On Tue, Jul 07, 2009 at 09:02:01AM +0200, Oliver Seitz wrote: > {standard input}: Assembler messages: > {standard input}:18: Error: `ff_h264_lps_range(%eax,%esi,2)' is not a > valid 64 bit base/index expression Your compiler is a 64 bit compiler but your architecture is recognized as x86 instead of x86_64 or amd64.