1# Copyright 2021 The Pigweed Authors 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); you may not 4# use this file except in compliance with the License. You may obtain a copy of 5# the License at 6# 7# https://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12# License for the specific language governing permissions and limitations under 13# the License. 14 15declare_args() { 16 # This flag allows you to specify the root directory of the clang, clang++, 17 # and llvm-ar binaries to use when compiling with a clang-based toolchain. 18 # This is useful for debugging toolchain-related issues by building with an 19 # externally-provided toolchain. 20 pw_toolchain_CLANG_PREFIX = "" 21} 22 23pw_toolchain_clang_tools = { 24 if (pw_toolchain_CLANG_PREFIX != "") { 25 ar = pw_toolchain_CLANG_PREFIX + "/" 26 cc = pw_toolchain_CLANG_PREFIX + "/" 27 cxx = pw_toolchain_CLANG_PREFIX + "/" 28 } else { 29 ar = "" 30 cc = "" 31 cxx = "" 32 } 33 34 ar += "llvm-ar" 35 cc += "clang" 36 cxx += "clang++" 37} 38