+To compile tar (and rmt, if your system has the needed features) on
+Unix-like systems:
+
+1. Type `./configure'. This shell script attempts to guess correct
+values for various system-dependent variables used during compilation,
+and creates the file `Makefile'. This takes a couple of minutes.
+
+If you want to compile in a different directory from the one
+containing the source code, `cd' to that directory and run `configure'
+with the option `+srcdir=DIR', where DIR is the directory that
+contains the source code. The object files and executables will be
+put in the current directory. This option only works with versions of
+`make' that support the VPATH variable. `configure' ignores any other
+arguments you give it.
+
+If your system requires unusual options for compilation or linking
+that `configure' doesn't know about, you can give `configure' initial
+values for variables by setting them in the environment; in
+Bourne-compatible shells, you can do that on the command line like
+this:
+$ CC='gcc -traditional' LIBS=-lposix ./configure
+
+2. If you want to change the directories where the programs will be
+installed, or the optimization options, edit `Makefile' and change
+those values. If you have an unusual system that needs special
+compilation options that `configure' doesn't know about, and you
+didn't pass them in the environment when running `configure', you
+should add them to `Makefile' now. Alternately, teach `configure' how
+to figure out that it is being run on a system where they are needed,
+and mail the diffs to the address listed at the top of this file so we
+can include them in the next release.
+
+3. Type `make'.
+
+4. If your system needs to link with -lPW to get alloca, but has
+rename in the C library (so WANT_RENAME is not used), -lPW might give
+you an incorrect version of rename. On HP-UX this manifests itself as
+an undefined data symbol called "Error" when linking tar. If this
+happens, use `ar x' to extract alloca.o from libPW.a and `ar rc' to
+put it in a library liballoca.a, and put that in LIBS instead of -lPW.
+This problem does not occur when using gcc, which has alloca built in.
+
+5. If the programs compile successfully, type `make install' to
+install them.
+
+6. After you have installed the programs, you can remove the binaries
+from the source directory by typing `make clean'. Type `make
+distclean' if you also want to remove `Makefile', for instance if you
+are going to recompile tar next on another type of machine.