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kBuild / VBox Build Tricks
==========================
Introduction
------------
This document is written in reStructuredText (rst) which just happens to
be used by Python, the primary language for this revamp. For more information
on reStructuredText: http://docutils.sourceforge.net/rst.html
Changing the output directory
-----------------------------
When switch between different VBox build settings it can be nice to have
different output directories to avoid having to rebuild the whole source tree
everything. One typical example is hardening, another is guest additions using
crossbuild gcc w/ SDK. The latter is is simpler so that's the first example:
.. code:: makefile
ifdef VBOX_WITH_COMPATIBLE_LINUX_GUEST_PACKAGE
PATH_OUT_BASE = $(PATH_ROOT)/add-out
endif
The following example is the typical developer setup, i.e. disable hardening by
default but respect command line overrides (kmk VBOX_WITH_HARDENING=1):
.. code:: make
VBOX_WITH_HARDENING :=
ifeq ($(VBOX_WITH_HARDENING),)
VBOX_WITHOUT_HARDENING=1
else
PATH_OUT_BASE = $(PATH_ROOT)/hard-out
endif
Share tools download directory between trunk and branches
---------------------------------------------------------
To avoid filling up your disk with unnecessary tool zip and tar.gz files, set
the FETCHDIR variable in LocalConfig.kmk to point to a common directory for all
VBox checkouts.
.. code:: make
FETCHDIR = $(HOME)/Downloads/FetchDir
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.. [1] no such footnote
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:Status: $Id: kBuild-tricks.txt $
:Copyright: Copyright (C) 2006-2020 Oracle Corporation.
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