Open Source Computer Vision Library https://opencv.org/
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# Debugging function
function(ocv_cmake_dump_vars)
cmake_parse_arguments(DUMP "" "TOFILE" "" ${ARGN})
set(regex "${DUMP_UNPARSED_ARGUMENTS}")
get_cmake_property(_variableNames VARIABLES)
set(VARS "")
foreach(_variableName ${_variableNames})
if(_variableName MATCHES "${regex}")
set(VARS "${VARS}${_variableName}=${${_variableName}}\n")
endif()
endforeach()
if(DUMP_TOFILE)
file(WRITE ${CMAKE_BINARY_DIR}/${DUMP_TOFILE} "${VARS}")
else()
message(AUTHOR_WARNING "${VARS}")
endif()
endfunction()
# Search packages for host system instead of packages for target system
# in case of cross compilation thess macro should be defined by 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: ${__assert_msg}")
endif()
endmacro()
macro(ocv_debug_message)
# string(REPLACE ";" " " __msg "${ARGN}")
# message(STATUS "${__msg}")
endmacro()
macro(ocv_check_environment_variables)
foreach(_var ${ARGN})
if(NOT DEFINED ${_var} AND DEFINED ENV{${_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()
# 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()
# adds include directories in such 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 ${ARGN})
get_filename_component(__abs_dir "${dir}" ABSOLUTE)
if("${__abs_dir}" MATCHES "^${OpenCV_SOURCE_DIR}" OR "${__abs_dir}" MATCHES "^${OpenCV_BINARY_DIR}")
list(APPEND __add_before "${dir}")
else()
include_directories(AFTER SYSTEM "${dir}")
endif()
endforeach()
include_directories(BEFORE ${__add_before})
endfunction()
# adds include directories in such way that directories from the OpenCV source tree go first
function(ocv_target_include_directories target)
_ocv_fix_target(target)
set(__params "")
foreach(dir ${ARGN})
get_filename_component(__abs_dir "${dir}" ABSOLUTE)
if("${__abs_dir}" MATCHES "^${OpenCV_SOURCE_DIR}" OR "${__abs_dir}" MATCHES "^${OpenCV_BINARY_DIR}")
list(APPEND __params "${__abs_dir}")
else()
list(APPEND __params "${dir}")
endif()
endforeach()
if(HAVE_CUDA OR CMAKE_VERSION VERSION_LESS 2.8.11)
include_directories(${__params})
else()
if(TARGET ${target})
target_include_directories(${target} PRIVATE ${__params})
else()
set(__new_inc "${OCV_TARGET_INCLUDE_DIRS_${target}};${__params}")
set(OCV_TARGET_INCLUDE_DIRS_${target} "${__new_inc}" CACHE INTERNAL "")
endif()
endif()
endfunction()
# clears all passed variables
macro(ocv_clear_vars)
foreach(_var ${ARGN})
unset(${_var} CACHE)
endforeach()
endmacro()
set(OCV_COMPILER_FAIL_REGEX
"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
"File with unknown suffix passed to linker" # PGI
"WARNING: unknown flag:" # Open64
)
MACRO(ocv_check_compiler_flag LANG FLAG RESULT)
if(NOT DEFINED ${RESULT})
if("_${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)
MESSAGE(STATUS "Performing Test ${RESULT}")
TRY_COMPILE(${RESULT}
"${CMAKE_BINARY_DIR}"
"${_fname}"
COMPILE_DEFINITIONS "${FLAG}"
OUTPUT_VARIABLE OUTPUT)
FOREACH(_regex ${OCV_COMPILER_FAIL_REGEX})
IF("${OUTPUT}" MATCHES "${_regex}")
SET(${RESULT} 0)
break()
ENDIF()
ENDFOREACH()
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 ${RESULT}")
ENDIF(${RESULT})
else()
SET(${RESULT} 0)
endif()
endif()
ENDMACRO()
macro(ocv_check_flag_support lang flag varname)
if("_${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}" "${ARGN} ${flag}" ${${varname}})
endmacro()
# turns off warnings
macro(ocv_warnings_disable)
if(NOT ENABLE_NOISY_WARNINGS)
set(_flag_vars "")
set(_msvc_warnings "")
set(_gxx_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})
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((CMAKE_COMPILER_IS_GNUCXX OR (UNIX AND CV_ICC)) AND _gxx_warnings AND _flag_vars)
foreach(var ${_flag_vars})
foreach(warning ${_gxx_warnings})
if(NOT warning MATCHES "^-Wno-")
string(REPLACE "${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()
unset(_flag_vars)
unset(_msvc_warnings)
unset(_gxx_warnings)
endif(NOT ENABLE_NOISY_WARNINGS)
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> [IF <condition>])
macro(OCV_OPTION variable description value)
set(__value ${value})
set(__condition "")
set(__varname "__value")
foreach(arg ${ARGN})
if(arg STREQUAL "IF" OR arg STREQUAL "if")
set(__varname "__condition")
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}" ${__value})
endif()
else()
unset(${variable} CACHE)
endif()
unset(__condition)
unset(__value)
endmacro()
# Macros that checks if module have been installed.
# After it adds module to build and define
# constants passed as second arg
macro(CHECK_MODULE module_name define)
set(${define} 0)
if(PKG_CONFIG_FOUND)
set(ALIAS ALIASOF_${module_name})
set(ALIAS_FOUND ${ALIAS}_FOUND)
set(ALIAS_INCLUDE_DIRS ${ALIAS}_INCLUDE_DIRS)
set(ALIAS_LIBRARY_DIRS ${ALIAS}_LIBRARY_DIRS)
set(ALIAS_LIBRARIES ${ALIAS}_LIBRARIES)
PKG_CHECK_MODULES(${ALIAS} ${module_name})
if(${ALIAS_FOUND})
set(${define} 1)
foreach(P "${ALIAS_INCLUDE_DIRS}")
if(${P})
list(APPEND VIDEOIO_INCLUDE_DIRS ${${P}})
list(APPEND HIGHGUI_INCLUDE_DIRS ${${P}})
endif()
endforeach()
foreach(P "${ALIAS_LIBRARY_DIRS}")
if(${P})
list(APPEND VIDEOIO_LIBRARY_DIRS ${${P}})
list(APPEND HIGHGUI_LIBRARY_DIRS ${${P}})
endif()
endforeach()
list(APPEND VIDEOIO_LIBRARIES ${${ALIAS_LIBRARIES}})
list(APPEND HIGHGUI_LIBRARIES ${${ALIAS_LIBRARIES}})
endif()
endif()
endmacro()
set(OPENCV_BUILD_INFO_FILE "${OpenCV_BINARY_DIR}/version_string.tmp")
file(REMOVE "${OPENCV_BUILD_INFO_FILE}")
function(ocv_output_status msg)
message(STATUS "${msg}")
string(REPLACE "\\" "\\\\" msg "${msg}")
string(REPLACE "\"" "\\\"" msg "${msg}")
file(APPEND "${OPENCV_BUILD_INFO_FILE}" "\"${msg}\\n\"\n")
endfunction()
macro(ocv_finalize_status)
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()
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()
# remove all matching elements from the list
macro(ocv_list_filterout lst regex)
foreach(item ${${lst}})
if(item MATCHES "${regex}")
list(REMOVE_ITEM ${lst} "${item}")
endif()
endforeach()
endmacro()
# stable & safe duplicates removal macro
macro(ocv_list_unique __lst)
if(${__lst})
list(REMOVE_DUPLICATES ${__lst})
endif()
endmacro()
# safe list reversal macro
macro(ocv_list_reverse __lst)
if(${__lst})
list(REVERSE ${__lst})
endif()
endmacro()
# safe list sorting macro
macro(ocv_list_sort __lst)
if(${__lst})
list(SORT ${__lst})
endif()
endmacro()
# add prefix to each item in the list
macro(ocv_list_add_prefix LST PREFIX)
set(__tmp "")
foreach(item ${${LST}})
list(APPEND __tmp "${PREFIX}${item}")
endforeach()
set(${LST} ${__tmp})
unset(__tmp)
endmacro()
# add suffix to each item in the list
macro(ocv_list_add_suffix LST SUFFIX)
set(__tmp "")
foreach(item ${${LST}})
list(APPEND __tmp "${item}${SUFFIX}")
endforeach()
set(${LST} ${__tmp})
unset(__tmp)
endmacro()
# gets and removes the first element from list
macro(ocv_list_pop_front LST VAR)
if(${LST})
list(GET ${LST} 0 ${VAR})
list(REMOVE_AT ${LST} 0)
else()
set(${VAR} "")
endif()
endmacro()
# simple regex escaping routine (does not cover all cases!!!)
macro(ocv_regex_escape var regex)
string(REGEX REPLACE "([+.*^$])" "\\\\1" ${var} "${regex}")
endmacro()
# convert list of paths to full paths
macro(ocv_convert_to_full_paths VAR)
if(${VAR})
set(__tmp "")
foreach(path ${${VAR}})
get_filename_component(${VAR} "${path}" ABSOLUTE)
list(APPEND __tmp "${${VAR}}")
endforeach()
set(${VAR} ${__tmp})
unset(__tmp)
endif()
endmacro()
# convert list of paths to libraries names without lib prefix
macro(ocv_convert_to_lib_name var)
set(__tmp "")
foreach(path ${ARGN})
get_filename_component(__tmp_name "${path}" NAME_WE)
string(REGEX REPLACE "^lib" "" __tmp_name ${__tmp_name})
list(APPEND __tmp "${__tmp_name}")
endforeach()
set(${var} ${__tmp})
unset(__tmp)
unset(__tmp_name)
endmacro()
# add install command
function(ocv_install_target)
install(TARGETS ${ARGN})
set(isPackage 0)
unset(__package)
unset(__target)
foreach(e ${ARGN})
if(NOT DEFINED __target)
set(__target "${e}")
endif()
if(isPackage EQUAL 1)
set(__package "${e}")
break()
endif()
if(e STREQUAL "EXPORT")
set(isPackage 1)
endif()
endforeach()
if(DEFINED __package)
list(APPEND ${__package}_TARGETS ${__target})
set(${__package}_TARGETS "${${__package}_TARGETS}" CACHE INTERNAL "List of ${__package} targets")
endif()
if(INSTALL_CREATE_DISTRIB)
if(MSVC AND NOT BUILD_SHARED_LIBS)
set(__target "${ARGV0}")
set(isArchive 0)
set(isDst 0)
unset(__dst)
foreach(e ${ARGN})
if(isDst EQUAL 1)
set(__dst "${e}")
break()
endif()
if(isArchive EQUAL 1 AND e STREQUAL "DESTINATION")
set(isDst 1)
endif()
if(e STREQUAL "ARCHIVE")
set(isArchive 1)
else()
set(isArchive 0)
endif()
endforeach()
# message(STATUS "Process ${__target} dst=${__dst}...")
if(DEFINED __dst)
if(CMAKE_VERSION VERSION_LESS 2.8.12)
get_target_property(fname ${__target} LOCATION_DEBUG)
if(fname MATCHES "\\.lib$")
string(REGEX REPLACE "\\.lib$" ".pdb" fname "${fname}")
install(FILES ${fname} DESTINATION ${__dst} CONFIGURATIONS Debug)
endif()
get_target_property(fname ${__target} LOCATION_RELEASE)
if(fname MATCHES "\\.lib$")
string(REGEX REPLACE "\\.lib$" ".pdb" fname "${fname}")
install(FILES ${fname} DESTINATION ${__dst} CONFIGURATIONS Release)
endif()
else()
# CMake 2.8.12 brokes PDB support in STATIC libraries for MSVS
endif()
endif()
endif()
endif()
endfunction()
# read set of version defines from the header file
macro(ocv_parse_header FILENAME FILE_VAR)
set(vars_regex "")
set(__parnet_scope OFF)
set(__add_cache OFF)
foreach(name ${ARGN})
if("${name}" STREQUAL "PARENT_SCOPE")
set(__parnet_scope ON)
elseif("${name}" STREQUAL "CACHE")
set(__add_cache ON)
elseif(vars_regex)
set(vars_regex "${vars_regex}|${name}")
else()
set(vars_regex "${name}")
endif()
endforeach()
if(EXISTS "${FILENAME}")
file(STRINGS "${FILENAME}" ${FILE_VAR} REGEX "#define[ \t]+(${vars_regex})[ \t]+[0-9]+" )
else()
unset(${FILE_VAR})
endif()
foreach(name ${ARGN})
if(NOT "${name}" STREQUAL "PARENT_SCOPE" AND NOT "${name}" STREQUAL "CACHE")
if(${FILE_VAR})
if(${FILE_VAR} MATCHES ".+[ \t]${name}[ \t]+([0-9]+).*")
string(REGEX REPLACE ".+[ \t]${name}[ \t]+([0-9]+).*" "\\1" ${name} "${${FILE_VAR}}")
else()
set(${name} "")
endif()
if(__add_cache)
set(${name} ${${name}} CACHE INTERNAL "${name} parsed from ${FILENAME}" FORCE)
elseif(__parnet_scope)
set(${name} "${${name}}" PARENT_SCOPE)
endif()
else()
unset(${name} CACHE)
endif()
endif()
endforeach()
endmacro()
# read single version define from the header file
macro(ocv_parse_header2 LIBNAME HDR_PATH VARNAME)
ocv_clear_vars(${LIBNAME}_VERSION_MAJOR
${LIBNAME}_VERSION_MAJOR
${LIBNAME}_VERSION_MINOR
${LIBNAME}_VERSION_PATCH
${LIBNAME}_VERSION_TWEAK
${LIBNAME}_VERSION_STRING)
set(${LIBNAME}_H "")
if(EXISTS "${HDR_PATH}")
file(STRINGS "${HDR_PATH}" ${LIBNAME}_H REGEX "^#define[ \t]+${VARNAME}[ \t]+\"[^\"]*\".*$" LIMIT_COUNT 1)
endif()
if(${LIBNAME}_H)
string(REGEX REPLACE "^.*[ \t]${VARNAME}[ \t]+\"([0-9]+).*$" "\\1" ${LIBNAME}_VERSION_MAJOR "${${LIBNAME}_H}")
string(REGEX REPLACE "^.*[ \t]${VARNAME}[ \t]+\"[0-9]+\\.([0-9]+).*$" "\\1" ${LIBNAME}_VERSION_MINOR "${${LIBNAME}_H}")
string(REGEX REPLACE "^.*[ \t]${VARNAME}[ \t]+\"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1" ${LIBNAME}_VERSION_PATCH "${${LIBNAME}_H}")
set(${LIBNAME}_VERSION_MAJOR ${${LIBNAME}_VERSION_MAJOR} ${ARGN})
set(${LIBNAME}_VERSION_MINOR ${${LIBNAME}_VERSION_MINOR} ${ARGN})
set(${LIBNAME}_VERSION_PATCH ${${LIBNAME}_VERSION_PATCH} ${ARGN})
set(${LIBNAME}_VERSION_STRING "${${LIBNAME}_VERSION_MAJOR}.${${LIBNAME}_VERSION_MINOR}.${${LIBNAME}_VERSION_PATCH}")
# append a TWEAK version if it exists:
set(${LIBNAME}_VERSION_TWEAK "")
if("${${LIBNAME}_H}" MATCHES "^.*[ \t]${VARNAME}[ \t]+\"[0-9]+\\.[0-9]+\\.[0-9]+\\.([0-9]+).*$")
set(${LIBNAME}_VERSION_TWEAK "${CMAKE_MATCH_1}" ${ARGN})
endif()
if(${LIBNAME}_VERSION_TWEAK)
set(${LIBNAME}_VERSION_STRING "${${LIBNAME}_VERSION_STRING}.${${LIBNAME}_VERSION_TWEAK}" ${ARGN})
else()
set(${LIBNAME}_VERSION_STRING "${${LIBNAME}_VERSION_STRING}" ${ARGN})
endif()
endif()
endmacro()
# read single version info from the pkg file
macro(ocv_parse_pkg LIBNAME PKG_PATH SCOPE)
if(EXISTS "${PKG_PATH}/${LIBNAME}.pc")
file(STRINGS "${PKG_PATH}/${LIBNAME}.pc" line_to_parse REGEX "^Version:[ \t]+[0-9.]*.*$" LIMIT_COUNT 1)
STRING(REGEX REPLACE ".*Version: ([^ ]+).*" "\\1" ALIASOF_${LIBNAME}_VERSION "${line_to_parse}" )
endif()
endmacro()
################################################################################################
# short command to setup source group
function(ocv_source_group group)
if(BUILD_opencv_world AND OPENCV_MODULE_${the_module}_IS_PART_OF_WORLD)
set(group "${the_module}\\${group}")
endif()
cmake_parse_arguments(SG "" "DIRBASE" "GLOB;GLOB_RECURSE;FILES" ${ARGN})
set(files "")
if(SG_FILES)
list(APPEND files ${SG_FILES})
endif()
if(SG_GLOB)
file(GLOB srcs ${SG_GLOB})
list(APPEND files ${srcs})
endif()
if(SG_GLOB_RECURSE)
file(GLOB_RECURSE srcs ${SG_GLOB_RECURSE})
list(APPEND files ${srcs})
endif()
if(SG_DIRBASE)
foreach(f ${files})
file(RELATIVE_PATH fpart "${SG_DIRBASE}" "${f}")
if(fpart MATCHES "^\\.\\.")
message(AUTHOR_WARNING "Can't detect subpath for source_group command: Group=${group} FILE=${f} DIRBASE=${SG_DIRBASE}")
set(fpart "")
else()
get_filename_component(fpart "${fpart}" PATH)
if(fpart)
set(fpart "/${fpart}") # add '/'
string(REPLACE "/" "\\" fpart "${fpart}")
endif()
endif()
source_group("${group}${fpart}" FILES ${f})
endforeach()
else()
source_group(${group} FILES ${files})
endif()
endfunction()
function(ocv_target_link_libraries target)
_ocv_fix_target(target)
set(LINK_DEPS ${ARGN})
# process world
if(BUILD_opencv_world)
foreach(m ${OPENCV_MODULES_BUILD})
if(OPENCV_MODULE_${m}_IS_PART_OF_WORLD)
if(";${LINK_DEPS};" MATCHES ";${m};")
list(REMOVE_ITEM LINK_DEPS ${m})
if(NOT (";${LINK_DEPS};" MATCHES ";opencv_world;"))
list(APPEND LINK_DEPS opencv_world)
endif()
endif()
endif()
endforeach()
endif()
target_link_libraries(${target} ${LINK_DEPS})
endfunction()
function(_ocv_append_target_includes target)
if(DEFINED OCV_TARGET_INCLUDE_DIRS_${target})
target_include_directories(${target} PRIVATE ${OCV_TARGET_INCLUDE_DIRS_${target}})
if (TARGET ${target}_object)
target_include_directories(${target}_object PRIVATE ${OCV_TARGET_INCLUDE_DIRS_${target}})
endif()
unset(OCV_TARGET_INCLUDE_DIRS_${target} CACHE)
endif()
endfunction()
function(ocv_add_executable target)
add_executable(${target} ${ARGN})
_ocv_append_target_includes(${target})
endfunction()
function(ocv_add_library target)
set(cuda_objs "")
if(HAVE_CUDA)
set(cuda_srcs "")
foreach(var ${ARGN})
if(var MATCHES ".cu")
list(APPEND cuda_srcs ${var})
endif()
endforeach()
if(cuda_srcs)
ocv_include_directories(${CUDA_INCLUDE_DIRS})
ocv_cuda_compile(cuda_objs ${lib_cuda_srcs} ${lib_cuda_hdrs})
endif()
set(OPENCV_MODULE_${target}_CUDA_OBJECTS ${cuda_objs} CACHE INTERNAL "Compiled CUDA object files")
endif()
add_library(${target} ${ARGN} ${cuda_objs})
# Add OBJECT library (added in cmake 2.8.8) to use in compound modules
if (NOT CMAKE_VERSION VERSION_LESS "2.8.8"
AND NOT OPENCV_MODULE_${target}_CHILDREN
AND NOT OPENCV_MODULE_${target}_CLASS STREQUAL "BINDINGS"
AND NOT ${target} STREQUAL "opencv_ts"
)
set(sources ${ARGN})
ocv_list_filterout(sources "\\\\.(cl|inc)$")
add_library(${target}_object OBJECT ${sources})
set_target_properties(${target}_object PROPERTIES
EXCLUDE_FROM_ALL True
EXCLUDE_FROM_DEFAULT_BUILD True
POSITION_INDEPENDENT_CODE True
)
if (ENABLE_SOLUTION_FOLDERS)
set_target_properties(${target}_object PROPERTIES FOLDER "object_libraries")
endif()
unset(sources)
endif()
_ocv_append_target_includes(${target})
endfunction()
# build the list of opencv libs and dependencies for all modules
# _modules - variable to hold list of all modules
# _extra - variable to hold list of extra dependencies
# _3rdparty - variable to hold list of prebuilt 3rdparty libraries
macro(ocv_get_all_libs _modules _extra _3rdparty)
set(${_modules} "")
set(${_extra} "")
set(${_3rdparty} "")
foreach(m ${OPENCV_MODULES_PUBLIC})
if(TARGET ${m})
get_target_property(deps ${m} INTERFACE_LINK_LIBRARIES)
if(NOT deps)
set(deps "")
endif()
else()
set(deps "")
endif()
list(INSERT ${_modules} 0 ${deps} ${m})
foreach (dep ${deps} ${OPENCV_LINKER_LIBS})
if (NOT DEFINED OPENCV_MODULE_${dep}_LOCATION)
if (TARGET ${dep})
get_target_property(_output ${dep} ARCHIVE_OUTPUT_DIRECTORY)
if ("${_output}" STREQUAL "${3P_LIBRARY_OUTPUT_PATH}")
list(INSERT ${_3rdparty} 0 ${dep})
else()
list(INSERT ${_extra} 0 ${dep})
endif()
else()
list(INSERT ${_extra} 0 ${dep})
endif()
endif()
endforeach()
endforeach()
# ippicv specific handling
list(FIND ${_extra} "ippicv" ippicv_idx)
if (${ippicv_idx} GREATER -1)
list(REMOVE_ITEM ${_extra} "ippicv")
list(INSERT ${_3rdparty} 0 "ippicv")
endif()
# split 3rdparty libs and modules
list(REMOVE_ITEM ${_modules} ${${_3rdparty}} ${${_extra}} non_empty_list)
# convert CMake lists to makefile literals
foreach(lst ${_modules} ${_3rdparty} ${_extra})
ocv_list_unique(${lst})
ocv_list_reverse(${lst})
endforeach()
endmacro()