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<br><br>Running the following: ./configure --with-boost=/scratch/usr&nbsp; <br><br>I get the error messages:<br><br>graph-tool will be installed at: /scratch/opt/pythonbrew/pythons/Python-2.7.2/lib/python2.7/site-packages<br>===========================<br>Using python version: 2.7.2<br>===========================<br>checking for boostlib &gt;= 1.38.0... yes<br>checking whether the Boost::Python library is available... yes<br>checking for exit in -lboost_python... no<br>checking for exit in -lboost_python-py2.7... no<br>checking for exit in -lboost_python-2.7... no<br>checking for exit in -lboost_python... (cached) no<br>checking for exit in -lboost_python-py2.7... (cached) no<br>checking for exit in -lboost_python-2.7... (cached) no<br>checking for exit in -lboost_python-mt... no<br>checking for exit in -lboost_python-mt-py2.7... no<br>checking for exit in -lboost_python-mt-2.7... no<br>configure: error: No usable boost::python found<br><br><br>Is there something wrong with my boost installation? <br><br>Thanks<br>