Thread: Trying to Compile a Dhrystone C Code program

Hi Everyone:

Please forgive me since I'm a newbie in Linux Programming. (I've been programming in Windows for a long time)

I'm trying to compile a drhystone C code program that I obtained from here

http://www.netlib.org/benchmark/dhry-c

This is a script and I actually downloaded the script and ran "sh dhry-c" to get all my C-files.

Then, I type in gcc dhry_1.c -o dhrybench and I get this following error:

/usr/include/sys/times.h:49: error: previous declaration of `times'
dhry_1.c: In function `main':
dhry_1.c:266: error: `HZ' undeclared (first use in this function)
dhry_1.c:266: error: (Each undeclared identifier is reported only once
dhry_1.c:266: error: for each function it appears in.)

I'm not exactly sure why I got this error because the "HZ" function is defined in one of the header files.

Is there an option I need to put into the gcc command line or is this benchmark broken?

Please respond as soon as possible. Time is very limited. Thanks a lot

Code:

$ gcc -DTIME dhry_1.c dhry_2.c
dhry_1.c:31: warning: conflicting types for built-in function ‘malloc’
dhry_1.c: In function ‘main’:
dhry_1.c:94: warning: incompatible implicit declaration of built-in function ‘strcpy’

I get an executable, which I then enter a large number into to get it to produce an answer.

Originally Posted by Salem

Code:

$ gcc -DTIME dhry_1.c dhry_2.c
dhry_1.c:31: warning: conflicting types for built-in function ‘malloc’
dhry_1.c: In function ‘main’:
dhry_1.c:94: warning: incompatible implicit declaration of built-in function ‘strcpy’

I get an executable, which I then enter a large number into to get it to produce an answer.

Dumb question, what does -DTIME do?

man gcc