5aa1b9ad68
When libelf from tools/ is used for building the kernel, compilation
aborts due to access to undefined defines since Kbuild adds -Wundef
to the compiler flags.
Patch the header files to use `#if defined(...)` instead of `#if ...`
to prevent such issues.
Ref: https://github.com/NixOS/nixpkgs/issues/59929
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit f3ab336d7c)
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|_______|| __|_____|__|__||________||__| |____|
|__| 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, python, 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