[bootlin/training-materials updates] master: slides/buildroot-advanced: slightly re-organize BR2_EXTERNAL slides (c9140796)

[Thomas Petazzoni]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/c9140796e4fab11c7f6a7b755c672b98f818926d

>---------------------------------------------------------------

commit c9140796e4fab11c7f6a7b755c672b98f818926d
Author: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Date:   Sat Mar 11 12:12:10 2023 +0100

    slides/buildroot-advanced: slightly re-organize BR2_EXTERNAL slides
    
    Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>


>---------------------------------------------------------------

c9140796e4fab11c7f6a7b755c672b98f818926d
 slides/buildroot-advanced/buildroot-advanced.tex | 46 ++++++++++++------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/slides/buildroot-advanced/buildroot-advanced.tex b/slides/buildroot-advanced/buildroot-advanced.tex
index c438921b..7688e58a 100644
--- a/slides/buildroot-advanced/buildroot-advanced.tex
+++ b/slides/buildroot-advanced/buildroot-advanced.tex
@@ -48,10 +48,32 @@
   \end{itemize}
 \end{frame}
 
-\begin{frame}{{\tt BR2\_EXTERNAL}: mechanism}
+\begin{frame}[fragile]{Using {\tt BR2\_EXTERNAL}}
   \begin{itemize}
   \item Specify, as a colon-separated list, the {\em external}
     directories in \code{BR2_EXTERNAL}
+  \item Not a configuration option, only an {\bf environment variable}
+    to be passed on the command line
+    \begin{block}{}
+\begin{verbatim}
+make BR2_EXTERNAL=/path/to/external1:/path/to/external2
+\end{verbatim}
+    \end{block}
+  \item {\bf Automatically saved} in the hidden \code{.br2-external.mk}
+    file in the output directory
+    \begin{itemize}
+    \item no need to pass \code{BR2_EXTERNAL} at every make invocation
+    \item can be changed at any time by passing a new value, and
+      removed by passing an empty value
+    \end{itemize}
+  \item Can be either an {\bf absolute} or a {\bf relative} path, but
+    if relative, important to remember that it's relative to the
+    Buildroot source directory
+  \end{itemize}
+\end{frame}
+
+\begin{frame}{{\tt BR2\_EXTERNAL}: important files}
+  \begin{itemize}
   \item Each {\em external} directory must contain:
     \begin{itemize}
     \item \code{external.desc}, which provides a name and description
@@ -166,28 +188,6 @@ include $(sort $(wildcard $(BR2_EXTERNAL_<NAME>_PATH)/package/*/*.mk))
   \end{block}
 \end{frame}
 
-\begin{frame}[fragile]{Using {\tt BR2\_EXTERNAL}}
-  \begin{itemize}
-  \item Not a configuration option, only an {\bf environment variable}
-    to be passed on the command line
-    \begin{block}{}
-\begin{verbatim}
-make BR2_EXTERNAL=/path/to/external1:/path/to/external2
-\end{verbatim}
-    \end{block}
-  \item {\bf Automatically saved} in the hidden \code{.br2-external.mk}
-    file in the output directory
-    \begin{itemize}
-    \item no need to pass \code{BR2_EXTERNAL} at every make invocation
-    \item can be changed at any time by passing a new value, and
-      removed by passing an empty value
-    \end{itemize}
-  \item Can be either an {\bf absolute} or a {\bf relative} path, but
-    if relative, important to remember that it's relative to the
-    Buildroot source directory
-  \end{itemize}
-\end{frame}
-
 \begin{frame}[fragile]{Use {\tt BR2\_EXTERNAL} in your configuration}
 
   \begin{itemize}