.. |_| unicode:: 0xA0
   :trim:

.. role:: small-caps
   :class: small-caps

.. include:: <isonum.txt>


.. index:: single:Customize



Customize
=========




.. _CustomizingAcompiler:


.. index:: single:Customizing compiler



Customizing compiler
--------------------

These settings are effective at compile-time.

Environment variables (default value in brackets):



* \ :code:`COB_CC`\ 

  C compiler ("gcc")
  


* \ :code:`COB_CFLAGS`\ 

  Flags passed to the C compiler ("-I$(PREFIX)/include")
  


* \ :code:`COB_LDFLAGS`\ 

  Flags passed to the C compiler ("")
  


* \ :code:`COB_LIBS`\ 

  Standard libraries linked with the program ("-L$(PREFIX)/lib -lcob")
  


* \ :code:`COB_LDADD`\ 

  Additional libraries linked with the program ("")
  



.. _CustomizingAlibrary:


.. index:: single:Customizing library



Customizing library
-------------------

These settings are effective at run-time. You can set them either via the
environment or by a runtime configuration file.

To set the global runtime configuration file export \ :code:`COB_RUNTIME_CONFIG`\ 
to point to your configuration file.
To set an explicit runtime configuration file for a single run via
:command:`cobcrun` you can use its option \ :code:`-c <file>`\ ,
\ :code:`--config=<file>`\ .

For displaying the current runtime settings you can use the option
\ :code:`-r`\ , \ :code:`--runtime-env`\  of  :command:`cobcrun`.

For a complete list of runtime variables, aliases, their default values and options
to set them  :ref:`Appendix I <AppendixAI>`.



.. _Optimize: