tarlz 0.16 build failure on FreeBSD 11.3

[David Glover-Aoki]

Sorry if this question is too simple/stupid.

tarlz is not included in the FreeBSD ports so I'm trying to build it from 
source, but I get the following error:

c++ -O2 -c create.cc -o create.o
create.cc:33:10: fatal error: 'sys/sysmacros.h' file not found
#include <sys/sysmacros.h>              // for major, minor
         ^~~~~~~~~~~~~~~~~
1 error generated.
*** Error code 1

I did some Googling to figure out if "sysmacros.h" is maybe included in a 
package I don't have installed but I couldn't find anything helpful.

Thanks,

David.