我在使用 cmake 编译时收到此消息:
In file included from scanner.lex:6:
C:\Users\uriya\CLionProjects\untitled1\output.hpp:4:10: fatal error: string: No such file or directory
4 | #include <string>
| ^~~~~~~~
compilation terminated.
make.exe[3]: *** [CMakeFiles\untitled1.dir\build.make:88: CMakeFiles/untitled1.dir/lex.yy.c.obj] Error 1
make.exe[3]: *** Waiting for unfinished jobs....
make.exe[2]: *** [CMakeFiles\Makefile2:72: CMakeFiles/untitled1.dir/all] Error 2
make.exe[1]: *** [CMakeFiles\Makefile2:84: CMakeFiles/untitled1.dir/rule] Error 2
make.exe: *** [Makefile:117: untitled1] Error 2
这是导致问题的代码部分:
#ifndef _236360_2_
#define _236360_2_
#include <string>
using namespace std;
namespace output {
extern const string rules[];
void printProductionRule(int ruleno);
void errorLex(int lineno);
void errorSyn(int lineno);
};
#endif
这就是 cmake 的输入:
cmake_minimum_required(VERSION 3.13)
project(untitled1)
set(CMAKE_CXX_STANDARD 11)
add_executable(untitled1 parser.tab.cpp output.cpp lex.yy.c)
奇怪的是,我设法使用 g++ -std=c++11 -o hw2 parser.tab.cpp output.cpp lex.yy.c
毫无问题地编译它
cmake 和这个命令有什么区别?