Hi, I'm trying to install graph_tool on Centos 5.8 in a custom Python 2.7.2 environment. I have boost installed under /scratch/usr Running the following: ./configure --with-boost=/scratch/usr I get the error messages: graph-tool will be installed at: /scratch/opt/pythonbrew/pythons/Python-2.7.2/lib/python2.7/site-packages =========================== Using python version: 2.7.2 =========================== checking for boostlib >= 1.38.0... yes checking whether the Boost::Python library is available... yes checking for exit in -lboost_python... no checking for exit in -lboost_python-py2.7... no checking for exit in -lboost_python-2.7... no checking for exit in -lboost_python... (cached) no checking for exit in -lboost_python-py2.7... (cached) no checking for exit in -lboost_python-2.7... (cached) no checking for exit in -lboost_python-mt... no checking for exit in -lboost_python-mt-py2.7... no checking for exit in -lboost_python-mt-2.7... no configure: error: No usable boost::python found Is there something wrong with my boost installation? Thanks