Выполнение файла

Как выполнить makefile? Этот файл содержится в файле sts-2.1.2, загружаемом отсюда:

Согласно документации NIST (раздел 5.3), мне нужно отредактировать makefile.

user@SC13-VM:~/Documents/sts-2.1.2$ ./makefile
./makefile: line 1: CC: command not found
./makefile: line 2: GCCFLAGS: command not found
./makefile: line 3: ROOTDIR: command not found
./makefile: line 4: ROOTDIR: command not found
./makefile: line 4: SRCDIR: command not found
./makefile: line 5: ROOTDIR: command not found
./makefile: line 5: OBJDIR: command not found
./makefile: line 6: VPATH: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
./makefile: line 8: OBJDIR: command not found
 ......

Всего 94 строки.

Затем я сделал, как вы сказали:

 user@SC13-VM:~/Documents/sts-2.1.2$ make makefile
 make: Nothing to be done for `makefile'.
 user@SC13-VM:~/Documents/sts-2.1.2$ ls
 data  experiments  include  makefile  makefile~  obj  src  templates

 user@SC13-VM:~/Documents/sts-2.1.2$ make  makefile
 make: Nothing to be done for `makefile'.