I have a program that keeps time on its executions.

I use the header file time.h, which I include in my own header file WAFmutex.h.

In WAFmutex.h I included the line:

Typedef struct timespec TIME_SPEC;

In a *.c source file I have the following lines of code:

TIME_SPEC now1, now2;

clock_gettime(CLOCK_REALTIME, &now1);

In the first line which compiles under c, the error when I include std=c99 in my icc compiler commands is

Error: incomplete type is not allowed with karat under now1 and now2.

TIME_SPEC now1, now2;

And the second line gives the error:

Error: identifier CLOCK_REALTIME is undefined;

and,

warning: the following message clock_gettime is declared implicitly.

Now when I compile with gcc the errors are:

TIME_SPEC now1, now2;

clock_gettime(CLOCK_REALTIME, &now1);

In the first line which compiles under c, the error when I include std=c99 in my compiler commands is

Error: storage size of now1 is unknown,

Error: storage size of now2 is unknown,

and for the second line

clock_gettime(CLOCK_REALTIME, &now1);

warning: implicit declaration of function 'clock_gettime'

and

CLOCK_GETTIME is undeclared. First use in this function.

Again, these lines are no problemfor either icc or gcc, until I use -std=c99 in my command line. Then these errors and warning show. These code lines are clearly not compatible with c99.

What changes should I make in my c code to get rid of this warning, and to get rid of the errors? I assume the changes in the c code will get rid of thewarning and errorsfor both the gcc and icc compilers.

I shed the errors for the icc compiler and then the gcc compiler. Anything not clear let me know,I will be happy to answer.

Thanks in advance.

Newport_j