r a certain architecture or subset of architectures. Values can be concatenated between commas, and those valid are:
				
				<table>
					<tr>
						<td width="100" align="right"><b>all</b></td>
						<td width="10"></td>
						<td>all architectures</td>
					</tr>
					<tr>
						<td width="100" align="right"><b>32</b></td>
						<td width="10"></td>
						<td>x86 32 bits</td>
					</tr>
					<tr>
						<td width="100" align="right"><b>64</b></td>
						<td width="10"></td>
						<td>x86 64 bits</td>
				