Ensure on macOS generated export header gets copied to frameworks

It *should* get copied with PUBLIC_HEADER property of target, but CMake
quirk causes it to be skipped if not part of original sources for the
target, which can’t happen because the target needs to exist first to
make the export header. This only fixes ‘qgis’ frameworks.

[ci skip]

Author: dakcarto

src/analysis/CMakeLists.txt

@@ -205,6 +205,14 @@ ELSE(NOT APPLE)
     PUBLIC_HEADER "${QGIS_ANALYSIS_HDRS}"
     LINK_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}"
   )
+  # generated export header does not get copied with PUBLIC_HEADER files
+  ADD_CUSTOM_COMMAND(TARGET qgis_analysis
+    POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy qgis_analysis.h
+            "${QGIS_OUTPUT_DIRECTORY}/${QGIS_LIB_SUBDIR}/qgis_analysis.framework/Headers"
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    DEPENDS qgis_analysis.h
+  )
 ENDIF(NOT APPLE)
 
 #generate unversioned libs for android

src/core/CMakeLists.txt

@@ -1008,6 +1008,14 @@ ELSE(NOT APPLE)
     PUBLIC_HEADER "${QGIS_CORE_HDRS};${QGIS_CORE_MOC_HDRS}"
     LINK_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}"
   )
+  # generated export header does not get copied with PUBLIC_HEADER files
+  ADD_CUSTOM_COMMAND(TARGET qgis_core
+    POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy qgis_core.h
+            "${QGIS_OUTPUT_DIRECTORY}/${QGIS_LIB_SUBDIR}/qgis_core.framework/Headers"
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    DEPENDS qgis_core.h
+  )
 ENDIF(NOT APPLE)
 
 #generate unversioned libs for android

src/gui/CMakeLists.txt

@@ -806,6 +806,14 @@ ELSE(NOT APPLE)
     PUBLIC_HEADER "${QGIS_GUI_HDRS};${QGIS_GUI_MOC_HDRS}"
     LINK_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}"
   )
+  # generated export header does not get copied with PUBLIC_HEADER files
+  ADD_CUSTOM_COMMAND(TARGET qgis_gui
+    POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy qgis_gui.h
+            "${QGIS_OUTPUT_DIRECTORY}/${QGIS_LIB_SUBDIR}/qgis_gui.framework/Headers"
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    DEPENDS qgis_gui.h
+  )
 ENDIF(NOT APPLE)
 
 #generate unversioned libs for android