clang++(版本 3.3)缺少标头

clang++(版本 3.3)缺少标头

这看起来很奇怪。以一个简单的 C++ 程序为例

#include <cmath>
#include <iostream>

int main(void) {

    std::cout << "Square root of 9 is " << sqrt(9) << std::endl;

}

使用 (4.8) 可以顺利通过,但使用(3.3) 则 g++无法编译。clang++

edd@don:/tmp$ g++ -o cmath cmath.cpp 
edd@don:/tmp$ ./cmath 
Square root of 9 is 3
edd@don:/tmp$ clang++ -o cmath cmath.cpp 
In file included from cmath.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/../../../../include/c++/4.8/cmath:41:10: \
       fatal error: 
      'bits/c++config.h' file not found
#include <bits/c++config.h>
         ^
1 error generated.
edd@don:/tmp$ 

我怀疑我忽略了一些显而易见的事情。

我确实有相关的-dev包:

edd@don:/tmp$ COLUMNS=72 dpkg -l | grep "clang\|llvm"
ii  clang-3.3      1:3.3-5ubunt i386         C, C++ and Objective-C compiler (
ii  libclang-commo 1:3.3-5ubunt i386         clang library - Common developmen
ii  libclang-commo 1:3.2repack- i386         clang library - Common developmen
ii  libclang1      1:3.2repack- i386         clang library
ii  libclang1-3.3  1:3.3-5ubunt i386         clang library
ii  libllvm3.1:i38 3.1-2ubuntu2 i386         Low-Level Virtual Machine (LLVM),
ii  libllvm3.2:i38 1:3.2repack- i386         Low-Level Virtual Machine (LLVM),
ii  libllvm3.3:i38 1:3.3-5ubunt i386         Low-Level Virtual Machine (LLVM),
ii  llvm-3.3       1:3.3-5ubunt i386         Low-Level Virtual Machine (LLVM)
ii  llvm-3.3-dev   1:3.3-5ubunt i386         Low-Level Virtual Machine (LLVM),
ii  llvm-3.3-runti 1:3.3-5ubunt i386         Low-Level Virtual Machine (LLVM),
edd@don:/tmp$ 

编辑:我没有检查 Bug 跟踪系统,这是事实上在 Launchpad 上

编辑2: 在Ubuntu 16.10中,它终于起作用了:

edd@max:~/src/progs/C++(master)$ clang++ -o cmath cmath.cpp 
edd@max:~/src/progs/C++(master)$ ./cmath 
Square root of 9 is 3
edd@max:~/src/progs/C++(master)$ 

使用clang++版本3.8.1。

答案1

它(最终)在 Ubuntu 16.10 中运行:

edd@max:~/src/progs/C++(master)$ cat cmath.cpp 

#include <cmath>
#include <iostream>

int main(void) {

    std::cout << "Square root of 9 is " << sqrt(9) << std::endl;

}
edd@max:~/src/progs/C++(master)$ clang++ -o cmath cmath.cpp 
edd@max:~/src/progs/C++(master)$ ./cmath 
Square root of 9 is 3
edd@max:~/src/progs/C++(master)$ 

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