This package adds itself CFLAGS="-g" and it should drop it /bin/sh ../../../../../libtool --tag=CC --mode=compile x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../../../../../include -I../../../../../tools/topo/hwloc/hwloc/include/private/autogen -I../../../../../tools/topo/hwloc/hwloc/include/hwloc/autogen -I/var/tmp/portage/sys-cluster/mpich2-1.5/work/mpich2-1.5/src/pm/hydra/tools/topo/hwloc/hwloc/include -I/var/tmp/portage/sys-cluster/mpich2-1.5/work/mpich2-1.5/src/pm/hydra/tools/topo/hwloc/hwloc/include -DHWLOC_INSIDE_LIBHWLOC -I/var/tmp/portage/sys-cluster/mpich2-1.5/work/mpich2-1.5/src/pm/hydra/tools/topo/hwloc/hwloc/include -I/var/tmp/portage/sys-cluster/mpich2-1.5/work/mpich2-1.5/src/pm/hydra/tools/topo/hwloc/hwloc/include -I/var/tmp/portage/sys-cluster/mpich2-1.5/work/mpich2-1.5/src/mpl/include -I/var/tmp/portage/sys-cluster/mpich2-1.5/work/mpich2-1.5/src/mpl/include -I/var/tmp/portage/sys-cluster/mpich2-1.5/work/mpich2-1.5/src/openpa/src -I/var/tmp/portage/sys-cluster/mpich2-1.5/work/mpich2-1.5/src/openpa/src -fvisibility=hidden -I/usr/include/libxml2 -fvisibility=hidden -I/usr/include/libxml2 -march=native -O2 -g0 -pipe -g -c -o topology.lo topology.c