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-rw-r--r--nuttx/README.txt26
1 files changed, 24 insertions, 2 deletions
diff --git a/nuttx/README.txt b/nuttx/README.txt
index 2ff473fa0..c597091dc 100644
--- a/nuttx/README.txt
+++ b/nuttx/README.txt
@@ -280,8 +280,14 @@ NuttX Configuration Tool
make menuconfig
- This make target will bring up NuttX configuration menus. The
- 'menuconfig' target depends on two things:
+ This make target will bring up NuttX configuration menus.
+
+ WARNING: Never do 'make menuconfig' on a configuration that has
+ not been converted to use the kconfig-frontends tools! This will
+ damage your configuration (see
+ http://www.nuttx.org/doku.php?id=wiki:howtos:convertconfig).
+
+ The 'menuconfig' make target depends on two things:
1. The Kconfig configuration data files that appear in almost all
NuttX directories. These data files are the part that is still
@@ -319,6 +325,22 @@ NuttX Configuration Tool
This is pretty straight forward for creating new configurations
but may be less intuitive for modifying existing configurations.
+Refreshing Configurations with 'make oldconfig'
+-----------------------------------------------
+
+ Whenever you use a configuration, you really should always do
+ the following *before* you make NuttX:
+
+ make oldconfig
+
+ This will make sure that the configuration is up-to-date in
+ the event that it has lapsed behind the current NuttX development.
+
+ WARNING: Never do 'make oldconfig' (OR 'make menuconfig') on a
+ configuration that has not been converted to use the kconfig-frontends
+ tools! This will damage your configuration (see
+ http://www.nuttx.org/doku.php?id=wiki:howtos:convertconfig).
+
Incompatibilities with Older Configurations
-------------------------------------------