cmake - install headers using PUBLIC_HEADER, deprecate INCLUDEDIR

cmake/CMakeLists.txt

@@ -170,14 +170,6 @@ endif()
 
 include(GNUInstallDirs)
 
-if(NOT INCLUDEDIR)
-    set(INCLUDEDIR include)
-endif()
-if(NOT IS_ABSOLUTE ${INCLUDEDIR})
-    set(INCLUDEDIR ${CMAKE_INSTALL_INCLUDEDIR})
-endif()
-message(STATUS "INCLUDEDIR: ${INCLUDEDIR}")
-
 set(IFCOPENSHELL_EXPORT_TARGETS "${PROJECT_NAME}Targets")
 
 # On Windows Release and Debug binaries are not compatible.

src/ifcgeom/CMakeLists.txt

@@ -14,7 +14,13 @@ file(GLOB SCHEMA_AGNOSTIC_CPP_FILES *.cpp)
 set(SCHEMA_AGNOSTIC_FILES ${SCHEMA_AGNOSTIC_H_FILES} ${SCHEMA_AGNOSTIC_CPP_FILES})
 
 add_library(IfcGeom ${SCHEMA_AGNOSTIC_FILES})
-set_target_properties(IfcGeom PROPERTIES COMPILE_FLAGS -DIFC_GEOM_EXPORTS VERSION "${PROJECT_VERSION}" SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}")
+set_target_properties(IfcGeom
+    PROPERTIES
+    COMPILE_FLAGS -DIFC_GEOM_EXPORTS
+    VERSION "${PROJECT_VERSION}"
+    SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}"
+    PUBLIC_HEADER "${SCHEMA_AGNOSTIC_H_FILES}"
+)
 
 if(UNIX)
     find_package(Threads)
@@ -33,7 +39,5 @@ endif()
 
 install(TARGETS IfcGeom
     EXPORT ${IFCOPENSHELL_EXPORT_TARGETS}
-)
-install(FILES ${SCHEMA_AGNOSTIC_H_FILES}
-    DESTINATION ${INCLUDEDIR}/ifcgeom
+    PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/ifcgeom"
 )

src/ifcgeom/Serialization/CMakeLists.txt

@@ -1,18 +1,19 @@
 add_subdirectory(schema)
 
 add_library(geometry_serializer STATIC Serialization.cpp)
-set_target_properties(geometry_serializer PROPERTIES COMPILE_FLAGS "-DIFC_GEOMSERIALIZATION_EXPORTS")
+file(GLOB IFCGEOM_SERIALIZATION_H_FILE *.h)
+
+set_target_properties(geometry_serializer PROPERTIES
+    COMPILE_FLAGS "-DIFC_GEOMSERIALIZATION_EXPORTS"
+    PUBLIC_HEADER "${IFCGEOM_SERIALIZATION_H_FILE}"
+)
 target_link_libraries(geometry_serializer ${geometry_serializer_libraries} IfcParse)
 set(IFCOPENSHELL_LIBRARIES ${IFCOPENSHELL_LIBRARIES} "geometry_serializer" ${geometry_serializer_libraries})
 set(IFCOPENSHELL_LIBRARIES ${IFCOPENSHELL_LIBRARIES} PARENT_SCOPE)
 
-file(GLOB IFCGEOM_SERIALIZATION_H_FILE *.h)
-install(FILES ${IFCGEOM_SERIALIZATION_H_FILE}
-    DESTINATION ${INCLUDEDIR}/ifcgeom/Serialization
-)
-
 install(TARGETS geometry_serializer ${geometry_serializer_libraries}
     EXPORT ${IFCOPENSHELL_EXPORT_TARGETS}
+    PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/ifcgeom/Serialization"
 )
 
 set(geometry_serializer_libraries ${geometry_serializer_libraries} PARENT_SCOPE)

src/ifcgeom/kernels/CMakeLists.txt

@@ -9,11 +9,15 @@ foreach(kernel ${GEOMETRY_KERNELS})
     set(KERNEL_TARGET "geometry_kernel_${kernel}")
 
     add_library(${KERNEL_TARGET} OBJECT ${IFCGEOM_FILES})
-    set_property(TARGET ${KERNEL_TARGET} APPEND PROPERTY COMPILE_FLAGS "-DIFC_GEOM_EXPORTS")
+    set_target_properties(${KERNEL_TARGET} PROPERTIES
+        COMPILE_FLAGS "-DIFC_GEOM_EXPORTS"
+        PUBLIC_HEADER "${IFCGEOM_H_FILES}"
+    )
     list(APPEND kernel_libraries ${KERNEL_TARGET})
     target_link_libraries(${KERNEL_TARGET} ${${KERNEL_UPPER}_LIBRARIES} Eigen3::Eigen)
     install(TARGETS ${KERNEL_TARGET}
         EXPORT ${IFCOPENSHELL_EXPORT_TARGETS}
+        PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/ifcgeom/kernels/${kernel}"
     )
 
     if(${kernel} STREQUAL "cgal")
@@ -33,10 +37,6 @@ foreach(kernel ${GEOMETRY_KERNELS})
     elseif(${kernel} STREQUAL "opencascade")
         target_link_libraries(${KERNEL_TARGET} ${OpenCASCADE_LIBRARIES})
     endif()
-
-    install(FILES ${IFCGEOM_H_FILES}
-        DESTINATION ${INCLUDEDIR}/ifcgeom/kernels/${kernel}
-    )
 endforeach()
 
 set(kernel_libraries ${kernel_libraries} PARENT_SCOPE)

src/ifcparse/CMakeLists.txt

@@ -31,7 +31,13 @@ endforeach()
 set(IFCPARSE_FILES ${IFCPARSE_CPP_FILES} ${IFCPARSE_H_FILES})
 
 add_library(IfcParse ${IFCPARSE_FILES})
-set_target_properties(IfcParse PROPERTIES COMPILE_FLAGS -DIFC_PARSE_EXPORTS VERSION "${PROJECT_VERSION}" SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}")
+set_target_properties(IfcParse
+    PROPERTIES
+    COMPILE_FLAGS -DIFC_PARSE_EXPORTS
+    VERSION "${PROJECT_VERSION}"
+    SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}"
+    PUBLIC_HEADER "${IFCPARSE_H_FILES}"
+)
 
 if(IFCXML_SUPPORT)
     find_package(LibXml2 REQUIRED)
@@ -47,11 +53,8 @@ else()
     target_link_libraries(IfcParse ${Boost_LIBRARIES} ${BCRYPT_LIBRARIES})
 endif()
 
-# CMake installation targets
-install(FILES ${IFCPARSE_H_FILES}
-    DESTINATION ${INCLUDEDIR}/ifcparse
-)
 
 install(TARGETS IfcParse
     EXPORT ${IFCOPENSHELL_EXPORT_TARGETS}
+    PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/ifcparse"
 )

src/serializers/CMakeLists.txt

@@ -5,7 +5,11 @@ file(GLOB SERIALIZERS_CPP_FILES *.cpp)
 set(SERIALIZERS_FILES ${SERIALIZERS_H_FILES} ${SERIALIZERS_CPP_FILES})
 
 add_library(Serializers ${SERIALIZERS_FILES})
-set_target_properties(Serializers PROPERTIES COMPILE_FLAGS "-DSERIALIZERS_EXPORTS" VERSION "${PROJECT_VERSION}" SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}")
+set_target_properties(Serializers PROPERTIES
+    COMPILE_FLAGS "-DSERIALIZERS_EXPORTS"
+    VERSION "${PROJECT_VERSION}"
+    SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}"
+)
 set(SERIALIZER_SCHEMA_LIBRARIES Serializers ${SERIALIZER_SCHEMA_LIBRARIES} PARENT_SCOPE)
 
 if(WITH_PROJ)
@@ -25,10 +29,10 @@ target_link_libraries(Serializers
 
 install(TARGETS Serializers)
 
+# Can't use `PUBLIC_HEADER` since we need two folders.
 install(FILES ${SERIALIZERS_H_FILES}
-    DESTINATION ${INCLUDEDIR}/serializers/
+    DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/serializers/"
 )
-
 install(FILES ${SERIALIZERS_S_H_FILES}
-    DESTINATION ${INCLUDEDIR}/serializers/schema_dependent
+    DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/serializers/schema_dependent"
 )

src/svgfill/CMakeLists.txt

@@ -10,16 +10,6 @@ if(POLICY CMP0167) # 3.30 find_package(Boost) to use BoostConfig instead of Find
     cmake_policy(SET CMP0167 OLD)
 endif()
 
-include(GNUInstallDirs)
-
-
-if(NOT INCLUDEDIR)
-    set(INCLUDEDIR include)
-endif()
-if(NOT IS_ABSOLUTE ${INCLUDEDIR})
-    set(INCLUDEDIR ${CMAKE_INSTALL_INCLUDEDIR})
-endif()
-message(STATUS "INCLUDEDIR: ${INCLUDEDIR}")
 
 if(WIN32 AND NOT DEFINED ENV{CONDA_BUILD})
 	set(Boost_USE_STATIC_LIBS ON)
@@ -57,6 +47,9 @@ file(GLOB LIB_CPP_FILES src/svgfill.cpp src/arrange_polygons.cpp)
 set(LIB_SRC_FILES ${LIB_H_FILES} ${LIB_CPP_FILES})
 add_library(svgfill ${LIB_SRC_FILES})
 target_link_libraries(svgfill ${Boost_LIBRARIES} ${BCRYPT_LIBRARIES} LibXml2::LibXml2 CGAL::CGAL_INTERFACE)
+set_target_properties(svgfill PROPERTIES
+    PUBLIC_HEADER "${LIB_H_FILES}"
+)
 
 add_executable(svgfill_exe src/main.cpp)
 target_link_libraries(svgfill_exe svgfill)
@@ -74,5 +67,5 @@ endif()
 
 install(TARGETS svgfill_exe svgfill
     EXPORT ${IFCOPENSHELL_EXPORT_TARGETS}
+    PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/svgfill"
 )
-install(FILES ${LIB_H_FILES} DESTINATION ${INCLUDEDIR})