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Adrian Schmutzler 6867d86e08 build: add DEVICE_COMPAT_VERSION and DEVICE_COMPAT_MESSAGE 
We regularly encounter the situation that devices are subject to
changes that will make them incompatible to previous versions.
Removing SUPPORTED_DEVICES will not really be helpful in most of these
cases, as this only helps after a rename.

To solve this situation, this patchset introduces a compatibility
version for devices. It will be implemented via a per-device
Make variable DEVICE_COMPAT_VERSION, which will be set to 1.0
globally by default and then can be overwritten as needed.

Furthermore, a variable DEVICE_COMPAT_MESSAGE is added, where
a message to be displayed during sysupgrade may be specified
optionally.

This patch only implements the build variables and adds them
to the sysupgrade metadata, the evaluation will be addressed
in a subsequent patch.

To set it, one would just need to add the following to a device node:

define Device/somedevice
  ...
  DEVICE_COMPAT_VERSION := 1.1
  DEVICE_COMPAT_MESSAGE := Config cannot be migrated from swconfig to DSA
endef

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-07-31 11:40:15 +02:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
config build: add option to mark devices as BROKEN 2020-07-30 21:49:07 +02:00
include build: add DEVICE_COMPAT_VERSION and DEVICE_COMPAT_MESSAGE 2020-07-31 11:40:15 +02:00
package procd: update to git HEAD 2020-07-30 17:16:53 +01:00
scripts build: add option to mark devices as BROKEN 2020-07-30 21:49:07 +02:00
target ramips: add support for JS76x8 series DEV boards 2020-07-31 11:40:15 +02:00
toolchain toolchain: add PKG_RELEASE if local files 2020-07-29 17:13:51 +02:00
tools tools/mkimage: create .itb file with read-access for group,other not just owner. 2020-07-23 14:25:10 -04:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore build: improve ccache support 2020-07-11 15:19:53 +02:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in merge: base: update base-files and basic config 2017-12-08 19:41:18 +01:00
feeds.conf.default feeds: add freifunk feed 2020-06-24 14:58:17 +02:00
LICENSE finally move buildroot-ng to trunk 2016-03-20 17:29:15 +01:00
Makefile build: improve ccache support 2020-07-11 15:19:53 +02:00
README build: switch to Python 3 2019-07-26 08:09:16 +02:00
rules.mk build: improve ccache support 2020-07-11 15:19:53 +02:00

README 

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------

This is the buildsystem for the OpenWrt Linux distribution.

To build your own firmware you need a Linux, BSD or MacOSX system (case
sensitive filesystem required). Cygwin is unsupported because of the lack
of a case sensitive file system.

You need gcc, binutils, bzip2, flex, python3.5+, perl, make, find, grep, diff,
unzip, gawk, getopt, subversion, libz-dev and libc headers installed.

1. Run "./scripts/feeds update -a" to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default

2. Run "./scripts/feeds install -a" to install symlinks for all obtained
packages into package/feeds/

3. Run "make menuconfig" to select your preferred configuration for the
toolchain, target system & firmware packages.

4. Run "make" to build your firmware. This will download all sources, build
the cross-compile toolchain and then cross-compile the Linux kernel & all
chosen applications for your target system.

Sunshine!
	Your OpenWrt Community
	http://www.openwrt.org