[i134b] rm one more header from installation ()

Merging branch 'i134b'  into 'main'.

See merge request !738

cmake/BornAgain/PythonAPI.cmake

@@ -42,8 +42,11 @@ install(DIRECTORY ${CMAKE_SOURCE_DIR}/Examples/
     DESTINATION ${destination_examples} COMPONENT Examples FILES_MATCHING PATTERN *.gz)
 install(DIRECTORY ${CMAKE_SOURCE_DIR}/Examples/
     DESTINATION ${destination_examples} COMPONENT Examples FILES_MATCHING PATTERN *.png)
-install(FILES ${AUTO_DIR}/swig_runtime.h
-    DESTINATION ${destination_include}/Wrap COMPONENT Headers)
+
+if(BA_CPP_API)
+    install(FILES ${AUTO_DIR}/swig_runtime.h
+        DESTINATION ${destination_include}/Wrap COMPONENT Headers)
+endif()
 
 # Install bornagain/__init__.py and utilites
 install(DIRECTORY ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/bornagain/