Compiling ncat 7.12 from source -- missing 2 files

wget --no-check-certificate https://nmap.org/dist/nmap-7.12.tgz
tar xzf nmap-7.12.tgz
cd nmap-7.12
cd ncat
./configure
(snip)
configure: creating ./config.status
config.status: creating Makefile
config.status: creating config.h
            .       .
            \`-"'"-'/
             } 6 6 {
            ==. Y ,==
              /^^^\  .
             /     \  )  Ncat: A modern interpretation of classic Netcat
            (  )-(  )/
            -""---""---   /
           /   Ncat    \_/
          (     ____
           \_.=|____E
Configuration complete.

~/nmap-7.12/ncat taa$ make

Makefile:212: makefile.dep: No such file or directory
gcc -MM -I./../liblua  -I../libpcap -DHAVE_CONFIG_H -DNCAT_DATADIR="\"/usr/local/share/ncat\"" -D_FORTIFY_SOURCE=2 -I. -I.. -I../nsock/include/ -I../nbase ncat_main.c ncat_connect.c ncat_core.c ncat_posix.c ncat_listen.c ncat_proxy.c ncat_ssl.c base64.c http.c util.c sys_wrap.c http_digest.c ncat_lua.c > makefile.dep
In file included from ncat_main.c:124:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from ncat.h:128,
                 from ncat_main.c:125:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat_connect.c:124:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from ncat.h:128,
                 from ncat_connect.c:125:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:128,
                 from ncat_core.c:123:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:134,
                 from ncat_core.c:123:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from ncat.h:128,
                 from ncat_posix.c:123:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:134,
                 from ncat_posix.c:123:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from ncat.h:128,
                 from ncat_listen.c:123:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:134,
                 from ncat_listen.c:123:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from util.h:128,
                 from http.h:127,
                 from ncat_proxy.c:124:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat_proxy.c:125:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from ncat_ssl.c:123:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat_ssl.c:126:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from base64.c:124:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:128,
                 from http.c:126:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:134,
                 from http.c:126:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from sys_wrap.h:126,
                 from util.c:123:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:134,
                 from util.c:125:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from sys_wrap.h:126,
                 from sys_wrap.c:125:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:128,
                 from http_digest.c:138:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:134,
                 from http_digest.c:138:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
In file included from ncat.h:128,
                 from ncat_lua.c:123:
../nbase/nbase.h:161:26: error: nbase_config.h: No such file or directory
In file included from ncat.h:134,
                 from ncat_lua.c:123:
../nsock/include/nsock.h:65:26: error: nsock_config.h: No such file or directory
make: *** [makefile.dep] Error 1