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#!/usr/bin/env bash
#
# This file locates the native compiler with the given name and version and sets the environment variables to locate it.
#
source="${BASH_SOURCE[0]}"
# resolve $SOURCE until the file is no longer a symlink
while [[ -h $source ]]; do
scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
source="$(readlink "$source")"
# if $source was a relative symlink, we need to resolve it relative to the path where the
# symlink file was located
[[ $source != /* ]] && source="$scriptroot/$source"
done
scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
if [ $# -lt 0 ]
then
echo "Usage..."
echo "find-native-compiler.sh <compiler> <compiler major version> <compiler minor version>"
echo "Specify the name of compiler (clang or gcc)."
echo "Specify the major version of compiler."
echo "Specify the minor version of compiler."
exit 1
fi
. $scriptroot/../pipeline-logging-functions.sh
compiler="$1"
cxxCompiler="$compiler++"
majorVersion="$2"
minorVersion="$3"
if [ "$compiler" = "gcc" ]; then cxxCompiler="g++"; fi
check_version_exists() {
desired_version=-1
# Set up the environment to be used for building with the desired compiler.
if command -v "$compiler-$1.$2" > /dev/null; then
desired_version="-$1.$2"
elif command -v "$compiler$1$2" > /dev/null; then
desired_version="$1$2"
elif command -v "$compiler-$1$2" > /dev/null; then
desired_version="-$1$2"
fi
echo "$desired_version"
}
if [ -z "$CLR_CC" ]; then
# Set default versions
if [ -z "$majorVersion" ]; then
# note: gcc (all versions) and clang versions higher than 6 do not have minor version in file name, if it is zero.
if [ "$compiler" = "clang" ]; then versions=( 9 8 7 6.0 5.0 4.0 3.9 3.8 3.7 3.6 3.5 )
elif [ "$compiler" = "gcc" ]; then versions=( 9 8 7 6 5 4.9 ); fi
for version in "${versions[@]}"; do
parts=(${version//./ })
desired_version="$(check_version_exists "${parts[0]}" "${parts[1]}")"
if [ "$desired_version" != "-1" ]; then majorVersion="${parts[0]}"; break; fi
done
if [ -z "$majorVersion" ]; then
if command -v "$compiler" > /dev/null; then
if [ "$(uname)" != "Darwin" ]; then
Write-PipelineTelemetryError -category "Build" -type "warning" "Specific version of $compiler not found, falling back to use the one in PATH."
fi
export CC="$(command -v "$compiler")"
export CXX="$(command -v "$cxxCompiler")"
else
Write-PipelineTelemetryError -category "Build" "No usable version of $compiler found."
exit 1
fi
else
if [ "$compiler" = "clang" ] && [ "$majorVersion" -lt 5 ]; then
if [ "$build_arch" = "arm" ] || [ "$build_arch" = "armel" ]; then
if command -v "$compiler" > /dev/null; then
Write-PipelineTelemetryError -category "Build" -type "warning" "Found clang version $majorVersion which is not supported on arm/armel architectures, falling back to use clang from PATH."
export CC="$(command -v "$compiler")"
export CXX="$(command -v "$cxxCompiler")"
else
Write-PipelineTelemetryError -category "Build" "Found clang version $majorVersion which is not supported on arm/armel architectures, and there is no clang in PATH."
exit 1
fi
fi
fi
fi
else
desired_version="$(check_version_exists "$majorVersion" "$minorVersion")"
if [ "$desired_version" = "-1" ]; then
Write-PipelineTelemetryError -category "Build" "Could not find specific version of $compiler: $majorVersion $minorVersion."
exit 1
fi
fi
if [ -z "$CC" ]; then
export CC="$(command -v "$compiler$desired_version")"
export CXX="$(command -v "$cxxCompiler$desired_version")"
if [ -z "$CXX" ]; then export CXX="$(command -v "$cxxCompiler")"; fi
fi
else
if [ ! -f "$CLR_CC" ]; then
Write-PipelineTelemetryError -category "Build" "CLR_CC is set but path '$CLR_CC' does not exist"
exit 1
fi
export CC="$CLR_CC"
export CXX="$CLR_CXX"
fi
if [ -z "$CC" ]; then
Write-PipelineTelemetryError -category "Build" "Unable to find $compiler."
exit 1
fi
export CCC_CC="$CC"
export CCC_CXX="$CXX"
export SCAN_BUILD_COMMAND="$(command -v "scan-build$desired_version")"
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