Fix issue with builddir when calling configure with absolute path
Fix issue with builddir when calling configure with absolute path

Pan7/libffi,s1341/libffi,joshtriplett/libffi,Pan7/libffi,s1341/libffi,biosbits/libffi,plicease/libffi,joshtriplett/libffi,Distrotech/libffi,joshtriplett/libffi,joshtriplett/libffi,biosbits/libffi,bgarrels/libffi,s1341/libffi,plicease/libffi,rth7680/libffi,plicease/libffi,Distrotech/libffi,Pan7/libffi,Distrotech/libffi,nmav/libffi,Pan7/libffi,biosbits/libffi,s1341/libffi,rth7680/libffi,rth7680/libffi,bgarrels/libffi,rth7680/libffi,bgarrels/libffi,biosbits/libffi,Distrotech/libffi,nmav/libffi,bgarrels/libffi,nmav/libffi,nmav/libffi,plicease/libffi