compiler warns that exit() isn't defined so checks for build system compiler fail. include <stdlib.h> to define exit() Tested under macos Catalina & Big Sur Signed-off-by: Kevin Darbyshire-Bryant <firstname.lastname@example.org>
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OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.
You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.
gcc binutils bzip2 flex python3 perl make find grep diff unzip gawk getopt subversion libz-dev libc-dev
./scripts/feeds update -a to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default
./scripts/feeds install -a to install symlinks for all obtained
packages into package/feeds/
make menuconfig to select your preferred configuration for the
toolchain, target system & firmware packages.
make to build your firmware. This will download all sources, build the
cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen
applications for your target system.
The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
opkg. If you’re looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
LuCI Web Interface: Modern and modular interface to control the device via a web browser.
OpenWrt Packages: Community repository of ported packages.
OpenWrt Routing: Packages specifically focused on (mesh) routing.
For a list of supported devices see the OpenWrt Hardware Database
OpenWrt is licensed under GPL-2.0