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	#!/usr/bin/env bash			#!/usr/bin/env bash

	export LC_ALL=C			export LC_ALL=C

	set -euxo pipefail			set -euxo pipefail

	: "${TOPLEVEL:=$(git rev-parse --show-toplevel)}"			: "${TOPLEVEL:=$(git rev-parse --show-toplevel)}"
	: "${BUILD_DIR:=${TOPLEVEL}/build}"			: "${BUILD_DIR:=${TOPLEVEL}/build}"

				function usage() {
				echo "Usage: $0 [--Werror]"
				echo "Build the default target using cmake and ninja."
				echo "Options:"
				echo " --Werror: add -Werror to the compiler flags"
				echo "Environment variables:"
				echo " CMAKE_FLAGS: array of the CMAKE flags to use for the build"
				echo " BUILD_DIR: the build directory, (default: ${BUILD_DIR}})"
				echo " TOPLEVEL: the project root directory, (default: ${TOPLEVEL}})"
				}

	# Default to nothing			# Default to nothing
	: "${CMAKE_FLAGS:=}"			: "${CMAKE_FLAGS:=}"

	mkdir -p "${BUILD_DIR}"			mkdir -p "${BUILD_DIR}"
	cd ${BUILD_DIR}			cd ${BUILD_DIR}
	git clean -xffd			git clean -xffd

	read -a CMAKE_FLAGS <<< "${CMAKE_FLAGS}"			read -a CMAKE_FLAGS <<< "${CMAKE_FLAGS}"
	cmake -GNinja .. -DENABLE_CLANG_TIDY=OFF "${CMAKE_FLAGS[@]}"
				case "$1" in
				"--Werror")
				CMAKE_FLAGS+=(
				"-DCMAKE_C_FLAGS=-Werror"
				"-DCMAKE_CXX_FLAGS=-Werror"
				)
				;;
				*)
				usage
				exit 1
				;;
				esac

				cmake -GNinja .. "${CMAKE_FLAGS[@]}"

	# Run build			# Run build
	ninja			ninja