error: CPU you selected does not support x86-64 instruction set

[GoogleCodeExporter]

What steps will reproduce the problem?
when run 'scons', i get the errors:

scons: done reading SConscript files.
scons: Building targets ...
g++ -o build/base/allocator_test.o -c -march=i486 -g -static -Ibuild -I. 
-I/Users/fandywang/project/third_party/boost/include/boost-1_39 
-I/Users/fandywang/project/third_party/gflags/include 
-I/Users/fandywang/project/third_party/glog/include 
-I/Users/fandywang/project/third_party/protobuf/include 
-I/Users/fandywang/project/third_party/protobuf/include/google 
-I/Users/fandywang/project/third_party/gtest/include base/allocator_test.cpp
base/allocator_test.cpp:1: error: CPU you selected does not support x86-64 
instruction set
base/allocator_test.cpp:1: error: CPU you selected does not support x86-64 
instruction set
scons: *** [build/base/allocator_test.o] Error 1
scons: building terminated because of errors.

What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?

mac os x 10.8

Please provide any additional information below.

Original issue reported on code.google.com by ofandyw...@gmail.com on 23 Feb 2013 at 9:30