On 28 October 2014 10:33, Manpreet Singh wrote: > Hi, > Thanks, now i can build it without error. But, when i run that > make check(testsuite) in command line. > Again giving lots of failure. > e.g > /tmp/cc7EMVR7.s: Assembler messages: > /tmp/cc7EMVR7.s:8: Error: Unrecognized opcode: `pushq' > /tmp/cc7EMVR7.s:10: Error: Unrecognized opcode: `movq' > /tmp/cc7EMVR7.s:13: Error: Unrecognized opcode: `subq' > same failure many thousand times. > How would i get rid off this failure? Your assembler doesn't understand x86_64 instructions. I would guess either you've got a 32-bit x86 assembler or an assembler for a totally different architecture. It would probably help if you said what kind of system you're running on and how you configured GCC, so we don't have to guess what you're trying to do.