【发布时间】:2018-02-21 21:35:47
【问题描述】:
当我尝试在 Mac 中编译这个非常简单的 C++ 程序时出现错误(HighSierra:版本 10.13.3)。这台 Mac 使用的 gcc 版本是 5.3.0。
这是 C++ 程序:
#include<iostream>
#include<cmath>
#include<fstream>
using namespace std;
int main()
{
cout<<sin(1);
}
根据先前问题的答案,我使用 xcode-select --install 安装了命令行工具
上述命令行安装后,当我尝试使用编译这个程序时
gcc filename.cpp -o filename.out
我收到以下错误:
/var/folders/mp/z7xpkw3538z71904cdqhztv00000gn/T//ccGJEHr7.s:24:11: warning: section "__textcoal_nt" is deprecated
.section __TEXT,__textcoal_nt,coalesced,pure_instructions
^ ~~~~~~~~~~~~~
/var/folders/mp/z7xpkw3538z71904cdqhztv00000gn/T//ccGJEHr7.s:24:11: note: change section name to "__text"
.section __TEXT,__textcoal_nt,coalesced,pure_instructions
^ ~~~~~~~~~~~~~
Undefined symbols for architecture x86_64:
"std::basic_ostream<char, std::char_traits<char> >::operator<<(double)", referenced from:
_main in ccpjcybF.o
"std::ios_base::Init::Init()", referenced from:
__static_initialization_and_destruction_0(int, int) in ccpjcybF.o
"std::ios_base::Init::~Init()", referenced from:
__static_initialization_and_destruction_0(int, int) in ccpjcybF.o
"std::cout", referenced from:
_main in ccpjcybF.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
我该如何解决这个问题?
更新:
按照答案,现在我使用g++,即
g++ filename.cpp -o filename.out
现在,我收到以下错误:
/var/folders/mp/z7xpkw3538z71904cdqhztv00000gn/T//ccJjEuJy.s:24:11: warning: section "__textcoal_nt" is deprecated
.section __TEXT,__textcoal_nt,coalesced,pure_instructions
^ ~~~~~~~~~~~~~
/var/folders/mp/z7xpkw3538z71904cdqhztv00000gn/T//ccJjEuJy.s:24:11: note: change section name to "__text"
.section __TEXT,__textcoal_nt,coalesced,pure_instructions
^ ~~~~~~~~~~~~~
【问题讨论】:
标签: c++ macos gcc compilation g++