Fix '-pie' build with clang
Fix '-pie' build with clang

Commit 97e70a593589e8f0432a748b4b93c3cdc18b9e5a added the option -pie to
CFLAGS and LDFLAGS, however '-pie' is just a linker option.  That
wouldn't be a problem.  However, clang is checking for that and outputs
an error or unused argument:

error: argument unused during compilation: '-pie'

Signed-off-by: Martin Kletzander <e82f23e74d43760279ebcc505dac4ae70d5627d0@redhat.com>

taget/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,taget/libvirt,rlaager/libvirt,eskultety/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,nertpinx/libvirt,nertpinx/libvirt,zippy2/libvirt,jardasgit/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,datto/libvirt,fabianfreyer/libvirt,eskultety/libvirt,fabianfreyer/libvirt,rlaager/libvirt,VenkatDatta/libvirt,taget/libvirt,rlaager/libvirt,datto/libvirt,taget/libvirt,jfehlig/libvirt,olafhering/libvirt,libvirt/libvirt,nertpinx/libvirt,datto/libvirt,taget/libvirt,jardasgit/libvirt,eskultety/libvirt,libvirt/libvirt,datto/libvirt,jardasgit/libvirt,jfehlig/libvirt,zippy2/libvirt,libvirt/libvirt,zippy2/libvirt,jfehlig/libvirt,crobinso/libvirt,zippy2/libvirt,crobinso/libvirt,eskultety/libvirt,rlaager/libvirt,rlaager/libvirt,crobinso/libvirt,nertpinx/libvirt,jardasgit/libvirt,olafhering/libvirt,libvirt/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,datto/libvirt,eskultety/libvirt,nertpinx/libvirt,olafhering/libvirt,crobinso/libvirt,jfehlig/libvirt,olafhering/libvirt