/usr/include/seqan/basic/ is in seqan-dev 1.3-1ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/seqan/basic/basic_aggregates.h
/usr/include/seqan/basic/basic_allocator_chunkpool.h
/usr/include/seqan/basic/basic_allocator_interface.h
/usr/include/seqan/basic/basic_allocator_multipool.h
/usr/include/seqan/basic/basic_allocator_simple.h
/usr/include/seqan/basic/basic_allocator_singlepool.h
/usr/include/seqan/basic/basic_allocator_to_std.h
/usr/include/seqan/basic/basic_alphabet_interface.h
/usr/include/seqan/basic/basic_alphabet_interface2.h
/usr/include/seqan/basic/basic_alphabet_simple.h
/usr/include/seqan/basic/basic_alphabet_simple_tabs.h
/usr/include/seqan/basic/basic_alphabet_trait_basic.h
/usr/include/seqan/basic/basic_compare.h
/usr/include/seqan/basic/basic_converter.h
/usr/include/seqan/basic/basic_counted_ptr.h
/usr/include/seqan/basic/basic_debug.h
/usr/include/seqan/basic/basic_definition.h
/usr/include/seqan/basic/basic_forwards.h
/usr/include/seqan/basic/basic_generated_forwards.h
/usr/include/seqan/basic/basic_holder.h
/usr/include/seqan/basic/basic_holder_dynamic.h
/usr/include/seqan/basic/basic_host.h
/usr/include/seqan/basic/basic_iterator.h
/usr/include/seqan/basic/basic_iterator_adapt_std.h
/usr/include/seqan/basic/basic_iterator_adaptor.h
/usr/include/seqan/basic/basic_iterator_base.h
/usr/include/seqan/basic/basic_iterator_position.h
/usr/include/seqan/basic/basic_iterator_simple.h
/usr/include/seqan/basic/basic_logvalue.h
/usr/include/seqan/basic/basic_metaprogramming.h
/usr/include/seqan/basic/basic_operator.h
/usr/include/seqan/basic/basic_parallelism.h
/usr/include/seqan/basic/basic_pointer.h
/usr/include/seqan/basic/basic_profchar.h
/usr/include/seqan/basic/basic_profile.h
/usr/include/seqan/basic/basic_proxy.h
/usr/include/seqan/basic/basic_sse2.h
/usr/include/seqan/basic/basic_tag.h
/usr/include/seqan/basic/basic_testing.h
/usr/include/seqan/basic/basic_transport.h
/usr/include/seqan/basic/basic_type.h
/usr/include/seqan/basic/basic_volatile_ptr.h