gcc 编译时候一个诡异的问题

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如题，只是包含了一个简单的 iostream ，依赖到最后慢慢的包含了系统的 time.h ，导致无法编译通过

In file included from /usr/include/sched.h:34,
from /usr/include/pthread.h:25,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/x86_64-redhat-linux/bits/gthr-default.h:41,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/x86_64-redhat-linux/bits/gthr.h:162,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/ext/atomicity.h:34,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/bits/ios_base.h:41,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/ios:43,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/ostream:40,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/iostream:40,
from ../commonutil/Config.h:124,
from ../commonutil/ArgVector.h:4,
from ArgVector.cpp:1:
./time.h:27: 错误：‘ Int64 ’未声明
./time.h:28: 错误：‘ Int64 ’未声明
./time.h:29: 错误：‘ Int64 ’未声明
./time.h:30: 错误：‘ time_t ’未声明
./time.h:31: 错误：‘ time_t ’未声明
./time.h:33: 错误：‘ time_t ’未声明
./time.h:34: 错误：‘ time_t ’未声明

[user@centos6 test]$ find /usr -name time.h
/usr/include/linux/time.h
/usr/include/sys/time.h
/usr/include/bits/time.h
/usr/include/time.h
find: “/usr/lib64/audit ”: 权限不够
/usr/src/kernels/2.6.32-431.el6.x86_64/include/config/netfilter/xt/match/time.h
/usr/src/kernels/2.6.32-431.el6.x86_64/include/linux/time.h
/usr/src/kernels/2.6.32-431.el6.x86_64/arch/x86/include/asm/time.h
[user@centos6 test]$

日了狗了，有没有遇到过这种问题的？

usr

include

4.4.7

Time

8 replies • 2017-05-09 22:30:25 +08:00

arakashic

Apr 27, 2017

贴一下代码、编译方法和环境吧

copen

Apr 27, 2017

编译 c 还是 c++? 如果是 c++链接动态库了吗？ -lstdc++

taozhijiangscu

Apr 27, 2017

@arakashic

公司的东西，贴出来不太方便吧

其实就是#include <iostream>，结果就搞到很多 C 头上面去了

arakashic

Apr 27, 2017

@taozhijiangscu 那这样，下面这个编译正常吗？
#include <iostream>

int main(int argc, char *argv[])
{
std::cout << "hw" << std::endl;
return 0;
}
我猜你代码的当前目录有一个 time.h 吧

taozhijiangscu

Apr 28, 2017

@arakashic

正常。项目中没有 time.h

唉，蛋疼……

cooldadiao

May 5, 2017

用 g++不是 gcc

taozhijiangscu

May 6, 2017

@cooldadiao

是 g++

pright

May 9, 2017

这个看起来就是引用了 ArgVector.cpp 所在目录下的 time.h，检查下项目的 makefile 里面对于头文件路径的设置。