[Help] Snapshot build failing for Archer C20 v5 (Error due to spaces in PATH in WSL)

[devx]

Hi everyone,
I build snapshot images for my TP-Link Archer C20 v5 regularly — usually every 1–2 weeks. For a very long time I never had major issues, but for the past two weeks my build has started failing with this error:

 make[2] package/install
make -r world: build failed. Please re-run make with -j1 V=s or V=sc for a higher verbosity level to see what's going on
make: *** [/home/salman/work/openwrt/include/toplevel.mk:233: world] Error 1

What I’m doing (same workflow as always):

1. Pull latest changes from master branch

   git pull
   
   

2. Update + install feeds

   ./scripts/feeds update -a
   ./scripts/feeds install -a
   
   

3. Run make menuconfig (same config I always use)

4. Build

   make -j$(nproc)
   
   

Device

TP-Link Archer C20 v5
Target: ramips
Subtarget: mt76x8

What changed

I have been doing this same workflow, but only recently the snapshot build started failing. There were no changes in my .config at first — and even after regenerating a fresh config, the error still appears.

What I need help with

• Is there a known issue in the recent master branch affecting ramips / mt76x8 builds?

• What’s the recommended way to debug this kind of failure?

• Should I upload logs from make -j1 V=s here?

Thanks in advance. Please let me know what other info I should provide.

[frollic]

Cmake update have been causing compile issues for several packages recently.

You can also check OpenWRT faillogs, it might not only be you.

Cmake 4.1.2 broke ~100 packages (due to old stuff in upstream CMakeLists.txt)

Cmake compiling tool was recently updated to 4.1.2, which has broken about 100 packages. The newer cmake versions require that the CMakeLists.txt file in upstream sources claims compatibility with at least cmake 3.5. And many old versions of packages still have a specification for older cmake in their sources. The cmake failures are pretty visible: CMake Error at CMakeLists.txt:1 (cmake_minimum_required): Compatibility with CMake < 3.5 has been removed from CMake. Update the VERSION argum…

[hnyman]

@devx

Is there a known issue in the recent master branch affecting ramips / mt76x8 builds?

No.
buildbot builds mt76x8 images just fine.

• https://buildbot.openwrt.org/images/#/builders/6

@devx

Should I upload logs from make -j1 V=s here?

You should at least look at the sensible log from the single-threaded build with verbose logging. Just posting here the above three lines that basically just say that "it does not work" doesn't give us any clues.

(Look at the verbose single-threaded log, and post only the relevant errors from the end.)

@frollic

Cmake update have been causing compile issues for several packages recently.

Based on the buildbot faillogs, no cmake related problems any more.

[devx]

@hnyman

You should at least look at the sensible log from the single-threaded build with verbose logging. Just posting here the above three lines that basically just say that "it does not work" doesn't give us any clues.

Thanks for the suggestions. I found the cause of the build failure. It wasn’t OpenWrt itself, but my build environment.

During the build with make -j1 v=s, I noticed this message:

find: The relative path 'Files/JetBrains/IntelliJ' is included in the PATH environment variable, which is insecure in combination with the -execdir action of find. Please remove that entry from $PATH

Some Windows paths were accidentally appended to my WSL $PATH, and that was breaking the build process. After removing the Windows paths from $PATH, the OpenWrt snapshot build completed successfully.

So the issue was caused by an incorrect environment setup, not by the OpenWrt source.

[hnyman]

@devx

Some Windows paths were accidentally appended to my WSL $PATH

Nice that you found the solution.

Just to document for others, the problems arising from Windows PATH with spaces are mentioned in the wiki article about compiling OpenWrt in WSL:

• https://openwrt.org/docs/guide-developer/toolchain/wsl

To be able to build an OpenWrt image, you must not have spaces in PATH or in the work folders on the drive

[mietekn]

Instead of make run:
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin make