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cmake_minimum_required(VERSION 3.5)
# load settings in case of "try compile"
set(TOOLCHAIN_CONFIG_FILE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/toolchain.config.cmake")
get_property(__IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE)
if(__IN_TRY_COMPILE)
include("${CMAKE_CURRENT_SOURCE_DIR}/../toolchain.config.cmake" OPTIONAL) # CMAKE_BINARY_DIR is different
macro(toolchain_save_config)
# nothing
endmacro()
else()
macro(toolchain_save_config)
set(__config "#message(\"Load TOOLCHAIN config...\")\n")
get_cmake_property(__variableNames VARIABLES)
set(__vars_list ${ARGN})
list(APPEND __vars_list
${TOOLCHAIN_CONFIG_VARS}
CMAKE_SYSTEM_NAME
CMAKE_SYSTEM_VERSION
CMAKE_SYSTEM_PROCESSOR
CMAKE_C_COMPILER
CMAKE_CXX_COMPILER
CMAKE_C_FLAGS
CMAKE_CXX_FLAGS
CMAKE_SHARED_LINKER_FLAGS
CMAKE_MODULE_LINKER_FLAGS
CMAKE_EXE_LINKER_FLAGS
CMAKE_SKIP_RPATH
CMAKE_FIND_ROOT_PATH
GCC_COMPILER_VERSION
)
foreach(__var ${__variableNames})
foreach(_v ${__vars_list})
if("x${__var}" STREQUAL "x${_v}")
if(${__var} MATCHES " ")
set(__config "${__config}set(${__var} \"${${__var}}\")\n")
else()
set(__config "${__config}set(${__var} ${${__var}})\n")
endif()
endif()
endforeach()
endforeach()
if(EXISTS "${TOOLCHAIN_CONFIG_FILE}")
file(READ "${TOOLCHAIN_CONFIG_FILE}" __config_old)
endif()
if("${__config_old}" STREQUAL "${__config}")
# nothing
else()
#message("Update TOOLCHAIN config: ${__config}")
file(WRITE "${TOOLCHAIN_CONFIG_FILE}" "${__config}")
endif()
unset(__config)
unset(__config_old)
unset(__vars_list)
unset(__variableNames)
endmacro()
endif() # IN_TRY_COMPILE
if(NOT CMAKE_FIND_ROOT_PATH_MODE_LIBRARY)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
endif()
if(NOT CMAKE_FIND_ROOT_PATH_MODE_INCLUDE)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
endif()
if(NOT CMAKE_FIND_ROOT_PATH_MODE_PACKAGE)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
endif()
if(NOT CMAKE_FIND_ROOT_PATH_MODE_PROGRAM)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
endif()
macro(__cmake_find_root_save_and_reset)
foreach(v
CMAKE_FIND_ROOT_PATH_MODE_LIBRARY
CMAKE_FIND_ROOT_PATH_MODE_INCLUDE
CMAKE_FIND_ROOT_PATH_MODE_PACKAGE
CMAKE_FIND_ROOT_PATH_MODE_PROGRAM
)
set(__save_${v} ${${v}})
set(${v} NEVER)
endforeach()
endmacro()
macro(__cmake_find_root_restore)
foreach(v
CMAKE_FIND_ROOT_PATH_MODE_LIBRARY
CMAKE_FIND_ROOT_PATH_MODE_INCLUDE
CMAKE_FIND_ROOT_PATH_MODE_PACKAGE
CMAKE_FIND_ROOT_PATH_MODE_PROGRAM
)
set(${v} ${__save_${v}})
unset(__save_${v})
endforeach()
endmacro()
# macro to find programs on the host OS
macro(find_host_program)
__cmake_find_root_save_and_reset()
if(CMAKE_HOST_WIN32)
SET(WIN32 1)
SET(UNIX)
elseif(CMAKE_HOST_APPLE)
SET(APPLE 1)
SET(UNIX)
endif()
find_program(${ARGN})
SET(WIN32)
SET(APPLE)
SET(UNIX 1)
__cmake_find_root_restore()
endmacro()
# macro to find packages on the host OS
macro(find_host_package)
__cmake_find_root_save_and_reset()
if(CMAKE_HOST_WIN32)
SET(WIN32 1)
SET(UNIX)
elseif(CMAKE_HOST_APPLE)
SET(APPLE 1)
SET(UNIX)
endif()
find_package(${ARGN})
SET(WIN32)
SET(APPLE)
SET(UNIX 1)
__cmake_find_root_restore()
endmacro()
set(CMAKE_SKIP_RPATH TRUE CACHE BOOL "If set, runtime paths are not added when using shared libraries.")
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