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# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
set(CMAKE_BUILD_TYPE "RELEASE" CACHE STRING "" FORCE)
set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "" FORCE)
endif()
if(APPLE)
if(NOT CMAKE_OSX_ARCHITECTURES)
set(CMAKE_OSX_ARCHITECTURES "x86_64")
endif()
endif()
if(MSVC AND MSVC_VERSION LESS "1900" AND NOT ".${CMAKE_CXX_COMPILER_ID}" STREQUAL ".Clang")
message(FATAL_ERROR "Visual Studio too old. Use Visual Studio 2017 Preview or newer.")
endif()
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
set(CMAKE_COMPILER_IS_GNUCXX TRUE)
set(CMAKE_COMPILER_IS_CLANG TRUE)
endif()
if(CMAKE_C_COMPILER_ID STREQUAL "Clang")
set(CMAKE_COMPILER_IS_GNUCC TRUE)
set(CMAKE_COMPILER_IS_CLANG TRUE)
endif()
if((NOT CMAKE_COMPILER_IS_GNUCXX) EQUAL (NOT (NOT CMAKE_COMPILER_IS_GNUCC)))
# this build system has logic errors otherwise
message(FATAL_ERROR "use either use both gcc and g++ or neither")
endif()
IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(LINUX TRUE)
endif()
if(MSVC)
add_definitions(-DNOMINMAX -D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_WARNINGS -D_NO_DEBUG_HEAP)
add_definitions(-D_ITERATOR_DEBUG_LEVEL=0)
add_definitions(-D_HAS_EXCEPTIONS=0)
add_definitions(-D_USE_MATH_DEFINES=1)
add_definitions(-D_SILENCE_CXX17_NEGATORS_DEPRECATION_WARNING)
add_definitions(-D_SILENCE_CXX17_ADAPTOR_TYPEDEFS_DEPRECATION_WARNING)
if(MSVC_VERSION GREATER 1909) # visual studio 2017
set(__stuff "-permissive-")
set(CMAKE_CXX_FLAGS "${__stuff} ${CMAKE_CXX_FLAGS}")
set(CMAKE_C_FLAGS "${__stuff} ${CMAKE_CXX_FLAGS}")
endif()
if(opentrack-64bit)
set(ent "-HIGHENTROPYVA")
else()
set(ent "")
endif()
foreach (i SHARED MODULE EXE)
# 4020 is compiler bug for opentrack-cv
set(CMAKE_${i}_LINKER_FLAGS "-DYNAMICBASE -NXCOMPAT -DEBUG -ignore:4020 ${ent} ${CMAKE_${i}_LINKER_FLAGS}")
endforeach()
endif()
if(WIN32)
if(CMAKE_COMPILER_IS_GNUCXX)
set(CMAKE_RC_COMPILER_INIT i686-w64-mingw32-windres)
set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> --use-temp-file -O coff <DEFINES> -i <SOURCE> -o <OBJECT>")
endif()
enable_language(RC)
endif()
if(opentrack-install-rpath)
set(CMAKE_INSTALL_RPATH "${opentrack-install-rpath}")
else()
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}")
endif()
set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
set(CMAKE_SKIP_INSTALL_RPATH FALSE)
set(CMAKE_SKIP_RPATH FALSE)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_AUTOMOC OFF)
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
include_directories("${CMAKE_SOURCE_DIR}")
if(CMAKE_COMPILER_IS_GNUCXX AND UNIX AND (NOT APPLE))
set(_common "-fvisibility=hidden")
set(CMAKE_C_FLAGS "${_common} ${CMAKE_C_FLAGS}")
set(CMAKE_CXX_FLAGS "${_common} -fuse-cxa-atexit ${CMAKE_CXX_FLAGS}")
endif()
if(APPLE)
set(CMAKE_MACOSX_RPATH OFF)
set(apple-frameworks "-stdlib=libc++ -framework Cocoa -framework CoreFoundation -lobjc -lz -framework Carbon")
set(CMAKE_SHARED_LINKER_FLAGS " ${apple-frameworks} ${CMAKE_SHARED_LINKER_FLAGS}")
#set(CMAKE_STATIC_LINKER_FLAGS " ${apple-frameworks} ${CMAKE_STATIC_LINKER_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS " ${apple-frameworks} ${CMAKE_EXE_LINKER_FLAGS}")
set(CMAKE_MODULE_LINKER_FLAGS " ${apple-frameworks} ${CMAKE_MODULE_LINKER_FLAGS}")
set(CMAKE_CXX_FLAGS "-stdlib=libc++ ${CMAKE_CXX_FLAGS}")
endif()
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_DEFAULT 17)
set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
set(CMAKE_CXX_EXTENSIONS FALSE)
foreach(k _RELEASE _DEBUG _RELWITHDEBINFO _MINSIZEREL)
set(CMAKE_C_FLAGS${k} "-UNDEBUG ${CMAKE_C_FLAGS${k}}")
set(CMAKE_CXX_FLAGS${k} "-UNDEBUG ${CMAKE_CXX_FLAGS${k}}")
endforeach()
set_property(GLOBAL PROPERTY USE_FOLDERS OFF)
if(MINGW)
add_definitions(-DMINGW_HAS_SECURE_API)
endif()
# assume binutils
if(LINUX)
foreach (i SHARED MODULE EXE)
set(CMAKE_${i}_LINKER_FLAGS "-Wl,-z,relro,-z,now,--exclude-libs,ALL ${CMAKE_${i}_LINKER_FLAGS}")
endforeach()
endif()
if(UNIX AND NOT APPLE)
include(opentrack-pkg-config)
endif()
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