Gcc #“错误”；必须在“包括支持/数据类型.h”之前定义“U STDC”U LIMIT“U宏”；

我一直试图在（使用flex、bison和llvm）上遵循教程，但在键入行时

g++-o解析器parser.cpp tokens.cpp main.cpp

我得到以下错误：

In file included from /usr/local/include/llvm/Support/PointerLikeTypeTraits.h:18:0,
                 from /usr/local/include/llvm/ADT/PointerIntPair.h:17,
                 from /usr/local/include/llvm/IR/Use.h:28,
                 from /usr/local/include/llvm/IR/Value.h:17,
                 from node.h:3,
                 from parser.y:2:
/usr/local/include/llvm/Support/DataTypes.h:48:3: erreur: #error "Must #define __STDC_LIMIT_MACROS before #including Support/DataTypes.h"
/usr/local/include/llvm/Support/DataTypes.h:52:3: erreur: #error "Must #define __STDC_CONSTANT_MACROS before " "#including Support/DataTypes.h"
parser.y: In function ‘void yyerror(const char*)’:
parser.y:6:58: erreur: ‘printf’ was not declared in this scope
In file included from /usr/local/include/llvm/Support/PointerLikeTypeTraits.h:18:0,
                 from /usr/local/include/llvm/ADT/PointerIntPair.h:17,
                 from /usr/local/include/llvm/IR/Use.h:28,
                 from /usr/local/include/llvm/IR/Value.h:17,
                 from node.h:3,
                 from tokens.l:3:
/usr/local/include/llvm/Support/DataTypes.h:48:3: erreur: #error "Must #define __STDC_LIMIT_MACROS before #including Support/DataTypes.h"
/usr/local/include/llvm/Support/DataTypes.h:52:3: erreur: #error "Must #define __STDC_CONSTANT_MACROS before " "#including Support/DataTypes.h"
In file included from /usr/local/include/llvm/Support/PointerLikeTypeTraits.h:18:0,
                 from /usr/local/include/llvm/ADT/PointerIntPair.h:17,
                 from /usr/local/include/llvm/IR/Use.h:28,
                 from /usr/local/include/llvm/IR/Value.h:17,
                 from node.h:3,
                 from main.cpp:2:
/usr/local/include/llvm/Support/DataTypes.h:48:3: erreur: #error "Must #define __STDC_LIMIT_MACROS before #including Support/DataTypes.h"
/usr/local/include/llvm/Support/DataTypes.h:52:3: erreur: #error "Must #define __STDC_CONSTANT_MACROS before " "#including Support/DataTypes.h"

我在互联网上看到过很多类似的帖子，大多数答案包括在命令行或使用gcc Makefile定义这些常量

---

我不知道怎么做，有人能帮我吗？

将此附加到命令行：

-D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS

有关

-D

命令行选项的更多信息，请参阅。

根据文档，您应该能够通过添加以下命令行选项来解决此问题：

-D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS

之后，可能会出现一些其他错误：

parser.o:在函数

NInteger:：NInteger（long）”中：
parser.cpp:（.text._ZN8NIntegerC2Ex[_ZN8NIntegerC5Ex]+0x23）：未定义对

vtable for NInteger's的引用 parser.o:在函数

NDouble:：NDouble（double）”中：
parser.cpp:（.text.\u ZN7NDoubleC2Ed[\u ZN7NDoubleC5Ed]+0x24）：未定义对

vtable for NDouble'的引用

尝试在没有

llvm

内容的每个类中实现每个codeGen（即，更改

node.h

）。然后您将能够编译并运行教程

顺便说一下，编译代码时，您可能希望使用

llvm config

命令获取选项，而不是使用

-D

选项：

g++ -c `llvm-config --cppflags`  xxxx.cpp

---

@很遗憾，在添加此命令行选项后，我仍然会遇到错误。有什么线索吗？我在OSX上。@gideon对不起，不。你最好问一下。