Hi Massimiliano, > I came across this [alleged] bug when installing petsc with GPU support:
if I run configure with option –with-cusp-include=… it complains I should also set –with-cusp-lib, but cusp is a pure template library, so there is no static or shared library to link against.
Correct. The sample file in config/examples/arch-cuda-double.py uses --with-cusp-dir for exactly that reason.
As an alternative, it offers to specify –with-cusp-dir=CUSP_DIR , and then it tries to guess the include directory as $CUSP_DIR/include, which is wrong as in current CUSP version the directory containing the headers is $CUSP_DIR/cusp. An easy workaround is to go to $CUSP_DIR and create a symbolic link $CUSP_DIR/include that points to $CUSP_DIR/cusp, but I think the configure script should be corrected [one might not always have permission to create this link.
Thanks for the feedback, I will look into this. We have other libraries in use which use a similar folder organization as CUSP, so I suspect something system-specific. Could you send us configure.log for the case where you configure using –with-cusp-dir=CUSP_DIR?
Thanks and best regards, Karli
