minor compilation issue: do only try to install new signal handlers for those signals that do exit on the very platform we are on.
minor compilation issue:
do only try to install new signal handlers for those signals
that do exit on the very platform we are on.

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb