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Georgi Valkov be41cc497c generic: fix PATH_MAX macro redefined in exec-cmd.c on macOS 15.4 
Fix an error while building target/linux x64 on macOS 15.4 host,
due to the PATH_MAX macro being redefined:

mkdir -p /Volumes/test/openwrt/build_dir/target-x86_64_musl/linux-x86_64/linux-6.6.86/tools/objtool && make O=/Volumes/test/openwrt/build_dir/target-x86_64_musl/linux-x86_64/linux-6.6.86 subdir=tools/objtool --no-print-directory -C objtool
exec-cmd.c:15:9: error: 'PATH_MAX' macro redefined [-Werror,-Wmacro-redefined]
   15 | #define PATH_MAX        4096
      |         ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/sys/syslimits.h:103:9: note: previous definition is here
  103 | #define PATH_MAX                 1024   /* max bytes in pathname */
      |         ^

exec-cmd.c is compiled as part of objtool to run on the host, and
therefore host headers are used, where PATH_MAX is already defined.
Using an old OpenWRT snapshot from 2025-02-16, where linux-6.6.77
used to build correctly, does not help. Reverting from Xcode 16.3 to
16.2 does not help either.

Signed-off-by: Georgi Valkov <gvalkov@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/18530
(cherry picked from commit b77e6cd6272d55af7ea64200dd2358666d25b6db)
Signed-off-by: Georgi Valkov <gvalkov@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/23710
Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit 33a8c1c96c25f870e5d86cbb1a3e66c2d388a83c)
2026-08-18 11:40:41 +01:00
.devcontainer/ci-env
.github formal: fix workflow permissions 2026-07-09 10:57:34 +01:00
.gitlab ci: build: generate release version files for tags 2026-08-18 09:06:22 +00:00
.testbed ci: testbed: labgrid: bump OSPv2 login_timeout for lcm_data reformat 2026-07-02 07:30:07 +02:00
.vscode meta: VS Code: add "Git: Always Sign Off" setting 2024-10-03 17:18:51 +02:00
config mold: dont allow on MacOS 2026-07-09 10:57:30 +01:00
include OpenWrt v24.10.7: revert to branch defaults 2026-08-18 11:40:41 +01:00
LICENSES
package OpenWrt v24.10.7: revert to branch defaults 2026-08-18 11:40:41 +01:00
profiles profiles: prpl_core.yml: feed_prplmesh: pwhm: fix setting fh ssid leads to disconnecting extender on bh BSS 2026-08-17 13:25:51 +01:00
scripts scripts/ext-tools.sh: set all prebuilt tool files to same timestamp 2026-08-18 11:40:40 +01:00
target generic: fix PATH_MAX macro redefined in exec-cmd.c on macOS 15.4 2026-08-18 11:40:41 +01:00
toolchain toolchain: gdb: backport patch to fix build with Clang 21 2026-08-18 11:40:41 +01:00
tools tools/ccache: same behaviour for local and CI builds 2026-07-09 10:57:30 +01:00
.gitattributes
.gitignore ci: cram: add DHCPv4 Force option cram tests 2026-06-02 17:59:31 +01:00
.gitlab-ci.yml ci: docker: drop the in-tree testbed container 2026-07-28 10:14:51 +01:00
BSDmakefile
Config.in
COPYING
feeds.conf.default OpenWrt v24.10.7: revert to branch defaults 2026-08-18 11:40:41 +01:00
Makefile build,base-files: propagate prplOS version into build artifacts 2025-07-31 15:18:10 +00:00
README.md README: replace "MacOSX" with "macOS" 2024-04-01 18:46:30 +02:00
rules.mk build: do not set CCACHE_COMPILERCHECK 2026-08-18 11:40:40 +01:00

README.md

OpenWrt logo

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.

Sunshine!

Download

Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.

If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.

An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:

Development

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

Requirements

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.

binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.7+ rsync subversion unzip which

Quickstart

  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 GNU/Linux kernel & all chosen applications for your target system.

Related Repositories

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called 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.

  • OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).

Support Information

For a list of supported devices see the OpenWrt Hardware Database

Documentation

Support Community

  • Forum: For usage, projects, discussions and hardware advise.
  • Support Chat: Channel #openwrt on oftc.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0