[FE training-materials-updates] yocto: slides: add BB_NUMBER_THREADS back

[Antoine Ténart]

Repository : git://git.free-electrons.com/training-materials.git
On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=c0f49bad460a1d5bbfcaa44e4008fff6f6e0bd52

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commit c0f49bad460a1d5bbfcaa44e4008fff6f6e0bd52
Author: Antoine Tenart <antoine.tenart at free-electrons.com>
Date:   Mon Sep 5 11:37:30 2016 +0200

    yocto: slides: add BB_NUMBER_THREADS back
    
    Signed-off-by: Antoine Tenart <antoine.tenart at free-electrons.com>


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c0f49bad460a1d5bbfcaa44e4008fff6f6e0bd52
 slides/yocto-basics/yocto-basics.tex | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/slides/yocto-basics/yocto-basics.tex b/slides/yocto-basics/yocto-basics.tex
index 85ee458..40173ff 100644
--- a/slides/yocto-basics/yocto-basics.tex
+++ b/slides/yocto-basics/yocto-basics.tex
@@ -118,8 +118,10 @@
     \item The \code{conf/local.conf} configuration file holds local
     user configuration variables:
     \begin{description}
+      \item[BB\_NUMBER\_THREADS] How many tasks BitBake should perform
+        in parallel. Defaults to the number of CPUs on the system.
       \item[PARALLEL\_MAKE] How many processes should be used when
-        compiling.
+        compiling. Defaults to the number of CPUs on the system.
       \item[MACHINE] The machine the target is built for, e.g.
         \code{beaglebone}.
       \item[PACKAGE\_CLASSES] Packages format (\code{deb}, \code{ipk}