CURRENT: /usr/src/sbin/newfs_nandfs/newfs_nandfs.c:89:18: error: no previous extern declaration for non-static variable

While trying to build  buildworld with 

WITH_NAND=              YES

in /etc/src.conf

I receive this error below.


[...]
ld -dc -r -o stty.lo
stty_stub.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/stty/cchar.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/stty/gfmt.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/stty/key.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/stty/modes.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/stty/print.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/stty/stty.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/stty/util.o
crunchide -k _crunched_stty_stub stty.lo
ld -dc -r -o sync.lo
sync_stub.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/sync/sync.o
crunchide -k _crunched_sync_stub sync.lo
ld -dc -r -o test.lo
test_stub.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/test/test.o
crunchide -k _crunched_test_stub test.lo
ld -dc -r -o rcp.lo
rcp_stub.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/rcp/rcp.o /usr/obj/usr/src/rescue/rescue//usr/src/bin/rcp/util.o
crunchide -k _crunched_rcp_stub rcp.lo
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:83:18: error: no previous
extern declaration for non-static variable
'user_files' [-Werror,-Wmissing-variable-declarations]
struct file_info user_files[] =
                 ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:88:18: error: no previous
extern declaration for non-static variable
'ifile' [-Werror,-Wmissing-variable-declarations]
struct file_info ifile = {NANDFS_IFILE_INO, NULL, 0, 0, -1, NULL, NULL};
                 ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:89:18: error: no previous
extern declaration for non-static variable
'sufile' [-Werror,-Wmissing-variable-declarations]
struct file_info sufile = {NANDFS_SUFILE_INO, NULL, 0, 0, -1, NULL,
NULL};
                 ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:90:18: error: no previous
extern declaration for non-static variable
'cpfile' [-Werror,-Wmissing-variable-declarations]
struct file_info cpfile = {NANDFS_CPFILE_INO, NULL, 0, 0, -1, NULL,
NULL};
                 ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:91:18: error: no previous
extern declaration for non-static variable
'datfile' [-Werror,-Wmissing-variable-declarations]
struct file_info datfile = {NANDFS_DAT_INO, NULL, 0, 0, -1, NULL, NULL};
                 ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:123:9: error: no previous
extern declaration for non-static variable
'volumelabel' [-Werror,-Wmissing-variable-declarations]
u_char *volumelabel = NULL;
        ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:109:22: error: no previous
extern declaration for non-static variable
'fsdata' [-Werror,-Wmissing-variable-declarations]
struct nandfs_fsdata fsdata;
                     ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:110:27: error: no previous
extern declaration for non-static variable
'super_block' [-Werror,-Wmissing-variable-declarations]
struct nandfs_super_block super_block;
                          ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:125:27: error: no previous
extern declaration for non-static variable
'sr' [-Werror,-Wmissing-variable-declarations]
struct nandfs_super_root *sr;
                          ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:127:10: error: no previous
extern declaration for non-static variable
'nuserfiles' [-Werror,-Wmissing-variable-declarations]
uint32_t nuserfiles;
         ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:128:10: error: no previous
extern declaration for non-static variable
'seg_segsum_size' [-Werror,-Wmissing-variable-declarations]
uint32_t seg_segsum_size;
         ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:129:10: error: no previous
extern declaration for non-static variable
'seg_nblocks' [-Werror,-Wmissing-variable-declarations]
uint32_t seg_nblocks;
         ^
/usr/src/sbin/newfs_nandfs/newfs_nandfs.c:130:10: error: no previous
extern declaration for non-static variable
'seg_endblock' [-Werror,-Wmissing-variable-declarations]
uint32_t seg_endblock;
         ^
13 errors generated.
*** [newfs_nandfs.o] Error code 1
1 error
*** [all] Error code 2
1 error
*** [sbin.all__D] Error code 2