Build Hunter-compatible config file

CMakeLists.txt

@@ -34,6 +34,8 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #----------------------------------------------------------------------
+SET(CMAKE_POLICY_DEFAULT_CMP0074 NEW)
+
 CMAKE_MINIMUM_REQUIRED( VERSION 3.0 )
 
 # Toggles the use of the hunter package manager
@@ -49,7 +51,7 @@ IF(HUNTER_ENABLED)
   add_definitions(-DASSIMP_USE_HUNTER)
 ENDIF(HUNTER_ENABLED)
 
-PROJECT( Assimp )
+PROJECT( Assimp VERSION 5.0.0 )
 
 # All supported options ###############################################
 
@@ -164,12 +166,11 @@ ELSE()
 ENDIF(NOT BUILD_SHARED_LIBS)
 
 # Define here the needed parameters
-SET (ASSIMP_VERSION_MAJOR 5)
+SET (ASSIMP_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
-SET (ASSIMP_VERSION_MINOR 0)
+SET (ASSIMP_VERSION_MINOR ${PROJECT_VERSION_MINOR})
-SET (ASSIMP_VERSION_PATCH 0)
+SET (ASSIMP_VERSION_PATCH ${PROJECT_VERSION_PATCH})
 SET (ASSIMP_VERSION ${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}.${ASSIMP_VERSION_PATCH})
-SET (ASSIMP_SOVERSION 4)
+SET (ASSIMP_SOVERSION 5)
-SET (PROJECT_VERSION "${ASSIMP_VERSION}")
 
 SET( ASSIMP_PACKAGE_VERSION "0" CACHE STRING "the package-specific version used for uploading the sources" )
 
@@ -353,6 +354,44 @@ IF (NOT TARGET uninstall)
   ADD_CUSTOM_TARGET(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
 ENDIF()
 
+IF(HUNTER_ENABLED)
+  set(CONFIG_INSTALL_DIR "lib/cmake/${PROJECT_NAME}")
+  set(INCLUDE_INSTALL_DIR "include")
+
+  set(GENERATED_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated")
+
+  # Configuration
+  set(VERSION_CONFIG "${GENERATED_DIR}/${PROJECT_NAME}ConfigVersion.cmake")
+  set(PROJECT_CONFIG "${GENERATED_DIR}/${PROJECT_NAME}Config.cmake")
+  set(TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
+  set(NAMESPACE "${PROJECT_NAME}::")
+
+  # Include module with fuction 'write_basic_package_version_file'
+  include(CMakePackageConfigHelpers)
+
+  # Note: PROJECT_VERSION is used as a VERSION
+  write_basic_package_version_file("${VERSION_CONFIG}" COMPATIBILITY SameMajorVersion)
+
+  # Use variables:
+  #   * TARGETS_EXPORT_NAME
+  #   * PROJECT_NAME
+  configure_package_config_file(
+      "cmake/assimp-hunter-config.cmake.in"
+      "${PROJECT_CONFIG}"
+      INSTALL_DESTINATION "${CONFIG_INSTALL_DIR}"
+  )
+
+  install(
+      FILES "${PROJECT_CONFIG}" "${VERSION_CONFIG}"
+      DESTINATION "${CONFIG_INSTALL_DIR}"
+  )
+
+  install(
+      EXPORT "${TARGETS_EXPORT_NAME}"
+      NAMESPACE "${NAMESPACE}"
+      DESTINATION "${CONFIG_INSTALL_DIR}"
+  )
+ELSE(HUNTER_ENABLED)
   # cmake configuration files
   CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimp-config.cmake.in"         "${CMAKE_CURRENT_BINARY_DIR}/assimp-config.cmake" @ONLY IMMEDIATE)
   CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimpTargets.cmake.in"         "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets.cmake" @ONLY IMMEDIATE)
@@ -375,6 +414,7 @@ INSTALL(FILES
     "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets.cmake"
     ${PACKAGE_TARGETS_FILE}
     DESTINATION "${ASSIMP_LIB_INSTALL_DIR}/cmake/assimp-${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}" COMPONENT ${LIBASSIMP-DEV_COMPONENT})
+ENDIF(HUNTER_ENABLED)
 
 FIND_PACKAGE( DirectX )
 

cmake/assimp-hunter-config.cmake.in

@@ -0,0 +1,14 @@
+@PACKAGE_INIT@
+
+find_package(RapidJSON CONFIG REQUIRED)
+find_package(ZLIB CONFIG REQUIRED)
+find_package(utf8 CONFIG REQUIRED)
+find_package(irrXML CONFIG REQUIRED)
+find_package(minizip CONFIG REQUIRED)
+find_package(openddlparser CONFIG REQUIRED)
+find_package(poly2tri CONFIG REQUIRED)
+find_package(polyclipping CONFIG REQUIRED)
+find_package(zip CONFIG REQUIRED)
+
+include("${CMAKE_CURRENT_LIST_DIR}/@TARGETS_EXPORT_NAME@.cmake")
+check_required_components("@PROJECT_NAME@")

code/CMakeLists.txt

@@ -1209,12 +1209,23 @@ IF (RT_FOUND AND ASSIMP_IMPORTER_GLTF_USE_OPEN3DGC)
   TARGET_LINK_LIBRARIES(assimp ${RT_LIBRARY})
 ENDIF (RT_FOUND AND ASSIMP_IMPORTER_GLTF_USE_OPEN3DGC)
 
+IF(HUNTER_ENABLED)
+  INSTALL( TARGETS assimp
+    EXPORT "${TARGETS_EXPORT_NAME}"
+    LIBRARY DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
+    ARCHIVE DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
+    RUNTIME DESTINATION ${ASSIMP_BIN_INSTALL_DIR}
+    FRAMEWORK DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
+    COMPONENT ${LIBASSIMP_COMPONENT}
+    INCLUDES DESTINATION "include")
+ELSE(HUNTER_ENABLED)
 INSTALL( TARGETS assimp
     LIBRARY DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
     ARCHIVE DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
     RUNTIME DESTINATION ${ASSIMP_BIN_INSTALL_DIR}
     FRAMEWORK DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
     COMPONENT ${LIBASSIMP_COMPONENT})
+ENDIF(HUNTER_ENABLED)
 INSTALL( FILES ${PUBLIC_HEADERS} DESTINATION ${ASSIMP_INCLUDE_INSTALL_DIR}/assimp COMPONENT assimp-dev)
 INSTALL( FILES ${COMPILER_HEADERS} DESTINATION ${ASSIMP_INCLUDE_INSTALL_DIR}/assimp/Compiler COMPONENT assimp-dev)