如何用llvm和g++编译？

Question

我使用的是fedora-11系统，最近我安装了llvm ( sudo yum -y install llvm llvm-docs llvm-devel )。当我搜索llvm时，我在/usr/bin中得到它们。一些指向二进制文件的链接已断开(llvm-gcc、llvm-g++、llvm-cpp等)。包含文件可以在/usr/lib/llvm的/usr/include/llvm和库中找到。如何使用g++编译它们？我尝试按照指令编译tutorial中给出的万花筒代码，但编译失败。

我明白了：

toy.cpp:5:30: error: llvm/LLVMContext.h: No such file or directory

toy.cpp:352: error: ‘getGlobalContext’ was not declared in this scope

toy.cpp: In member function ‘virtual llvm::Value* NumberExprAST::Codegen()’:

toy.cpp:358: error: ‘getGlobalContext’ was not declared in this scope

toy.cpp: In member function ‘virtual llvm::Value* BinaryExprAST::Codegen()’:

toy.cpp:379: error: ‘getDoubleTy’ is not a member of ‘llvm::Type’

toy.cpp:379: error: ‘getGlobalContext’ was not declared in this scope

toy.cpp: In member function ‘llvm::Function* PrototypeAST::Codegen()’:

toy.cpp:407: error: ‘getDoubleTy’ is not a member of ‘llvm::Type’

toy.cpp:407: error: ‘getGlobalContext’ was not declared in this scope

toy.cpp:408: error: ‘getDoubleTy’ is not a member of ‘llvm::Type’

toy.cpp: In member function ‘llvm::Function* FunctionAST::Codegen()’:

toy.cpp:454: error: ‘getGlobalContext’ was not declared in this scope

toy.cpp: In function ‘int main()’:

toy.cpp:543: error: ‘LLVMContext’ was not declared in this scope

toy.cpp:543: error: ‘Context’ was not declared in this scope

toy.cpp:543: error: ‘getGlobalContext’ was not declared in this scope

我也找不到LLVMContext.h文件。所以我猜这可能是一个版本问题。我该怎么做才能让它工作呢？

一些帮助将是好的！先谢谢你...:)

Answer 1

看起来标头没有安装，或者安装在你不使用的路径中。我的建议是从llvm.org网站或svn下载代码，并使用它来构建万花筒示例。它相当简单，所有代码都在examples目录中。

Answer 2

不使用yum，而是通过this或this链接安装clang/llvm。