generate_find_module.template

#
# Finds $name and populates variables and imported targets
# 
# Hints:
#   ${name}_ROOT
#   ${name}_INCLUDEDIR
#   ${name}_LIBRARYDIR
#   ${name}_NO_SYSTEM_PATHS
#
# Variables:
#   ${name}_FOUND
#   ${name}_INCLUDE_DIR
#   ${name}_LIBRARY
# 
# Targets:
#   ${target}
#

set(INCLUDE_SEARCH_PATHS)
set(LIBRARY_SEARCH_PATHS)

if(${name}_ROOT)
    list(APPEND INCLUDE_SEARCH_PATHS $${${name}_ROOT}/include)
    list(APPEND LIBRARY_SEARCH_PATHS $${${name}_ROOT}/lib)
endif()

if(${name}_INCLUDEDIR)
    list(APPEND INCLUDE_SEARCH_PATHS $${${name}_INCLUDEDIR})
endif()

if(${name}_LIBRARYDIR)
    list(APPEND LIBRARY_SEARCH_PATHS $${${name}_LIBRARYDIR})
endif()

find_package(PkgConfig)
pkg_check_modules(PC_${name} QUIET ${package})

list(APPEND INCLUDE_SEARCH_PATHS $${PC_${name}_INCLUDE_DIRS})
list(APPEND LIBRARY_SEARCH_PATHS $${PC_${name}_LIBRARY_DIRS})
set(${name}_VERSION $${PC_${name}_VERSION})


if(${name}_NO_SYSTEM_PATHS)
    find_path(${name}_INCLUDE_DIR
        NAMES ${include}
        PATHS 
            $${INCLUDE_SEARCH_PATHS}
            $${CMAKE_INCLUDE_PATH}
            $${CMAKE_SYSTEM_INCLUDE_PATH}
            $${CMAKE_INSTALL_PREFIX}/include
        NO_DEFAULT_PATH)

    find_library(${name}_LIBRARY
        NAMES ${lib}
        PATHS
            $${LIBRARY_SEARCH_PATHS}
            $${CMAKE_LIBRARY_PATH}
            $${CMAKE_SYSTEM_LIBRARY_PATH}
            $${CMAKE_INSTALL_PREFIX}/lib
        NO_DEFAULT_PATH)
else()
    find_path(${name}_INCLUDE_DIR
        NAMES ${include}
        PATHS $${INCLUDE_SEARCH_PATHS})
    find_library(${name}_LIBRARY
        NAMES ${lib}
        PATHS $${LIBRARY_SEARCH_PATHS})
endif()

mark_as_advanced(
    ${name}_INCLUDE_DIR
    ${name}_LIBRARY)

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(${name}
    FOUND_VAR ${name}_FOUND
    REQUIRED_VARS
        ${name}_LIBRARY
        ${name}_INCLUDE_DIR
    VERSION_VAR ${name}_VERSION)

if(${name}_FOUND)
    set(${name}_LIBRARIES $${${name}_LIBRARY})
    set(${name}_INCLUDE_DIRS $${${name}_INCLUDE_DIR})

    if(NOT TARGET ${target})
        add_library(${target} UNKNOWN IMPORTED)
        set_target_properties(${target} PROPERTIES
            IMPORTED_LOCATION $${${name}_LIBRARY}
            INTERFACE_INCLUDE_DIRECTORIES $${${name}_INCLUDE_DIR})
    endif()
endif()