/
env.sh
executable file
·49 lines (41 loc) · 1.81 KB
/
env.sh
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#!/usr/bin/env bash
# this is the environment script for building bun's dependencies
# it sets c compiler and flags
export SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
export BUN_BASE_DIR=${BUN_BASE_DIR:-$(cd $SCRIPT_DIR && cd .. && pwd)}
export BUN_DEPS_DIR=${BUN_DEPS_DIR:-$BUN_BASE_DIR/src/deps/}
export BUN_DEPS_OUT_DIR=${BUN_DEPS_OUT_DIR:-$BUN_BASE_DIR/src/deps/}
# this compiler detection could be better
export CC=${CC:-$(which clang-16 || which clang || which cc)}
export CXX=${CXX:-$(which clang++-16 || which clang++ || which c++)}
export AR=${AR:-$(which llvm-ar || which ar)}
export CPUS=${CPUS:-$(nproc || sysctl -n hw.ncpu || echo 1)}
export CMAKE_CXX_COMPILER=${CXX}
export CMAKE_C_COMPILER=${CC}
export CFLAGS='-O3 -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden'
export CXXFLAGS='-O3 -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden'
export CMAKE_FLAGS=(
-DCMAKE_C_COMPILER="${CC}"
-DCMAKE_CXX_COMPILER="${CXX}"
-DCMAKE_C_FLAGS="$CFLAGS"
-DCMAKE_CXX_FLAGS="$CXXFLAGS"
-DCMAKE_BUILD_TYPE=Release
)
if [[ $(uname -s) == 'Darwin' ]]; then
if ! [[ $(uname -m) == 'arm64' ]]; then
export CMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET:-10.14}
else
export CMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET:-11.0}
fi
CMAKE_FLAGS+=(-DCMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET})
export CFLAGS="$CFLAGS -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}"
export CXXFLAGS="$CXXFLAGS -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}"
fi
mkdir -p $BUN_DEPS_OUT_DIR
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
echo "C Compiler: ${CC}"
echo "C++ Compiler: ${CXX}"
if [[ $(uname -s) == 'Darwin' ]]; then
echo "OSX Deployment Target: ${CMAKE_OSX_DEPLOYMENT_TARGET}"
fi
fi