===> Building for plist-utils-20180222
--- plist_getline.o ---
--- plist_tree.o ---
--- sort.o ---
--- plist_getline.o ---
clang -O2    -c plist_getline.c
--- plist_tree.o ---
clang -O2    -c plist_tree.c
--- sort.o ---
clang -O2    -c sort.c
--- add.o ---
clang -O2    -c add.c
--- del.o ---
--- plist_tree.o ---
plist_tree.c:37:10: fatal error: 'sys/rbtree.h' file not found
#include <sys/rbtree.h>
         ^~~~~~~~~~~~~~
--- del.o ---
clang -O2    -c del.c
--- plist_tree.o ---
1 error generated.
*** [plist_tree.o] Error code 1

bmake: stopped in /var/pkgsrc/work/pkgtools/plist-utils/work/plist-utils-20180222
1 error

bmake: stopped in /var/pkgsrc/work/pkgtools/plist-utils/work/plist-utils-20180222
*** Error code 2

Stop.
bmake[1]: stopped in /usr/pkgsrc/pkgtools/plist-utils
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/pkgtools/plist-utils