Open Source Computer Vision Library https://opencv.org/
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# 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()
# 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 option" <initial value> [IF <condition>])
macro(OCV_OPTION variable description value)
SET(__condition ${ARGN})
if("${__condition}" STREQUAL "")
SET(__condition 1)
endif()
list(REMOVE_ITEM __condition "IF" "if")
if(${__condition})
OPTION(${variable} "${description}" ${value})
else()
UNSET(${variable} CACHE)
endif()
UNSET(__condition)
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 HIGHGUI_INCLUDE_DIRS ${${P}})
endif()
endforeach()
foreach(P "${ALIAS_LIBRARY_DIRS}")
if (${P})
list(APPEND HIGHGUI_LIBRARY_DIRS ${${P}})
endif()
endforeach()
list(APPEND HIGHGUI_LIBRARIES ${${ALIAS_LIBRARIES}})
endif()
endif()
endmacro()
# Status report macro.
# 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> )
macro(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 ${status_placeholder_length} status_text)
elseif (DEFINED status_then OR DEFINED status_else)
message(STATUS "${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}")
message(STATUS "${status_text}" "${status_then}")
else()
string(REPLACE ";" " " status_else "${status_else}")
message(STATUS "${status_text}" "${status_else}")
endif()
else()
string(REPLACE ";" " " status_cond "${status_cond}")
message(STATUS "${status_text}" "${status_cond}")
endif()
else()
message(STATUS "${text}")
endif()
endmacro()