mkconfig - configuration tool (version 1.2).

Please e-mail any configuration units and the corresponding
manual page entry to bll6969di_at_gmail.com.
They will be included in the next release.
Please try to give them a name that reflects what the unit does.
If you have a test that can verify the unit works, please include
that also.

CHANGES

    1.3                                     [1 may 2010]
        Use the configuration file to determine the necessary 
          libraries to link in rather than linking in all found.
        Change library format to allow better control of link
          tests.
        Change dosubst() to always use sed.  It's more reliable.

    1.2                                     [12 mar 2010]
        Rewrite mkconfig.sh to use unit scripts and increase performance.
        Add environment units.
        Allow _MKCONFIG_SHELL to override shell.

    1.1 (di ver 4.19)                       [1 Feb 2010]
        Changed format of config.h file.
        Fixed a quoting bug in mkconfig.sh.
        mkconfig enhancements and cleanup.

    1.0 (di ver 4.18)                       [29 Nov 2009]
        Initial coding
