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OpenCVUtils.cmake
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if(COMMAND ocv_cmake_dump_vars) # include guard
return()
endif()
include(CMakeParseArguments)
# Debugging function
function(ocv_cmake_dump_vars)
set(OPENCV_SUPPRESS_DEPRECATIONS 1) # suppress deprecation warnings from variable_watch() guards
get_cmake_property(__variableNames VARIABLES)
cmake_parse_arguments(DUMP "" "TOFILE" "" ${ARGN})
set(regex "${DUMP_UNPARSED_ARGUMENTS}")
string(TOLOWER "${regex}" regex_lower)
set(__VARS "")
foreach(__variableName ${__variableNames})
string(TOLOWER "${__variableName}" __variableName_lower)
if((__variableName MATCHES "${regex}" OR __variableName_lower MATCHES "${regex_lower}")
AND NOT __variableName_lower MATCHES "^__")
get_property(__value VARIABLE PROPERTY "${__variableName}")
set(__VARS "${__VARS}${__variableName}=${__value}\n")
endif()
endforeach()
if(DUMP_TOFILE)
file(WRITE ${CMAKE_BINARY_DIR}/${DUMP_TOFILE} "${__VARS}")
else()
message(AUTHOR_WARNING "${__VARS}")
endif()
endfunction()
#
# CMake script hooks support
#
option(OPENCV_DUMP_HOOKS_FLOW "Dump called OpenCV hooks" OFF)
macro(ocv_cmake_hook_append hook_name)
set(__var_name "__OPENCV_CMAKE_HOOKS_${hook_name}")
set(__value "${${__var_name}}")
message(STATUS "Registering hook '${hook_name}': ${ARGN}")
list(APPEND __value ${ARGN})
set(${__var_name} "${__value}" CACHE INTERNAL "")
endmacro()
macro(ocv_cmake_hook hook_name)
set(__var_name "__OPENCV_CMAKE_HOOKS_${hook_name}")
if(OPENCV_DUMP_HOOKS_FLOW)
message(STATUS "Hook ${hook_name} ...")
endif()
foreach(__hook ${${__var_name}})
#message(STATUS "Hook ${hook_name}: calling '${__hook}' ...")
if(COMMAND "${__hook}")
message(FATAL_ERROR "Indirect calling of CMake commands is not supported yet")
else()
include("${__hook}")
endif()
endforeach()
endmacro()
macro(ocv_cmake_reset_hooks)
get_cmake_property(__variableNames VARIABLES)
foreach(__variableName ${__variableNames})
if(__variableName MATCHES "^__OPENCV_CMAKE_HOOKS_")
unset(${__variableName})
unset(${__variableName} CACHE)
endif()
endforeach()
endmacro()
macro(ocv_cmake_hook_register_dir dir)
file(GLOB hook_files RELATIVE "${dir}" "${dir}/*.cmake")
foreach(f ${hook_files})
if(f MATCHES "^(.+)\\.cmake$")
set(hook_name "${CMAKE_MATCH_1}")
ocv_cmake_hook_append(${hook_name} "${dir}/${f}")
endif()
endforeach()
endmacro()
function(ocv_cmake_eval var_name)
if(DEFINED ${var_name})
file(WRITE "${CMAKE_BINARY_DIR}/CMakeCommand-${var_name}.cmake" ${${var_name}})
include("${CMAKE_BINARY_DIR}/CMakeCommand-${var_name}.cmake")
endif()
if(";${ARGN};" MATCHES ";ONCE;")
unset(${var_name} CACHE)
endif()
endfunction()
macro(ocv_cmake_configure file_name var_name)
file(READ "${file_name}" __config)
string(CONFIGURE "${__config}" ${var_name} ${ARGN})
endmacro()
macro(ocv_update VAR)
if(NOT DEFINED ${VAR})
if("x${ARGN}" STREQUAL "x")
set(${VAR} "")
else()
set(${VAR} ${ARGN})
endif()
else()
#ocv_debug_message("Preserve old value for ${VAR}: ${${VAR}}")
endif()
endmacro()
function(_ocv_access_removed_variable VAR ACCESS)
if(ACCESS STREQUAL "MODIFIED_ACCESS")
set(OPENCV_SUPPRESS_MESSAGE_REMOVED_VARIABLE_${VAR} 1 PARENT_SCOPE)
return()
endif()
if(ACCESS MATCHES "UNKNOWN_.*"
AND NOT OPENCV_SUPPRESS_MESSAGE_REMOVED_VARIABLE
AND NOT OPENCV_SUPPRESS_MESSAGE_REMOVED_VARIABLE_${VAR}
)
message(WARNING "OpenCV: Variable has been removed from CMake scripts: ${VAR}")
set(OPENCV_SUPPRESS_MESSAGE_REMOVED_VARIABLE_${VAR} 1 PARENT_SCOPE) # suppress similar messages
endif()
endfunction()
macro(ocv_declare_removed_variable VAR)
if(NOT DEFINED ${VAR}) # don't hit external variables
variable_watch(${VAR} _ocv_access_removed_variable)
endif()
endmacro()
macro(ocv_declare_removed_variables)
foreach(_var ${ARGN})
ocv_declare_removed_variable(${_var})
endforeach()
endmacro()
# Search packages for the host system instead of packages for the target system
# in case of cross compilation these macros should be defined by the toolchain file
if(NOT COMMAND find_host_package)
macro(find_host_package)
find_package(${ARGN})
endmacro()
endif()
if(NOT COMMAND find_host_program)
macro(find_host_program)
find_program(${ARGN})
endmacro()
endif()
# assert macro
# Note: it doesn't support lists in arguments
# Usage samples:
# ocv_assert(MyLib_FOUND)
# ocv_assert(DEFINED MyLib_INCLUDE_DIRS)
macro(ocv_assert)
if(NOT (${ARGN}))
string(REPLACE ";" " " __assert_msg "${ARGN}")
message(AUTHOR_WARNING "Assertion failed: ${__assert_msg}")
endif()
endmacro()
macro(ocv_debug_message)
if(OPENCV_CMAKE_DEBUG_MESSAGES)
string(REPLACE ";" " " __msg "${ARGN}")
message(STATUS "${__msg}")
endif()
endmacro()
macro(ocv_check_environment_variables)
foreach(_var ${ARGN})
if(" ${${_var}}" STREQUAL " " AND DEFINED ENV{${_var}})
set(__value "$ENV{${_var}}")
file(TO_CMAKE_PATH "${__value}" __value) # Assume that we receive paths
set(${_var} "${__value}")
message(STATUS "Update variable ${_var} from environment: ${${_var}}")
endif()
endforeach()
endmacro()
macro(ocv_path_join result_var P1 P2_)
string(REGEX REPLACE "^[/]+" "" P2 "${P2_}")
if("${P1}" STREQUAL "" OR "${P1}" STREQUAL ".")
set(${result_var} "${P2}")
elseif("${P1}" STREQUAL "/")
set(${result_var} "/${P2}")
elseif("${P2}" STREQUAL "")
set(${result_var} "${P1}")
else()
set(${result_var} "${P1}/${P2}")
endif()
string(REPLACE "\\\\" "\\" ${result_var} "${${result_var}}")
string(REPLACE "//" "/" ${result_var} "${${result_var}}")
string(REGEX REPLACE "(^|[/\\])[\\.][/\\]" "\\1" ${result_var} "${${result_var}}")
if("${${result_var}}" STREQUAL "")
set(${result_var} ".")
endif()
#message(STATUS "'${P1}' '${P2_}' => '${${result_var}}'")
endmacro()
# Used to parse Android SDK 'source.properties' files
# File lines format:
# - '<var_name>=<value>' (with possible 'space' symbols around '=')
# - '#<any comment>'
# Parsed values are saved into CMake variables:
# - '${var_prefix}_${var_name}'
# Flags:
# - 'CACHE_VAR <var1> <var2>' - put these properties into CMake internal cache
# - 'MSG_PREFIX <msg>' - prefix string for emitted messages
# - flag 'VALIDATE' - emit messages about missing values from required cached variables
# - flag 'WARNING' - emit CMake WARNING instead of STATUS messages
function(ocv_parse_properties_file file var_prefix)
cmake_parse_arguments(PARSE_PROPERTIES_PARAM "VALIDATE;WARNING" "" "CACHE_VAR;MSG_PREFIX" ${ARGN})
set(__msg_type STATUS)
if(PARSE_PROPERTIES_PARAM_WARNING)
set(__msg_type WARNING)
endif()
if(EXISTS "${file}")
set(SOURCE_PROPERTIES_REGEX "^[ ]*([^=:\n\"' ]+)[ ]*=[ ]*(.*)$")
file(STRINGS "${file}" SOURCE_PROPERTIES_LINES REGEX "^[ ]*[^#].*$")
foreach(line ${SOURCE_PROPERTIES_LINES})
if(line MATCHES "${SOURCE_PROPERTIES_REGEX}")
set(__name "${CMAKE_MATCH_1}")
set(__value "${CMAKE_MATCH_2}")
string(REGEX REPLACE "[^a-zA-Z0-9_]" "_" __name ${__name})
if(";${PARSE_PROPERTIES_PARAM_CACHE_VAR};" MATCHES ";${__name};")
set(${var_prefix}_${__name} "${__value}" CACHE INTERNAL "from ${file}")
else()
set(${var_prefix}_${__name} "${__value}" PARENT_SCOPE)
endif()
else()
message(${__msg_type} "${PARSE_PROPERTIES_PARAM_MSG_PREFIX}Can't parse source property: '${line}' (from ${file})")
endif()
endforeach()
if(PARSE_PROPERTIES_PARAM_VALIDATE)
set(__missing "")
foreach(__name ${PARSE_PROPERTIES_PARAM_CACHE_VAR})
if(NOT DEFINED ${var_prefix}_${__name})
list(APPEND __missing ${__name})
endif()
endforeach()
if(__missing)
message(${__msg_type} "${PARSE_PROPERTIES_PARAM_MSG_PREFIX}Can't read properties '${__missing}' from '${file}'")
endif()
endif()
else()
message(${__msg_type} "${PARSE_PROPERTIES_PARAM_MSG_PREFIX}Can't find file: ${file}")
endif()
endfunction()
# rename modules target to world if needed
macro(_ocv_fix_target target_var)
if(BUILD_opencv_world)
if(OPENCV_MODULE_${${target_var}}_IS_PART_OF_WORLD)
set(${target_var} opencv_world)
endif()
endif()
endmacro()
# check if "sub" (file or dir) is below "dir"
function(ocv_is_subdir res dir sub )
get_filename_component(dir "${dir}" ABSOLUTE)
get_filename_component(sub "${sub}" ABSOLUTE)
file(TO_CMAKE_PATH "${dir}" dir)
file(TO_CMAKE_PATH "${sub}" sub)
set(dir "${dir}/")
string(LENGTH "${dir}" len)
string(LENGTH "${sub}" len_sub)
if(NOT len GREATER len_sub)
string(SUBSTRING "${sub}" 0 ${len} prefix)
endif()
if(prefix AND prefix STREQUAL dir)
set(${res} TRUE PARENT_SCOPE)
else()
set(${res} FALSE PARENT_SCOPE)
endif()
endfunction()
function(ocv_is_opencv_directory result_var dir)
set(result FALSE)
foreach(parent ${OpenCV_SOURCE_DIR} ${OpenCV_BINARY_DIR} ${OPENCV_EXTRA_MODULES_PATH})
ocv_is_subdir(result "${parent}" "${dir}")
if(result)
break()
endif()
endforeach()
set(${result_var} ${result} PARENT_SCOPE)
endfunction()
# adds include directories in such a way that directories from the OpenCV source tree go first
function(ocv_include_directories)
ocv_debug_message("ocv_include_directories( ${ARGN} )")
set(__add_before "")
foreach(dir ${ARGN})
ocv_is_opencv_directory(__is_opencv_dir "${dir}")
if(__is_opencv_dir)
list(APPEND __add_before "${dir}")
elseif(((CV_GCC AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.0") OR CV_CLANG) AND
dir MATCHES "/usr/include$")
# workaround for GCC 6.x bug
else()
include_directories(AFTER SYSTEM "${dir}")
endif()
endforeach()
include_directories(BEFORE ${__add_before})
endfunction()
function(ocv_append_target_property target prop)
get_target_property(val ${target} ${prop})
if(val)
set(val "${val} ${ARGN}")
set_target_properties(${target} PROPERTIES ${prop} "${val}")
else()
set_target_properties(${target} PROPERTIES ${prop} "${ARGN}")
endif()
endfunction()
if(DEFINED OPENCV_DEPENDANT_TARGETS_LIST)
foreach(v ${OPENCV_DEPENDANT_TARGETS_LIST})
unset(${v} CACHE)
endforeach()
unset(OPENCV_DEPENDANT_TARGETS_LIST CACHE)
endif()
function(ocv_append_dependant_targets target)
#ocv_debug_message("ocv_append_dependant_targets(${target} ${ARGN})")
_ocv_fix_target(target)
list(FIND OPENCV_DEPENDANT_TARGETS_LIST "OPENCV_DEPENDANT_TARGETS_${target}" __id)
if(__id EQUAL -1)
list(APPEND OPENCV_DEPENDANT_TARGETS_LIST "OPENCV_DEPENDANT_TARGETS_${target}")
list(SORT OPENCV_DEPENDANT_TARGETS_LIST)
set(OPENCV_DEPENDANT_TARGETS_LIST "${OPENCV_DEPENDANT_TARGETS_LIST}" CACHE INTERNAL "")
endif()
set(OPENCV_DEPENDANT_TARGETS_${target} "${OPENCV_DEPENDANT_TARGETS_${target}};${ARGN}" CACHE INTERNAL "" FORCE)
endfunction()
# adds include directories in such a way that directories from the OpenCV source tree go first
function(ocv_target_include_directories target)
#ocv_debug_message("ocv_target_include_directories(${target} ${ARGN})")
_ocv_fix_target(target)
set(__params "")
if(CV_GCC AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.0" AND
";${ARGN};" MATCHES "/usr/include;")
return() # workaround for GCC 6.x bug
endif()
set(__params "")
set(__system_params "")
set(__var_name __params)
foreach(dir ${ARGN})
if("${dir}" STREQUAL "SYSTEM")
set(__var_name __system_params)
else()
get_filename_component(__abs_dir "${dir}" ABSOLUTE)
ocv_is_opencv_directory(__is_opencv_dir "${dir}")
if(__is_opencv_dir)
list(APPEND ${__var_name} "${__abs_dir}")
else()
list(APPEND ${__var_name} "${dir}")
endif()
endif()
endforeach()
if(HAVE_CUDA OR CMAKE_VERSION VERSION_LESS 2.8.11)
include_directories(${__params})
include_directories(SYSTEM ${__system_params})
else()
if(TARGET ${target})
if(__params)
target_include_directories(${target} PRIVATE ${__params})
if(OPENCV_DEPENDANT_TARGETS_${target})
foreach(t ${OPENCV_DEPENDANT_TARGETS_${target}})
target_include_directories(${t} PRIVATE ${__params})
endforeach()
endif()
endif()
if(__system_params)
target_include_directories(${target} SYSTEM PRIVATE ${__system_params})
if(OPENCV_DEPENDANT_TARGETS_${target})
foreach(t ${OPENCV_DEPENDANT_TARGETS_${target}})
target_include_directories(${t} SYSTEM PRIVATE ${__system_params})
endforeach()
endif()
endif()
else()
if(__params)
set(__new_inc ${OCV_TARGET_INCLUDE_DIRS_${target}})
list(APPEND __new_inc ${__params})
set(OCV_TARGET_INCLUDE_DIRS_${target} "${__new_inc}" CACHE INTERNAL "")
endif()
if(__system_params)
set(__new_inc ${OCV_TARGET_INCLUDE_SYSTEM_DIRS_${target}})
list(APPEND __new_inc ${__system_params})
set(OCV_TARGET_INCLUDE_SYSTEM_DIRS_${target} "${__new_inc}" CACHE INTERNAL "")
endif()
endif()
endif()
endfunction()
# clears all passed variables
macro(ocv_clear_vars)
foreach(_var ${ARGN})
unset(${_var})
unset(${_var} CACHE)
endforeach()
endmacro()
set(OCV_COMPILER_FAIL_REGEX
"argument .* is not valid" # GCC 9+ (including support of unicode quotes)
"command[- ]line option .* is valid for .* but not for C\\+\\+" # GNU
"command[- ]line option .* is valid for .* but not for C" # GNU
"unrecognized .*option" # GNU
"unknown .*option" # Clang
"ignoring unknown option" # MSVC
"warning D9002" # MSVC, any lang
"option .*not supported" # Intel
"[Uu]nknown option" # HP
"[Ww]arning: [Oo]ption" # SunPro
"command option .* is not recognized" # XL
"not supported in this configuration, ignored" # AIX (';' is replaced with ',')
"File with unknown suffix passed to linker" # PGI
"WARNING: unknown flag:" # Open64
)
MACRO(ocv_check_compiler_flag LANG FLAG RESULT)
set(_fname "${ARGN}")
if(NOT DEFINED ${RESULT})
if(_fname)
# nothing
elseif("_${LANG}_" MATCHES "_CXX_")
set(_fname "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.cxx")
if("${CMAKE_CXX_FLAGS} ${FLAG} " MATCHES "-Werror " OR "${CMAKE_CXX_FLAGS} ${FLAG} " MATCHES "-Werror=unknown-pragmas ")
FILE(WRITE "${_fname}" "int main() { return 0; }\n")
else()
FILE(WRITE "${_fname}" "#pragma\nint main() { return 0; }\n")
endif()
elseif("_${LANG}_" MATCHES "_C_")
set(_fname "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c")
if("${CMAKE_C_FLAGS} ${FLAG} " MATCHES "-Werror " OR "${CMAKE_C_FLAGS} ${FLAG} " MATCHES "-Werror=unknown-pragmas ")
FILE(WRITE "${_fname}" "int main(void) { return 0; }\n")
else()
FILE(WRITE "${_fname}" "#pragma\nint main(void) { return 0; }\n")
endif()
elseif("_${LANG}_" MATCHES "_OBJCXX_")
set(_fname "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.mm")
if("${CMAKE_CXX_FLAGS} ${FLAG} " MATCHES "-Werror " OR "${CMAKE_CXX_FLAGS} ${FLAG} " MATCHES "-Werror=unknown-pragmas ")
FILE(WRITE "${_fname}" "int main() { return 0; }\n")
else()
FILE(WRITE "${_fname}" "#pragma\nint main() { return 0; }\n")
endif()
else()
unset(_fname)
endif()
if(_fname)
if(NOT "x${ARGN}" STREQUAL "x")
file(RELATIVE_PATH __msg "${CMAKE_SOURCE_DIR}" "${ARGN}")
set(__msg " (check file: ${__msg})")
else()
set(__msg "")
endif()
if(CMAKE_REQUIRED_LIBRARIES)
set(__link_libs LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(__link_libs)
endif()
set(__cmake_flags "")
if(CMAKE_EXE_LINKER_FLAGS) # CMP0056 do this on new CMake
list(APPEND __cmake_flags "-DCMAKE_EXE_LINKER_FLAGS=${CMAKE_EXE_LINKER_FLAGS}")
endif()
# CMP0067 do this on new CMake
if(DEFINED CMAKE_CXX_STANDARD)
list(APPEND __cmake_flags "-DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}")
endif()
if(DEFINED CMAKE_CXX_STANDARD_REQUIRED)
list(APPEND __cmake_flags "-DCMAKE_CXX_STANDARD_REQUIRED=${CMAKE_CXX_STANDARD_REQUIRED}")
endif()
if(DEFINED CMAKE_CXX_EXTENSIONS)
list(APPEND __cmake_flags "-DCMAKE_CXX_EXTENSIONS=${CMAKE_CXX_EXTENSIONS}")
endif()
MESSAGE(STATUS "Performing Test ${RESULT}${__msg}")
TRY_COMPILE(${RESULT}
"${CMAKE_BINARY_DIR}"
"${_fname}"
CMAKE_FLAGS ${__cmake_flags}
COMPILE_DEFINITIONS "${FLAG}"
${__link_libs}
OUTPUT_VARIABLE OUTPUT)
if(${RESULT})
string(REPLACE ";" "," OUTPUT_LINES "${OUTPUT}")
string(REPLACE "\n" ";" OUTPUT_LINES "${OUTPUT_LINES}")
foreach(_regex ${OCV_COMPILER_FAIL_REGEX})
if(NOT ${RESULT})
break()
endif()
foreach(_line ${OUTPUT_LINES})
if("${_line}" MATCHES "${_regex}")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Build output check failed:\n"
" Regex: '${_regex}'\n"
" Output line: '${_line}'\n")
set(${RESULT} 0)
break()
endif()
endforeach()
endforeach()
endif()
IF(${RESULT})
SET(${RESULT} 1 CACHE INTERNAL "Test ${RESULT}")
MESSAGE(STATUS "Performing Test ${RESULT} - Success")
ELSE(${RESULT})
MESSAGE(STATUS "Performing Test ${RESULT} - Failed")
SET(${RESULT} "" CACHE INTERNAL "Test ${RESULT}")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Compilation failed:\n"
" source file: '${_fname}'\n"
" check option: '${FLAG}'\n"
"===== BUILD LOG =====\n"
"${OUTPUT}\n"
"===== END =====\n\n")
ENDIF(${RESULT})
else()
SET(${RESULT} 0)
endif()
endif()
ENDMACRO()
macro(ocv_check_flag_support lang flag varname base_options)
if(CMAKE_BUILD_TYPE)
set(CMAKE_TRY_COMPILE_CONFIGURATION ${CMAKE_BUILD_TYPE})
endif()
if("_${lang}_" MATCHES "_CXX_")
set(_lang CXX)
elseif("_${lang}_" MATCHES "_C_")
set(_lang C)
elseif("_${lang}_" MATCHES "_OBJCXX_")
set(_lang OBJCXX)
else()
set(_lang ${lang})
endif()
string(TOUPPER "${flag}" ${varname})
string(REGEX REPLACE "^(/|-)" "HAVE_${_lang}_" ${varname} "${${varname}}")
string(REGEX REPLACE " -|-|=| |\\.|," "_" ${varname} "${${varname}}")
ocv_check_compiler_flag("${_lang}" "${base_options} ${flag}" ${${varname}} ${ARGN})
endmacro()
macro(ocv_check_runtime_flag flag result)
set(_fname "${ARGN}")
if(NOT DEFINED ${result})
file(RELATIVE_PATH _rname "${CMAKE_SOURCE_DIR}" "${_fname}")
message(STATUS "Performing Runtime Test ${result} (check file: ${_rname})")
try_run(exec_return compile_result
"${CMAKE_BINARY_DIR}"
"${_fname}"
CMAKE_FLAGS "-DCMAKE_EXE_LINKER_FLAGS=${CMAKE_EXE_LINKER_FLAGS}" # CMP0056 do this on new CMake
COMPILE_DEFINITIONS "${flag}"
OUTPUT_VARIABLE OUTPUT)
if(${compile_result})
if(exec_return EQUAL 0)
set(${result} 1 CACHE INTERNAL "Runtime Test ${result}")
message(STATUS "Performing Runtime Test ${result} - Success")
else()
message(STATUS "Performing Runtime Test ${result} - Failed(${exec_return})")
set(${result} 0 CACHE INTERNAL "Runtime Test ${result}")
endif()
else()
set(${result} 0 CACHE INTERNAL "Runtime Test ${result}")
message(STATUS "Performing Runtime Test ${result} - Compiling Failed")
endif()
if(NOT ${result})
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Runtime Test failed:\n"
" source file: '${_fname}'\n"
" check option: '${flag}'\n"
" exec return: ${exec_return}\n"
"===== BUILD AND RUNTIME LOG =====\n"
"${OUTPUT}\n"
"===== END =====\n\n")
endif()
endif()
endmacro()
# turns off warnings
macro(ocv_warnings_disable)
if(NOT ENABLE_NOISY_WARNINGS)
set(_flag_vars "")
set(_msvc_warnings "")
set(_gxx_warnings "")
set(_icc_warnings "")
foreach(arg ${ARGN})
if(arg MATCHES "^CMAKE_")
list(APPEND _flag_vars ${arg})
elseif(arg MATCHES "^/wd")
list(APPEND _msvc_warnings ${arg})
elseif(arg MATCHES "^-W")
list(APPEND _gxx_warnings ${arg})
elseif(arg MATCHES "^-wd" OR arg MATCHES "^-Qwd" OR arg MATCHES "^/Qwd")
list(APPEND _icc_warnings ${arg})
endif()
endforeach()
if(MSVC AND _msvc_warnings AND _flag_vars)
foreach(var ${_flag_vars})
foreach(warning ${_msvc_warnings})
set(${var} "${${var}} ${warning}")
endforeach()
endforeach()
elseif(((CV_GCC OR CV_CLANG) OR (UNIX AND CV_ICC)) AND _gxx_warnings AND _flag_vars)
foreach(var ${_flag_vars})
foreach(warning ${_gxx_warnings})
if(NOT warning MATCHES "^-Wno-")
string(REGEX REPLACE "(^|[ ]+)${warning}(=[^ ]*)?([ ]+|$)" " " ${var} "${${var}}")
string(REPLACE "-W" "-Wno-" warning "${warning}")
endif()
ocv_check_flag_support(${var} "${warning}" _varname "")
if(${_varname})
set(${var} "${${var}} ${warning}")
endif()
endforeach()
endforeach()
endif()
if(CV_ICC AND _icc_warnings AND _flag_vars)
foreach(var ${_flag_vars})
foreach(warning ${_icc_warnings})
if(UNIX)
string(REPLACE "-Qwd" "-wd" warning "${warning}")
else()
string(REPLACE "-wd" "-Qwd" warning "${warning}")
endif()
ocv_check_flag_support(${var} "${warning}" _varname "")
if(${_varname})
set(${var} "${${var}} ${warning}")
endif()
endforeach()
endforeach()
endif()
unset(_flag_vars)
unset(_msvc_warnings)
unset(_gxx_warnings)
unset(_icc_warnings)
endif(NOT ENABLE_NOISY_WARNINGS)
endmacro()
macro(ocv_append_source_file_compile_definitions source)
get_source_file_property(_value "${source}" COMPILE_DEFINITIONS)
if(_value)
set(_value ${_value} ${ARGN})
else()
set(_value ${ARGN})
endif()
set_source_files_properties("${source}" PROPERTIES COMPILE_DEFINITIONS "${_value}")
endmacro()
macro(add_apple_compiler_options the_module)
ocv_check_flag_support(OBJCXX "-fobjc-exceptions" HAVE_OBJC_EXCEPTIONS "")
if(HAVE_OBJC_EXCEPTIONS)
foreach(source ${OPENCV_MODULE_${the_module}_SOURCES})
if("${source}" MATCHES "\\.mm$")
get_source_file_property(flags "${source}" COMPILE_FLAGS)
if(flags)
set(flags "${_flags} -fobjc-exceptions")
else()
set(flags "-fobjc-exceptions")
endif()
set_source_files_properties("${source}" PROPERTIES COMPILE_FLAGS "${flags}")
endif()
endforeach()
endif()
endmacro()
# Provides an option that the user can optionally select.
# Can accept condition to control when option is available for user.
# Usage:
# option(<option_variable>
# "help string describing the option"
# <initial value or boolean expression>
# [VISIBLE_IF <condition>]
# [VERIFY <condition>])
macro(OCV_OPTION variable description value)
set(__value ${value})
set(__condition "")
set(__verification)
set(__varname "__value")
foreach(arg ${ARGN})
if(arg STREQUAL "IF" OR arg STREQUAL "if" OR arg STREQUAL "VISIBLE_IF")
set(__varname "__condition")
elseif(arg STREQUAL "VERIFY")
set(__varname "__verification")
else()
list(APPEND ${__varname} ${arg})
endif()
endforeach()
unset(__varname)
if(__condition STREQUAL "")
set(__condition 2 GREATER 1)
endif()
if(${__condition})
if(__value MATCHES ";")
if(${__value})
option(${variable} "${description}" ON)
else()
option(${variable} "${description}" OFF)
endif()
elseif(DEFINED ${__value})
if(${__value})
option(${variable} "${description}" ON)
else()
option(${variable} "${description}" OFF)
endif()
else()
option(${variable} "${description}" ${__value})
endif()
else()
if(DEFINED ${variable} AND "${${variable}}" # emit warnings about turned ON options only.
AND NOT (OPENCV_HIDE_WARNING_UNSUPPORTED_OPTION OR "$ENV{OPENCV_HIDE_WARNING_UNSUPPORTED_OPTION}")
)
message(WARNING "Unexpected option: ${variable} (=${${variable}})\nCondition: IF (${__condition})")
endif()
if(OPENCV_UNSET_UNSUPPORTED_OPTION)
unset(${variable} CACHE)
endif()
endif()
if(__verification)
set(OPENCV_VERIFY_${variable} "${__verification}") # variable containing condition to verify
list(APPEND OPENCV_VERIFICATIONS "${variable}") # list of variable names (WITH_XXX;WITH_YYY;...)
endif()
unset(__condition)
unset(__value)
endmacro()
# Check that each variable stored in OPENCV_VERIFICATIONS list
# is consistent with actual detection result (stored as condition in OPENCV_VERIFY_...) variables
function(ocv_verify_config)
set(broken_options)
foreach(var ${OPENCV_VERIFICATIONS})
set(evaluated FALSE)
if(${OPENCV_VERIFY_${var}})
set(evaluated TRUE)
endif()
status("Verifying ${var}=${${var}} => '${OPENCV_VERIFY_${var}}'=${evaluated}")
if (${var} AND NOT evaluated)
list(APPEND broken_options ${var})
message(WARNING
"Option ${var} is enabled but corresponding dependency "
"have not been found: \"${OPENCV_VERIFY_${var}}\" is FALSE")
elseif(NOT ${var} AND evaluated)
list(APPEND broken_options ${var})
message(WARNING
"Option ${var} is disabled or unset but corresponding dependency "
"have been explicitly turned on: \"${OPENCV_VERIFY_${var}}\" is TRUE")
endif()
endforeach()
if(broken_options)
string(REPLACE ";" "\n" broken_options "${broken_options}")
message(FATAL_ERROR
"Some dependencies have not been found or have been forced, "
"unset ENABLE_CONFIG_VERIFICATION option to ignore these failures "
"or change following options:\n${broken_options}")
endif()
endfunction()
# Usage: ocv_append_build_options(HIGHGUI FFMPEG)
macro(ocv_append_build_options var_prefix pkg_prefix)
foreach(suffix INCLUDE_DIRS LIBRARIES LIBRARY_DIRS LINK_LIBRARIES)
if(${pkg_prefix}_${suffix})
list(APPEND ${var_prefix}_${suffix} ${${pkg_prefix}_${suffix}})
list(REMOVE_DUPLICATES ${var_prefix}_${suffix})
endif()
endforeach()
endmacro()
function(ocv_append_source_files_cxx_compiler_options files_var)
set(__flags "${ARGN}")
ocv_check_flag_support(CXX "${__flags}" __HAVE_COMPILER_OPTIONS_VAR "")
if(${__HAVE_COMPILER_OPTIONS_VAR})
foreach(source ${${files_var}})
if("${source}" MATCHES "\\.(cpp|cc|cxx)$")
get_source_file_property(flags "${source}" COMPILE_FLAGS)
if(flags)
set(flags "${flags} ${__flags}")
else()
set(flags "${__flags}")
endif()
set_source_files_properties("${source}" PROPERTIES COMPILE_FLAGS "${flags}")
endif()
endforeach()
endif()
endfunction()
# Usage is similar to CMake 'pkg_check_modules' command
# It additionally controls HAVE_${define} and ${define}_${modname}_FOUND variables
macro(ocv_check_modules define)
unset(HAVE_${define})
foreach(m ${ARGN})
if (m MATCHES "(.*[^><])(>=|=|<=)(.*)")
set(__modname "${CMAKE_MATCH_1}")
else()
set(__modname "${m}")
endif()
unset(${define}_${__modname}_FOUND)
endforeach()
if(PKG_CONFIG_FOUND OR PkgConfig_FOUND)
pkg_check_modules(${define} ${ARGN})
endif()
if(${define}_FOUND)
set(HAVE_${define} 1)
endif()
foreach(m ${ARGN})
if (m MATCHES "(.*[^><])(>=|=|<=)(.*)")
set(__modname "${CMAKE_MATCH_1}")
else()
set(__modname "${m}")
endif()
if(NOT DEFINED ${define}_${__modname}_FOUND AND ${define}_FOUND)
set(${define}_${__modname}_FOUND 1)
endif()
endforeach()
if(${define}_FOUND AND ${define}_LIBRARIES)
if(${define}_LINK_LIBRARIES_XXXXX) # CMake 3.12+: https://gitlab.kitware.com/cmake/cmake/merge_requests/2068
set(${define}_LIBRARIES "${${define}_LINK_LIBRARIES}" CACHE INTERNAL "")
else()
unset(_libs) # absolute paths
unset(_libs_paths) # -L args
foreach(flag ${${define}_LDFLAGS})
if(flag MATCHES "^-L(.*)")
list(APPEND _libs_paths ${CMAKE_MATCH_1})
elseif(IS_ABSOLUTE "${flag}")
list(APPEND _libs "${flag}")
elseif(flag MATCHES "^-l(.*)")
set(_lib "${CMAKE_MATCH_1}")
if(_libs_paths)
find_library(pkgcfg_lib_${define}_${_lib} NAMES ${_lib}
HINTS ${_libs_paths} NO_DEFAULT_PATH)
endif()
find_library(pkgcfg_lib_${define}_${_lib} NAMES ${_lib})
mark_as_advanced(pkgcfg_lib_${define}_${_lib})
if(pkgcfg_lib_${define}_${_lib})
list(APPEND _libs "${pkgcfg_lib_${define}_${_lib}}")
else()
message(WARNING "ocv_check_modules(${define}): can't find library '${_lib}'. Specify 'pkgcfg_lib_${define}_${_lib}' manually")
list(APPEND _libs "${_lib}")
endif()
else()
# -pthread
#message(WARNING "ocv_check_modules(${define}): unknown LDFLAG '${flag}'")
endif()
endforeach()
set(${define}_LINK_LIBRARIES "${_libs}")
set(${define}_LIBRARIES "${_libs}" CACHE INTERNAL "")
unset(_lib)
unset(_libs)
unset(_libs_paths)
endif()
endif()
endmacro()
if(NOT DEFINED CMAKE_ARGC) # Guard CMake standalone invocations
# Use this option carefully, CMake's install() will install symlinks instead of real files
# It is fine for development, but should not be used by real installations
set(__symlink_default OFF) # preprocessing is required for old CMake like 2.8.12
if(DEFINED ENV{BUILD_USE_SYMLINKS})
set(__symlink_default $ENV{BUILD_USE_SYMLINKS})
endif()
OCV_OPTION(BUILD_USE_SYMLINKS "Use symlinks instead of files copying during build (and !!INSTALL!!)" (${__symlink_default}) IF (UNIX OR DEFINED __symlink_default))
if(CMAKE_VERSION VERSION_LESS "3.2")
macro(ocv_cmake_byproducts var_name)
set(${var_name}) # nothing
endmacro()
else()
macro(ocv_cmake_byproducts var_name)
set(${var_name} BYPRODUCTS ${ARGN})
endmacro()
endif()
set(OPENCV_DEPHELPER "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/dephelper" CACHE INTERNAL "")
file(MAKE_DIRECTORY ${OPENCV_DEPHELPER})
if(BUILD_USE_SYMLINKS)
set(__file0 "${CMAKE_CURRENT_LIST_FILE}")
set(__file1 "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/symlink_test")
if(NOT IS_SYMLINK "${__file1}")
execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${__file0}" "${__file1}"
RESULT_VARIABLE SYMLINK_RESULT)
if(NOT SYMLINK_RESULT EQUAL 0)
file(REMOVE "${__file1}")
endif()
if(NOT IS_SYMLINK "${__file1}")
set(BUILD_USE_SYMLINKS 0 CACHE INTERNAL "")
endif()
endif()
if(NOT BUILD_USE_SYMLINKS)
message(STATUS "Build symlinks are not available (disabled)")
endif()
endif()
set(OPENCV_BUILD_INFO_STR "" CACHE INTERNAL "")
function(ocv_output_status msg)
message(STATUS "${msg}")
string(REPLACE "\\" "\\\\" msg "${msg}")
string(REPLACE "\"" "\\\"" msg "${msg}")
string(REGEX REPLACE "^\n+|\n+$" "" msg "${msg}")
if(msg MATCHES "\n")
message(WARNING "String to be inserted to version_string.inc has an unexpected line break: '${msg}'")
string(REPLACE "\n" "\\n" msg "${msg}")
endif()
set(OPENCV_BUILD_INFO_STR "${OPENCV_BUILD_INFO_STR}\"${msg}\\n\"\n" CACHE INTERNAL "")
endfunction()
macro(ocv_finalize_status)
set(OPENCV_BUILD_INFO_FILE "${CMAKE_BINARY_DIR}/version_string.tmp")
if(EXISTS "${OPENCV_BUILD_INFO_FILE}")
file(READ "${OPENCV_BUILD_INFO_FILE}" __content)
else()
set(__content "")
endif()
if("${__content}" STREQUAL "${OPENCV_BUILD_INFO_STR}")
#message(STATUS "${OPENCV_BUILD_INFO_FILE} contains the same content")
else()
file(WRITE "${OPENCV_BUILD_INFO_FILE}" "${OPENCV_BUILD_INFO_STR}")
endif()
unset(__content)
unset(OPENCV_BUILD_INFO_STR CACHE)
if(NOT OPENCV_SKIP_STATUS_FINALIZATION)
if(DEFINED OPENCV_MODULE_opencv_core_BINARY_DIR)
execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different "${OPENCV_BUILD_INFO_FILE}" "${OPENCV_MODULE_opencv_core_BINARY_DIR}/version_string.inc" OUTPUT_QUIET)
endif()
endif()
if(UNIX)
install(FILES "${OpenCV_SOURCE_DIR}/platforms/scripts/valgrind.supp"
"${OpenCV_SOURCE_DIR}/platforms/scripts/valgrind_3rdparty.supp"
DESTINATION "${OPENCV_OTHER_INSTALL_PATH}" COMPONENT "dev")
endif()
endmacro()
# Status report function.
# Automatically align right column and selects text based on condition.
# Usage:
# status(<text>)
# status(<heading> <value1> [<value2> ...])
# status(<heading> <condition> THEN <text for TRUE> ELSE <text for FALSE> )
function(status text)
set(status_cond)
set(status_then)
set(status_else)
set(status_current_name "cond")
foreach(arg ${ARGN})
if(arg STREQUAL "THEN")
set(status_current_name "then")
elseif(arg STREQUAL "ELSE")
set(status_current_name "else")
else()
list(APPEND status_${status_current_name} ${arg})
endif()
endforeach()
if(DEFINED status_cond)
set(status_placeholder_length 32)
string(RANDOM LENGTH ${status_placeholder_length} ALPHABET " " status_placeholder)
string(LENGTH "${text}" status_text_length)
if(status_text_length LESS status_placeholder_length)
string(SUBSTRING "${text}${status_placeholder}" 0 ${status_placeholder_length} status_text)
elseif(DEFINED status_then OR DEFINED status_else)
ocv_output_status("${text}")
set(status_text "${status_placeholder}")
else()
set(status_text "${text}")
endif()
if(DEFINED status_then OR DEFINED status_else)
if(${status_cond})
string(REPLACE ";" " " status_then "${status_then}")
string(REGEX REPLACE "^[ \t]+" "" status_then "${status_then}")
ocv_output_status("${status_text} ${status_then}")
else()
string(REPLACE ";" " " status_else "${status_else}")
string(REGEX REPLACE "^[ \t]+" "" status_else "${status_else}")
ocv_output_status("${status_text} ${status_else}")
endif()
else()
string(REPLACE ";" " " status_cond "${status_cond}")
string(REGEX REPLACE "^[ \t]+" "" status_cond "${status_cond}")
ocv_output_status("${status_text} ${status_cond}")
endif()
else()
ocv_output_status("${text}")
endif()
endfunction()