[dpdk-dev] [PATCH v3] build: mention machine=default and its use in documentation

[luca.boccassi at gmail.com]

From: Luca Boccassi <bluca at debian.org>

Document the new value, as it's useful for distributions and users
who need to use a stable baseline -march

Signed-off-by: Luca Boccassi <bluca at debian.org>
Reviewed-by: Christian Ehrhardt <christian.ehrhardt at canonical.com>
Reviewed-by: Jerin Jacob <jerinj at marvell.com>
---
v2: fix typo, add commit body and reviewed-by
v3: added one more reviewed-by, reworded the note as suggested

 doc/build-sdk-meson.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/build-sdk-meson.txt b/doc/build-sdk-meson.txt
index 912cb3a8c..7b802442b 100644
--- a/doc/build-sdk-meson.txt
+++ b/doc/build-sdk-meson.txt
@@ -82,6 +82,8 @@ Project-specific options are passed used -Doption=value::
 
 	meson -Denable_docs=true fullbuild  # build and install docs
 
+	meson -Dmachine=default  # use builder-independent baseline -march
+
 Examples of setting the same options using meson configure::
 
 	meson configure -Dwerror=true
@@ -98,6 +100,9 @@ should be used to change the build settings within the directory, and when
 ``ninja`` is called to do the build itself, it will trigger the necessary
 re-scan from meson.
 
+NOTE: machine=default uses a config that works on all supported architectures
+regardless of the capabilities of the machine where the build is happening.
+
 As well as those settings taken from ``meson configure``, other options
 such as the compiler to use can be passed via environment variables. For
 example::
-- 
2.20.1