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- # Copyright 2022 DeepMind Technologies Limited
- #
- # 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.
- option(MUJOCO_HARDEN "Enable build hardening for MuJoCo." OFF)
- if(MUJOCO_HARDEN
- AND NOT
- CMAKE_CXX_COMPILER_ID
- MATCHES
- ".*Clang.*"
- )
- message(FATAL_ERROR "MUJOCO_HARDEN is only supported when building with Clang")
- endif()
- if(MUJOCO_HARDEN)
- set(MUJOCO_HARDEN_COMPILE_OPTIONS -D_FORTIFY_SOURCE=2 -fstack-protector)
- if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
- set(MUJOCO_HARDEN_LINK_OPTIONS -Wl,-bind_at_load)
- elseif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
- set(MUJOCO_HARDEN_LINK_OPTIONS -Wl,-z,relro -Wl,-z,now)
- endif()
- else()
- set(MUJOCO_HARDEN_COMPILE_OPTIONS "")
- set(MUJOCO_HARDEN_LINK_OPTIONS "")
- endif()
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