_COMPILER_WORKS ON)
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set(CMAKE_CXX_COMPILER_WORKS ON)

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