我最近升级到了Yosemite系统,但是在使用通过homebrew获取的gcc-4.9编译使用加速框架的C++程序时遇到了问题。我想知道是否有人有解决方案?在以前的OSX版本中没有出现这个问题。
以以下代码为例进行编译。
#include<iostream>
#include<Accelerate/Accelerate.h>
using namespace std;
{
return 0;
}
使用clang编译时一切正常(Apple LLVM版本6.0(clang-600.0.54)):
clang++ -flax-vector-conversions -o main.out main.cpp -framework Accelerate
但是当使用g++-4.9(g++-4.9(Homebrew gcc49 4.9.1)4.9.1)进行编译时:
g++-4.9 -flax-vector-conversions -o main.out main.cpp -framework Accelerate
我收到了以下编译错误:
> g++-4.9 -flax-vector-conversions -o main.out main.cpp -framework Accelerate
In file included from /usr/include/os/object.h:27:0,
from /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/Headers/LinearAlgebra/base.h:6,
from /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/Headers/LinearAlgebra/LinearAlgebra.h:10,
from /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/Headers/vecLib.h:65,
from /System/Library/Frameworks/Accelerate.framework/Headers/Accelerate.h:20,
from main.cpp:2:
/usr/include/os/base.h:113:20: error: missing binary operator before token "("
#if __has_extension(attribute_overloadable)
^
/usr/include/os/base.h:119:54: error: missing binary operator before token "("
#if __has_feature(objc_fixed_enum) || __has_extension(cxx_strong_enums)
^
In file included from /usr/include/dispatch/dispatch.h:51:0,
from /System/Library/Frameworks/IOKit.framework/Headers/IOKitLib.h:56,
from /System/Library/Frameworks/CoreGraphics.framework/Headers/CGDisplayConfiguration.h:8,
from /System/Library/Frameworks/CoreGraphics.framework/Headers/CoreGraphics.h:41,
from /System/Library/Frameworks/Accelerate.framework/Frameworks/vImage.framework/Headers/vImage_Utilities.h:14,
from /System/Library/Frameworks/Accelerate.framework/Frameworks/vImage.framework/Headers/vImage.h:200,
from /System/Library/Frameworks/Accelerate.framework/Headers/Accelerate.h:24,
from main.cpp:2:
/usr/include/dispatch/object.h:143:15: error: expected unqualified-id before '^' token
typedef void (^dispatch_block_t)(void);
^
/usr/include/dispatch/object.h:143:15: error: expected ')' before '^' token
/usr/include/dispatch/object.h:362:3: error: 'dispatch_block_t' has not been declared
dispatch_block_t notification_block);
^