Casablanca: linux上的装配错误gcc 4.8.1

Question

我正在尝试构建casablanca，就像他们在their page上说的那样。因为我已经使用gcc-4.8.1安装了CXX=gcc-4.8，所以我删除了它，只做了以下操作：

cmake .. -DCMAKE_BUILD_TYPE=Release

它创建文件，当我执行make时，我得到以下错误：

Scanning dependencies of target casablanca
[  1%] Building CXX object src/CMakeFiles/casablanca.dir/streams/linux/fileio_linux.cpp.o
/tmp/ccoWLl81.s: Assembler messages:
/tmp/ccoWLl81.s:97: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:188: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:298: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:310: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:322: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:334: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:371: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:494: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:508: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:522: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:536: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:550: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:2028: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:2057: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:2086: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:3975: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:6186: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:10355: Error: expecting string instruction after `rep'
make[2]: *** [src/CMakeFiles/casablanca.dir/streams/linux/fileio_linux.cpp.o] Error 1
make[1]: *** [src/CMakeFiles/casablanca.dir/all] Error 2
make: *** [all] Error 2

有人遇到过这个问题吗？是因为gcc4.8.1吗？怎么修呢？

Answer 1

问题是gcc 4.8正在生成"rep；ret“指令，以避免AMD芯片的性能损失。旧的汇编程序会检测到这是一个错误。

详情如下：

https://gcc.gnu.org/ml/gcc-help/2011-03/msg00286.html

修复方法是更新您的binutils，以便您获得一个接受此指令的较新版本的汇编程序。

Answer 2

sudo yum update binutils

->软件包binutils.x86_64 0:2.22.52.0.1-10.36将更新will 1

->包binutils.x86_64 0:2.23.52.0.1-30.64.amzn 1将是一个更新