Added check whether Compadre toolkit was parent and based on this,

create 'doc' target.

Author: kuberry

CMakeLists.txt

@@ -10,6 +10,7 @@ PROJECT(Compadre VERSION 1.0.2 LANGUAGES CXX)
 
 # cmake helper functions
 include(${CMAKE_CURRENT_LIST_DIR}/cmake/bob.cmake)
+get_directory_property(Compadre_HAS_PARENT PARENT_DIRECTORY)
 
 bob_begin_package()
 
@@ -487,14 +488,16 @@ endif()
 
 find_package(Doxygen QUIET)
 if (DOXYGEN_FOUND)
-  configure_file("${CMAKE_CURRENT_SOURCE_DIR}/doc/Doxyfile.in" "${CMAKE_CURRENT_SOURCE_DIR}/doc/Doxyfile" @ONLY)
-  add_custom_target(doc
-      COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/doc/Doxyfile
-      WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doc 
-      VERBATIM 
-  )
-  set_target_properties(doc PROPERTIES EXCLUDE_FROM_ALL TRUE)
-  # still must be called manually with "make doc"
+  if (NOT(Compadre_HAS_PARENT))
+    configure_file("${CMAKE_CURRENT_SOURCE_DIR}/doc/Doxyfile.in" "${CMAKE_CURRENT_SOURCE_DIR}/doc/Doxyfile" @ONLY)
+    add_custom_target(doc
+        COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/doc/Doxyfile
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doc 
+        VERBATIM 
+    )
+    set_target_properties(doc PROPERTIES EXCLUDE_FROM_ALL TRUE)
+    # still must be called manually with "make doc"
+  endif()
 endif()