> I'm trying to compile the Quickstart example
> <http://libbitcoin.dyne.org/doc/quickstart.html#quickstart>, but I get
> an error:
> [tb@new-host programs]$ g++ -o test test.cpp -std=c++11 $(pkg-config
> --cflags --libs libbitcoin)                                            

> test.cpp: In function 'int main()':                                    

> test.cpp:15:50: error: invalid initialization of reference of type
> 'const libbitcoin::block_header_type&' from expression of type
> 'libbitcoin::block_type'              
> In file included from /usr/local/include/bitcoin/bitcoin.hpp:170:0,    

>                  from test.cpp:9:                                      

> /usr/local/include/bitcoin/block.hpp:47:13: error: in passing argument 1
> of 'libbitcoin::hash_digest libbitcoin::hash_block_header(const
> libbitcoin::block_header_type&)'            
> It seems that the function hash_block_headerdoesn't work with the output
> of genesis_block() because of data types (block_type !=
>  block_header_type).