forked from Archive/PX4-Autopilot
53 lines
2.4 KiB
CMake
53 lines
2.4 KiB
CMake
############################################################################
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#
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# Copyright (c) 2019 PX4 Development Team. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name PX4 nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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############################################################################
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# ccache
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option(CCACHE "Use ccache if available" ON)
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find_program(CCACHE_PROGRAM ccache)
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if(CCACHE AND CCACHE_PROGRAM AND NOT DEFINED ENV{CCACHE_DISABLE})
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get_filename_component(ccache_real_path ${CCACHE_PROGRAM} REALPATH)
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get_filename_component(cxx_real_path ${CMAKE_CXX_COMPILER} REALPATH)
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get_filename_component(cxx_abs_path ${CMAKE_CXX_COMPILER} ABSOLUTE)
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if ("${ccache_real_path}" STREQUAL "${cxx_real_path}")
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message(STATUS "ccache enabled via symlink (${cxx_abs_path} -> ${cxx_real_path})")
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set(CCACHE_PROGRAM "" CACHE INTERNAL "ccache program" FORCE)
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else()
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message(STATUS "ccache enabled (export CCACHE_DISABLE=1 to disable)")
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set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
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endif()
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else()
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set(CCACHE_PROGRAM "" CACHE INTERNAL "ccache program" FORCE)
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endif()
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