68 lines
2.5 KiB
CMake
68 lines
2.5 KiB
CMake
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# Copyright 2010-2025 Google LLC
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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if(NOT UNIX)
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return()
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endif()
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find_program(CCACHE_PROGRAM ccache)
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if(CCACHE_PROGRAM)
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# Set up wrapper scripts
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set(C_LAUNCHER "${CCACHE_PROGRAM}")
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set(CXX_LAUNCHER "${CCACHE_PROGRAM}")
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file(WRITE "${CMAKE_BINARY_DIR}/launch-c"
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"#!/usr/bin/env sh\n"
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"# Xcode generator doesn't include the compiler as the\n"
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"# first argument, Ninja and Makefiles do. Handle both cases.\n"
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"if [ \"$1\" = \"${CMAKE_C_COMPILER}\" ]; then\n"
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" shift\n"
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"fi\n"
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"export CCACHE_CPP2=true\n"
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"exec \"${C_LAUNCHER}\" \"${CMAKE_C_COMPILER}\" \"$@\"\n"
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)
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file(WRITE "${CMAKE_BINARY_DIR}/launch-cxx"
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"#!/usr/bin/env sh\n"
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"# Xcode generator doesn't include the compiler as the\n"
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"# first argument, Ninja and Makefiles do. Handle both cases.\n"
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"if [ \"$1\" = \"${CMAKE_CXX_COMPILER}\" ]; then\n"
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" shift\n"
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"fi\n"
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"export CCACHE_CPP2=true\n"
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"exec \"${CXX_LAUNCHER}\" \"${CMAKE_CXX_COMPILER}\" \"$@\"\n"
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)
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file(CHMOD
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"${CMAKE_BINARY_DIR}/launch-c"
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"${CMAKE_BINARY_DIR}/launch-cxx"
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FILE_PERMISSIONS
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OWNER_READ OWNER_EXECUTE
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GROUP_READ GROUP_EXECUTE
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WORLD_READ WORLD_EXECUTE)
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if(CMAKE_GENERATOR STREQUAL "Xcode")
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# Set Xcode project attributes to route compilation and linking
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# through our scripts
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set(CMAKE_XCODE_ATTRIBUTE_CC "${CMAKE_BINARY_DIR}/launch-c")
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set(CMAKE_XCODE_ATTRIBUTE_CXX "${CMAKE_BINARY_DIR}/launch-cxx")
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set(CMAKE_XCODE_ATTRIBUTE_LD "${CMAKE_BINARY_DIR}/launch-c")
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set(CMAKE_XCODE_ATTRIBUTE_LDPLUSPLUS "${CMAKE_BINARY_DIR}/launch-cxx")
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else()
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# Support Unix Makefiles and Ninja
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set(CMAKE_C_COMPILER_LAUNCHER "${CMAKE_BINARY_DIR}/launch-c")
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set(CMAKE_CXX_COMPILER_LAUNCHER "${CMAKE_BINARY_DIR}/launch-cxx")
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endif()
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message(STATUS "CCache enabled")
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else()
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message(WARNING "CCache disabled")
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endif()
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