Thanks, getting somewhere now! configure: checking whether boost thread is usable configure: g++ -o conftest -pthread -L/boot/common/lib conftest.cpp -lboost_thread >&5 g++: unrecognized option '-pthread' configure: $? = 0 configure: ./conftest runtime_loader: /boot/system/lib/gcc4/libroot.so: version "LIBROOT_1_ALPHA4" not found (required by libboost_thread.so.1.47.0) I'm running A3 R42211. Ah ha, I think boost was compiled on a newer nightly... I will try that. -----Original Message----- From: Hamish Morrison <hamish@xxxxxxxxxxx> To: haiku-development <haiku-development@xxxxxxxxxxxxx> Sent: Sat, Feb 4, 2012 6:17 pm Subject: [haiku-development] Re: Using libboost_thread.so? On 04/02/2012 21:42, Andrew Hudson wrote: > >Try --with-boost-thread=boost_thread > > This results in: > > Checking for exit in -lboost_thread-boost_thread... no > Configure: error: Could not link against boost_thread-boost_thread --with-boost-thread=boost_thread --with-boost-libdir=/boot/common/lib