c - 在 Eclipse 中构建项目时出现问题

Question

在 Eclipse 中构建项目时，我得到以下输出:

make all 

Building file: ../Source/gettimeofday.c

Invoking: GCC C Compiler

gcc -I"/root/Desktop/Eclipse/openwsman/Header" -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -

MF"Source/gettimeofday.d" -MT"Source/gettimeofday.d" -o"Source/gettimeofday.o" "../Source/gettimeofday.c"

../Source/gettimeofday.c:38: warning: ‘struct timezone’ declared inside parameter list

../Source/gettimeofday.c:38: warning: its scope is only this definition or declaration, which is probably not
 what you want

../Source/gettimeofday.c: In function ‘gettimeofday’:

../Source/gettimeofday.c:41: error: dereferencing pointer to incomplete type

../Source/gettimeofday.c:41: error: dereferencing pointer to incomplete type

make: *** [Source/gettimeofday.o] Error 1

有问题的行是:

int gettimeofday(struct timeval *tv, struct timezone *tzp)

该函数在头文件中声明。

你能帮我吗？

Answer 1

GCC 提示 struct timezone 未声明。文件中的几行提示取消引用指向不完整类型的指针。我怀疑 gettimeofday.c:41 使用 tzp 参数。您是否包含了 struct timezone 的声明？在我的系统上，它在 /usr/include/linux/time.h 中声明。