I already tried adding -pthread and -lpthread at different positions on
the command line and it didn't work.
On 09/30/2014 08:08 PM, Eric Voskuil wrote:
> -lpthread is not declared as a dependency in the libbitcoin/develop package config
>
> In updating and versioning dependencies (gmp, ssl, curl) I found that the libbitcoin build didn't require pthread.
>
> This may have been because all of the query examples have been disabled in the develop branch due to the blockchain work.
>
> So either callers that use it need to reference it or it needs to be added to the pc.
>
> e
>
> -----Original Message-----
> From: Libbitcoin [mailto:libbitcoin-bounces@lists.dyne.org] On Behalf Of Amir Taaki
> Sent: Tuesday, September 30, 2014 11:50 AM
> To: libbitcoin@???
> Subject: [Libbitcoin] linker errors with libbitcoin and pkg-config (linux)
>
> I tried to track down in the git history but it's difficult and time
> consuming. Any ideas why the pkg-config linking with libbitcoin no
> longer works?
>
> $ cat orgwork.cpp
> #include <bitcoin/bitcoin.hpp>
>
> bc::hash_number sum_difficulty()
> {
> bc::hash_number total_work = 0;
> return total_work;
> }
>
> int main()
> {
> bc::hash_number orphan_work = 0;
> orphan_work += bc::block_work(486604799);
> bc::hash_number main_work = sum_difficulty();
> if (orphan_work <= main_work)
> bc::log_debug() << "Fail";
> else
> bc::log_debug() << "Pass";
> return 0;
> }
>
> $ g++ orgwork.cpp $(pkg-config --cflags --libs libbitcoin)
> /home/rescue/usr/lib/libbitcoin.so: undefined reference to `pthread_create'
> /home/rescue/usr/lib/libbitcoin.so: undefined reference to `pthread_detach'
> /home/rescue/usr/lib/libbitcoin.so: undefined reference to `pthread_join'
> collect2: error: ld returned 1 exit status
>
>
>
::
Re: [Libbitcoin] linker errors with…
