Temporary find portaudio package diagnostics

CMake/Modules/Findportaudio.cmake

@@ -25,6 +25,59 @@ function(dump_cmake_variables)
   endforeach()
 endfunction()
 
+# Get all propreties that cmake supports
+execute_process(COMMAND cmake --help-property-list OUTPUT_VARIABLE CMAKE_PROPERTY_LIST)
+
+# Convert command output into a CMake list
+STRING(REGEX REPLACE ";" "\\\\;" CMAKE_PROPERTY_LIST "${CMAKE_PROPERTY_LIST}")
+STRING(REGEX REPLACE "\n" ";" CMAKE_PROPERTY_LIST "${CMAKE_PROPERTY_LIST}")
+# Fix https://stackoverflow.com/questions/32197663/how-can-i-remove-the-the-location-property-may-not-be-read-from-target-error-i
+#list(FILTER CMAKE_PROPERTY_LIST EXCLUDE REGEX "^LOCATION$|^LOCATION_|_LOCATION$")
+# For some reason, "TYPE" shows up twice - others might too?
+list(REMOVE_DUPLICATES CMAKE_PROPERTY_LIST)
+
+# build whitelist by filtering down from CMAKE_PROPERTY_LIST in case cmake is
+# a different version, and one of our hardcoded whitelisted properties
+# doesn't exist!
+unset(CMAKE_WHITELISTED_PROPERTY_LIST)
+foreach(prop ${CMAKE_PROPERTY_LIST})
+  if(prop MATCHES "^(INTERFACE|[_a-z]|IMPORTED_LIBNAME_|MAP_IMPORTED_CONFIG_)|^(COMPATIBLE_INTERFACE_(BOOL|NUMBER_MAX|NUMBER_MIN|STRING)|EXPORT_NAME|IMPORTED(_GLOBAL|_CONFIGURATIONS|_LIBNAME)?|NAME|TYPE|NO_SYSTEM_FROM_IMPORTED)$")
+    list(APPEND CMAKE_WHITELISTED_PROPERTY_LIST ${prop})
+  endif()
+endforeach(prop)
+
+function(print_properties)
+  message ("CMAKE_PROPERTY_LIST = ${CMAKE_PROPERTY_LIST}")
+endfunction(print_properties)
+
+function(print_whitelisted_properties)
+  message ("CMAKE_WHITELISTED_PROPERTY_LIST = ${CMAKE_WHITELISTED_PROPERTY_LIST}")
+endfunction(print_whitelisted_properties)
+
+function(print_target_properties tgt)
+  if(NOT TARGET ${tgt})
+    message("There is no target named '${tgt}'")
+    return()
+  endif()
+  
+  get_target_property(target_type ${tgt} TYPE)
+  if(target_type STREQUAL "INTERFACE_LIBRARY")
+    set(PROP_LIST ${CMAKE_WHITELISTED_PROPERTY_LIST})
+  else()
+    set(PROP_LIST ${CMAKE_PROPERTY_LIST})
+  endif()
+  
+  foreach (prop ${PROP_LIST})
+    string(REPLACE "<CONFIG>" "${CMAKE_BUILD_TYPE}" prop ${prop})
+    # message ("Checking ${prop}")
+    get_property(propval TARGET ${tgt} PROPERTY ${prop} SET)
+    if (propval)
+      get_target_property(propval ${tgt} ${prop})
+      message ("${tgt} ${prop} = ${propval}")
+    endif()
+  endforeach(prop)
+endfunction(print_target_properties)
+
 include (LibFindMacros)
 
 libfind_pkg_detect (portaudio portaudio-2.0
@@ -46,6 +99,8 @@ if (portaudio_FOUND AND NOT TARGET portaudio::portaudio)
     )
 endif ()
 
+print_target_properties (portaudio::portaudio)
+
 mark_as_advanced (
   portaudio_INCLUDE_DIR
   portaudio_LIBRARY