From d0b5fda4a292018ad6c2e492e6ac385fc6795322 Mon Sep 17 00:00:00 2001
From: maz-1 <maz-1@users.noreply.github.com>
Date: Sun, 13 Mar 2022 09:56:58 +0800
Subject: [PATCH 1/2] export package to cmake build system

---
 sources/CMakeLists.txt         | 42 ++++++++++++++++++++++++++++++++--
 sources/citygmlConfig.cmake.in |  9 ++++++++
 2 files changed, 49 insertions(+), 2 deletions(-)
 create mode 100644 sources/citygmlConfig.cmake.in

diff --git a/sources/CMakeLists.txt b/sources/CMakeLists.txt
index e97fa531..f9a1c9ad 100644
--- a/sources/CMakeLists.txt
+++ b/sources/CMakeLists.txt
@@ -205,7 +205,10 @@ generate_export_header(citygml
                        EXPORT_MACRO_NAME LIBCITYGML_EXPORT
                        EXPORT_FILE_NAME ${EXPORT_HEADER_FILE_NAME})
 
-TARGET_LINK_LIBRARIES( ${target} ${XERCESC_LIBRARIES} ${OPENGL_LIBRARIES} ${GDAL_LIBRARY} )
+TARGET_LINK_LIBRARIES( ${target} PUBLIC ${XERCESC_LIBRARIES} ${OPENGL_LIBRARIES} )
+if(GDAL_LIBRARY)
+    TARGET_LINK_LIBRARIES( ${target} PUBLIC ${GDAL_LIBRARY} )
+endif(GDAL_LIBRARY)
 
 set_target_properties( ${target} PROPERTIES
     VERSION ${META_VERSION}
@@ -222,19 +225,49 @@ if(NOT DEFINED INCLUDE_INSTALL_DIR)
     set(INCLUDE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include/citygml")
 endif(NOT DEFINED INCLUDE_INSTALL_DIR)
 
+if(WIN32)
+  set(CONFIG_INSTALL_DIR "cmake")
+else()
+  set(CONFIG_INSTALL_DIR "${LIB_INSTALL_DIR}/cmake/citygml")
+endif()
+
 INSTALL(
     TARGETS ${target}
+    EXPORT citygmlConfigInternal
     RUNTIME DESTINATION ${BIN_INSTALL_DIR}
     LIBRARY DESTINATION ${LIB_INSTALL_DIR}
     ARCHIVE DESTINATION ${LIB_INSTALL_DIR}
+    COMPONENT "runtime"
+)
+INSTALL(
+    EXPORT citygmlConfigInternal
+    DESTINATION "${CONFIG_INSTALL_DIR}"
+    NAMESPACE "citygml::"
+    COMPONENT "development"
 )
 
+include(CMakePackageConfigHelpers)
+configure_package_config_file(
+  "${CMAKE_CURRENT_SOURCE_DIR}/citygmlConfig.cmake.in"
+  "${CMAKE_CURRENT_BINARY_DIR}/citygmlConfig.cmake"
+  INSTALL_DESTINATION "${CONFIG_INSTALL_DIR}")
+write_basic_package_version_file(
+  ${CMAKE_CURRENT_BINARY_DIR}/citygmlConfigVersion.cmake
+  VERSION "${META_VERSION}"
+  COMPATIBILITY SameMajorVersion)
+INSTALL(
+    FILES ${CMAKE_CURRENT_BINARY_DIR}/citygmlConfig.cmake
+          ${CMAKE_CURRENT_BINARY_DIR}/citygmlConfigVersion.cmake
+    DESTINATION "${CONFIG_INSTALL_DIR}"
+    COMPONENT "development"
+)
 
 # FIXME: Do not run for OS X framework
 INSTALL(
     FILES
       ${PUBLIC_HEADER}
     DESTINATION  ${INCLUDE_INSTALL_DIR}
+    COMPONENT "development"
 )
 
 INSTALL(
@@ -242,6 +275,7 @@ INSTALL(
       ${EXPORT_HEADER_FILE_NAME}
     DESTINATION
       ${INCLUDE_INSTALL_DIR}
+    COMPONENT "development"
 )
 
 if (LIBCITYGML_DEBUG_POSTFIX AND CMAKE_BUILD_TYPE STREQUAL "Debug")
@@ -252,5 +286,9 @@ endif()
 
 configure_file(citygml.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/citygml.pc)
 
-install(FILES ${CMAKE_CURRENT_BINARY_DIR}/citygml.pc DESTINATION ${LIB_INSTALL_DIR}/pkgconfig)
+INSTALL(
+    FILES ${CMAKE_CURRENT_BINARY_DIR}/citygml.pc 
+    DESTINATION ${LIB_INSTALL_DIR}/pkgconfig
+    COMPONENT "development"
+)
 
diff --git a/sources/citygmlConfig.cmake.in b/sources/citygmlConfig.cmake.in
new file mode 100644
index 00000000..8bd31331
--- /dev/null
+++ b/sources/citygmlConfig.cmake.in
@@ -0,0 +1,9 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/citygmlConfigInternal.cmake")
+
+set(CITYGML_ROOT_DIR ${PACKAGE_PREFIX_DIR})
+set(CITYGML_LIBRARIES citygml::citygml)
+set(CITYGML_DYNAMIC @LIBCITYGML_DYNAMIC@)
+get_property(CITYGML_INCLUDE_DIRS TARGET citygml::citygml PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
+set(CITYGML_LIBRARY_DIRS "")

From 0d7337f2a4f7c233be830455da60048dcc747150 Mon Sep 17 00:00:00 2001
From: maz-1 <maz-1@users.noreply.github.com>
Date: Sun, 13 Mar 2022 20:48:06 +0800
Subject: [PATCH 2/2] fix pkg-config requires

---
 sources/CMakeLists.txt   | 10 ++++++++--
 sources/citygml.pc.cmake |  2 +-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/sources/CMakeLists.txt b/sources/CMakeLists.txt
index f9a1c9ad..520afe4f 100644
--- a/sources/CMakeLists.txt
+++ b/sources/CMakeLists.txt
@@ -206,9 +206,9 @@ generate_export_header(citygml
                        EXPORT_FILE_NAME ${EXPORT_HEADER_FILE_NAME})
 
 TARGET_LINK_LIBRARIES( ${target} PUBLIC ${XERCESC_LIBRARIES} ${OPENGL_LIBRARIES} )
-if(GDAL_LIBRARY)
+if(LIBCITYGML_USE_GDAL)
     TARGET_LINK_LIBRARIES( ${target} PUBLIC ${GDAL_LIBRARY} )
-endif(GDAL_LIBRARY)
+endif(LIBCITYGML_USE_GDAL)
 
 set_target_properties( ${target} PROPERTIES
     VERSION ${META_VERSION}
@@ -284,6 +284,12 @@ else()
     set(LIBCITYGML_POSTFIX "")
 endif()
 
+set(PKG_CONFIG_REQUIRES "xerces-c glu")
+
+if (LIBCITYGML_USE_GDAL)
+    set(PKG_CONFIG_REQUIRES "${PKG_CONFIG_REQUIRES} gdal")
+endif()
+
 configure_file(citygml.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/citygml.pc)
 
 INSTALL(
diff --git a/sources/citygml.pc.cmake b/sources/citygml.pc.cmake
index bedc052a..0859b276 100644
--- a/sources/citygml.pc.cmake
+++ b/sources/citygml.pc.cmake
@@ -5,7 +5,7 @@ includedir=${INCLUDE_INSTALL_DIR}
 
 Name: citygml
 Description: Read and Write CityGML files
-Requires: libxml-2.0 glu
+Requires: ${PKG_CONFIG_REQUIRES}
 Version: ${META_VERSION}
 Libs: -L${LIB_INSTALL_DIR} -lcitygml${LIBCITYGML_POSTFIX}
 Cflags: -I${INCLUDE_INSTALL_DIR}