| # Copyright 2020 Google LLC |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # https://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| function(iree_append value) |
| foreach(variable ${ARGN}) |
| set(${variable} "${${variable}} ${value}" PARENT_SCOPE) |
| endforeach(variable) |
| endfunction() |
| |
| if(IREE_ENABLE_LLD) |
| if(IREE_USE_LINKER) |
| message(FATAL_ERROR "IREE_ENABLE_LLD and IREE_USE_LINKER can't be set at the same time") |
| endif() |
| set(IREE_USE_LINKER "lld") |
| endif() |
| |
| if(IREE_USE_LINKER) |
| set(IREE_LINKER_FLAG "-fuse-ld=${IREE_USE_LINKER}") |
| |
| include(CheckCXXSourceCompiles) |
| set(CMAKE_REQUIRED_FLAGS "${IREE_LINKER_FLAG}") |
| check_cxx_source_compiles("int main() { return 0; }" CXX_SUPPORTS_CUSTOM_LINKER) |
| if(NOT CXX_SUPPORTS_CUSTOM_LINKER) |
| message(FATAL_ERROR "Compiler does not support '-fuse-ld=${IREE_USE_LINKER}'") |
| endif() |
| |
| iree_append("-fuse-ld=${IREE_USE_LINKER}" |
| CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS) |
| endif() |
