autorun.sh :

 Set LIBTOOLIZE to libtoolize /glibtoolize ; This is used for versioning shared libs

 aclocal ; {   Generate 'aclocal.m4' by scanning `configure.ac' or `configure.in'
               acinclude.m4 will be included if exists.
               These macros will be used by automake, autoconf and other auto* tools.
           }
           
 autoheader {  Creates configure.h.in template file from configure.in }

 $LIBTOOLIZE --automake --force --copy {
          Run because configure.in specifies: AC_PROG_LIBTOOL
          Example uses of libtool.
             1. compile to produce name.lo (shared obj) and  name.o files.
             libtool  --mode=compile  gcc -c   hello.c # This runs following commands:
                gcc -c -fPIC -DPIC hello.c
                mv  hello.o  hello.lo
                gcc -c hello.c
             Note: You don't need to insert -fPIC -DPIC calls!
             It typically creates binary in .libs/ dir and creates wrapper script in curdir.
             libtool  --mode=execute gdb hell  # executes hell script and invokes gdb

    }

 automake --add-missing --force  --copy {
      Generate Makefile.in from Makefile.am 
      ./configure generates Makefile from Makefile.in
      copies over files like config.guess to current dir.
      --foreign  : Makes the global strictness -- to be compatible with non-gnu make

      automake calls autoconf to scan configure.ac and configure.in to recognize
      certain macros and then generate Makefile.in ;
      Note: However, you need to run autoconf separately to create configure script
 }

autoconf {
     autoconf invokes m4 macro processor with built-in macros from 
     /usr/share/autoconf/autom4te.cfg  and ./aclocal.m4 (created by aclocal)
     and writes output to ./configure
}

Note:  libtool  -n  (--dry-run)   # dry run
                --config
                --mode=MODE :



Note: run ranlib staticlib.a to optimize the library symbols access time.

If you want to use libtool's versioning system, then you must specify
the version information to libtool using the `-version-info' flag
during link mode (*note Link mode::).
     
   This flag accepts an argument of the form
`CURRENT[:REVISION[:AGE]]'.  So, passing `-version-info 3:12:1' sets
CURRENT to 3, REVISION to 12, and AGE to 1.

If you dlopen a library libhello, then on some OSs, it must be linked with --module
option :
        burger$ libtool --mode=link gcc -module -o libhello.la foo.lo \
                     hello.lo -rpath /usr/local/lib -lm

If the symbols in exe file needed to satisfy your dlopen, then  the exefile should
be linked with -export-dynamic option in libtool.


Note:  GNU hello (ftp://prep.ai.mit.edu/pub/gnu/hello-1.3.tar.gz) is renowned
       for its classic simplicity and versatility.  supports autoconfig framework.

Packages you will need : 
    aclocal libtool ncurses??? 

apt get g++