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if(NOT CasaCore_INCLUDE_DIR)
find_path(CasaCore_INCLUDE_DIR NAMES casacore/casa/version.h
PATHS ${CASACORE_PREFIX} ENV CASACORE_PREFIX CPATHS)
endif()
# Grep version from file
if(EXISTS "${CasaCore_INCLUDE_DIR}/casacore/casa/version.h")
file(READ "${CasaCore_INCLUDE_DIR}/casacore/casa/version.h" version_txt)
if("${version_txt}" MATCHES "CASACORE_MAJOR_VERSION ([0-9]+)")
set(CasaCore_VERSION "${CMAKE_MATCH_0}")
endif()
if("${version_txt}" MATCHES "CASACORE_MINOR_VERSION ([0-9]+)")
set(CasaCore_VERSION "${CasaCore_VERSION}.${CMAKE_MATCH_0}")
endif()
if("${version_txt}" MATCHES "CASACORE_PATCH_VERSION ([0-9]+)")
set(CasaCore_VERSION "${CasaCore_VERSION}.${CMAKE_MATCH_0}")
endif()
endif()
# Define the Casacore components' inter-dependencies.
set(CasaCore_components_DEPENDENCIES coordinates)
set(CasaCore_coordinates_DEPENDENCIES fits)
set(CasaCore_fits_DEPENDENCIES measures)
set(CasaCore_images_DEPENDENCIES components lattices mirlib)
set(CasaCore_lattices_DEPENDENCIES tables scimath)
set(CasaCore_measures_DEPENDENCIES tables scimath)
set(CasaCore_ms_DEPENDENCIES measures)
set(CasaCore_msfits_DEPENDENCIES fits ms)
set(CasaCore_scimath_DEPENDENCIES scimath_f)
set(CasaCore_scimath_f_DEPENDENCIES casa)
set(CasaCore_tables_DEPENDENCIES casa)
# Creates a list with deepest dependency first
# No cmake does not allow recursive function calls
function(casacore_depth_first component output)
set(index 0)
set(all_components ${component})
list(LENGTH all_components last)
while(last GREATER index)
list(GET all_components ${index} item)
foreach(subdep ${CasaCore_${item}_DEPENDENCIES})
list(FIND all_components ${subdep} found)
if(found EQUAL -1)
list(APPEND all_components ${subdep})
endif()
endforeach()
list(LENGTH all_components last)
math(EXPR index "${index} + 1")
endwhile()
list(REVERSE all_components)
set(${output} ${all_components} PARENT_SCOPE)
endfunction()
# Check component and its direct and indirect dependencies exist
# Does not create targets
function(casacore_check_component_dependencies component output)
casacore_depth_first(${component} all_components)
set(found TRUE)
foreach(dependency ${all_components})
find_library(CasaCore_${dependency}_LIBRARY
NAMES casa_${dependency} PATHS ENV CASACORE_PREFIX)
if(NOT CasaCore_${dependency}_LIBRARY)
set(found FALSE)
break()
endif()
endforeach()
set(${output} ${found} PARENT_SCOPE)
endfunction()
# Creates an imported library for the component and each of its direct and indirect dependencies
function(casacore_create_imported_libs component)
casacore_depth_first(${component} all_components)
foreach(subcomponent ${all_components})
if(TARGET casacore::${subcomponent})
continue()
endif()
unset(dependencies)
foreach(subdep ${CasaCore_${subcomponent}_DEPENDENCIES})
list(APPEND dependencies casacore::${subdep})
if(NOT TARGET casacore::${subdep})
message(FATAL_ERROR "internal bug")
endif()
endforeach()
get_filename_component(extension "${CasaCore_${subcomponent}_LIBRARY}" EXT)
if(extension STREQUAL "${CMAKE_SHARED_LIBRARY_SUFFIX}")
add_library(casacore::${subcomponent} SHARED IMPORTED)
elseif(extension STREQUAL "${CMAKE_STATIC_LIBRARY_SUFFIX}")
add_library(casacore::${subcomponent} STATIC IMPORTED)
else()
add_library(casacore::${subcomponent} UNKNOWN IMPORTED)
endif()
set_target_properties(casacore::${subcomponent} PROPERTIES
IMPORTED_LOCATION "${CasaCore_${subcomponent}_LIBRARY}"
INTERFACE_LINK_LIBRARIES "${dependencies}"
INTERFACE_INCLUDE_DIRECTORIES "${CasaCore_INCLUDE_DIR}"
)
set(CasaCore_COMPONENT_${subcomponent}_FOUND TRUE)
list(APPEND CasaCore_LIBRARIES casacore::${subcomponent})
endforeach()
set(CasaCore_LIBRARIES ${CasaCore_LIBRARIES} PARENT_SCOPE)
endfunction()
# Brings together the checks for existence and the imported library creation
function(casacore_add_component_library component)
casacore_check_component_dependencies(${component} allfound)
if(allfound)
casacore_create_imported_libs(${component})
set(CasaCore_LIBRARIES ${CasaCore_LIBRARIES} PARENT_SCOPE)
elseif(NOT allfound AND CasaCore_FIND_REQUIRED_${component})
message(FATAL_ERROR "Dependencies for casa component ${component} could not all be found")
endif()
endfunction()
# adds imported libraries for each requested component and for the core itself
unset(CasaCore_LIBRARIES)
foreach(module casa ${CasaCore_FIND_COMPONENTS})
casacore_add_component_library(${module})
endforeach()
if(CasaCore_LIBRARIES)
list(REMOVE_DUPLICATES CasaCore_LIBRARIES)
endif()
# handle the QUIETLY and REQUIRED arguments and set CASACORE_FOUND to TRUE if.
# all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(CasaCore DEFAULT_MSG CasaCore_LIBRARIES
CasaCore_INCLUDE_DIR CasaCore_VERSION)
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