makefile - 在 Makefile 中使用 Clang++ 代替 G++

Question

我有一个 makefile 可以用 g++ 4.6 很好地构建我的项目。

#specify the compiler  
GXX=g++ -std=c++0x

# Specifiy the target  
all: linkedList

# Specify the object files that the target depends on  
# Also specify the object files needed to create the executable  
linkedList: StudentRecord.o Node.o LinkedList.o  ListMain.o
    $(GXX) StudentRecord.o Node.o LinkedList.o  ListMain.o -o linkedList

# Specify how the object files should be created from source files  
LinkedList.o: LinkedList.cpp
    $(GXX)  -c  LinkedList.cpp

ListMain.o: ListMain.cpp
    $(GXX)  -c  ListMain.cpp

StudentRecord.o: StudentRecord.cpp
    $(GXX)  -c  StudentRecord.cpp

Node.o: Node.cpp
    $(GXX)  -c  Node.cpp

当我将第一行更改为 GXX = clang++ -std=c++0x clang 抛出了一些关于 iostream 没有找到正确的参数的相当密集的错误，或者之后还有许多其他错误(但这是“根”错误)。

In file included from /usr/include/c++/4.6/iostream:39:
In file included from /usr/include/c++/4.6/ostream:39:
In file included from /usr/include/c++/4.6/ios:40:
In file included from /usr/include/c++/4.6/bits/char_traits.h:40:
In file included from /usr/include/c++/4.6/bits/stl_algobase.h:65:
In file included from /usr/include/c++/4.6/bits/stl_pair.h:60:
In file included from /usr/include/c++/4.6/bits/move.h:53:
/usr/include/c++/4.6/type_traits:630:59: error: '_Tp' does not refer to a value
    : public integral_constant<bool, __is_standard_layout(_Tp)>

这是我的makefile的问题，还是这个简单的编译真的有区别？

使用叮当 2.9。

注: clang 提示的线路是 #include <iostream>

Answer 1

这是一个老问题，但万一其他人在这里偶然发现，要检查的一件事是您是否正在使用 clang std lib。为此，您需要标志:

-stdlib=libc++