# Problem while building mt76 package **URL:** \ **Category:** For Developers\ **Created:** [March 29, 2026, 12:30pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387 "2026-03-29T12:30:38Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![RolandoMagico](https://forum.openwrt.org/user_avatar/forum.openwrt.org/rolandomagico/32/52518_2.png) [@RolandoMagico](https://forum.openwrt.org/u/RolandoMagico)\ **Post date:** [March 29, 2026, 12:30pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/1 "2026-03-29T12:30:38Z")
Hi, I try to build OpenWrt for a new device and get an error during build: `make[3]: *** No rule to make target '/home/runner/work/openwrt-build/openwrt-build/openwrt/staging_dir/target-aarch64_cortex-a53_musl/usr/include/mac80211-backport/backport/autoconf.h', needed by '/home/runner/work/openwrt-build/openwrt-build/openwrt/build_dir/target-aarch64_cortex-a53_musl/linux-mediatek_filogic/mt76-2026.03.19~39c960c3/.configured_b1c6ae92f8e974e60b47b3e5ad3573cc'. Stop.` I tried main and openwrt-25.12, same result. I think it’s unlikely that both branches are currently not buildable. Is there something missing in the build environment? I’m using ubuntu-latest GitHub runners for the build and installed all required packages according to the wiki instructions. But I see the same error also when building locally on Linux Mint. Any help is appreciated. Thanks Roland ---
**Author:** ![Dante](https://forum.openwrt.org/user_avatar/forum.openwrt.org/dante/32/118611_2.png) [@Dante](https://forum.openwrt.org/u/Dante)\ **Post date:** [March 29, 2026, 12:33pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/2 "2026-03-29T12:33:36Z")
What are the commands that you're running? ---
**Author:** ![RolandoMagico](https://forum.openwrt.org/user_avatar/forum.openwrt.org/rolandomagico/32/52518_2.png) [@RolandoMagico](https://forum.openwrt.org/u/RolandoMagico)\ **Post date:** [March 29, 2026, 12:37pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/3 "2026-03-29T12:37:19Z")
I clone [https://github.com/RolandoMagico/openwrt/tree/E30](https://github.com/RolandoMagico/openwrt/tree/E30) and then run: ```plaintext ./scripts/feeds update -a ./scripts/feeds install -a make menuconfig ``` There I select my device, additionally enable built-in Luci. Then I run: `make -j4` ---
**Author:** ![slh](https://forum.openwrt.org/user_avatar/forum.openwrt.org/slh/32/113591_2.png) [@slh](https://forum.openwrt.org/u/slh)\ **Post date:** [March 29, 2026, 1:03pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/4 "2026-03-29T13:03:37Z")
I've just successfully built main/HEAD (92c7feebd2647c482a6597e7d799109c5e4aee7d) with mt76 for filogic 830, x86\_64/ mt7921au, ipq806x/ mt7921au and mt7621a/ mt7915. ---
**Author:** ![RolandoMagico](https://forum.openwrt.org/user_avatar/forum.openwrt.org/rolandomagico/32/52518_2.png) [@RolandoMagico](https://forum.openwrt.org/u/RolandoMagico)\ **Post date:** [March 29, 2026, 1:39pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/5 "2026-03-29T13:39:19Z")
So it’s working in general. I double checked that all packages are installed. Ubuntu latest in GitHub seems to be 24.04. Do you know if you had to install any additional packages? ---
**Author:** ![Dante](https://forum.openwrt.org/user_avatar/forum.openwrt.org/dante/32/118611_2.png) [@Dante](https://forum.openwrt.org/u/Dante)\ **Post date:** [March 29, 2026, 1:40pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/6 "2026-03-29T13:40:03Z")
Can you post the full log somewhere? ---
**Author:** ![RolandoMagico](https://forum.openwrt.org/user_avatar/forum.openwrt.org/rolandomagico/32/52518_2.png) [@RolandoMagico](https://forum.openwrt.org/u/RolandoMagico)\ **Post date:** [March 29, 2026, 1:55pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/7 "2026-03-29T13:55:25Z")
Do you have access to it? > This is the full log of the runner ---
**Author:** ![slh](https://forum.openwrt.org/user_avatar/forum.openwrt.org/slh/32/113591_2.png) [@slh](https://forum.openwrt.org/u/slh)\ **Post date:** [March 29, 2026, 1:57pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/8 "2026-03-29T13:57:19Z")
We'll never know, unless you build with `-j1 V=s`. ---
**Author:** ![RolandoMagico](https://forum.openwrt.org/user_avatar/forum.openwrt.org/rolandomagico/32/52518_2.png) [@RolandoMagico](https://forum.openwrt.org/u/RolandoMagico)\ **Post date:** [March 29, 2026, 2:00pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/9 "2026-03-29T14:00:41Z")
The pipeline normally runs make -j4 (until line 4249 in the log), but then make V=s if the previous command failed (after line 4249 in the log). ---
**Author:** ![slh](https://forum.openwrt.org/user_avatar/forum.openwrt.org/slh/32/113591_2.png) [@slh](https://forum.openwrt.org/u/slh)\ **Post date:** [March 29, 2026, 2:08pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/10 "2026-03-29T14:08:34Z")
Your original error is: ```plaintext 2026-03-29T12:13:58.2774439Z make[3] -C package/kernel/mt76 compile 2026-03-29T12:13:59.2816698Z ERROR: package/kernel/mt76 failed to build. 2026-03-29T12:14:24.4330828Z 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 ``` Your verbose call doesn't even reach/ attempt mt76. Hint: compiling locally (with `-j1 V=s`) might make things considerably easier. ---
**Author:** ![Dante](https://forum.openwrt.org/user_avatar/forum.openwrt.org/dante/32/118611_2.png) [@Dante](https://forum.openwrt.org/u/Dante)\ **Post date:** [March 29, 2026, 2:09pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/11 "2026-03-29T14:09:42Z")
> [@slh](#): > > Your verbose call doesn't even reach/ attempt mt76. It's there if you look further. ---
**Author:** ![Dante](https://forum.openwrt.org/user_avatar/forum.openwrt.org/dante/32/118611_2.png) [@Dante](https://forum.openwrt.org/u/Dante)\ **Post date:** [March 29, 2026, 2:10pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/12 "2026-03-29T14:10:42Z")
What does your config look like? ---
**Author:** ![RolandoMagico](https://forum.openwrt.org/user_avatar/forum.openwrt.org/rolandomagico/32/52518_2.png) [@RolandoMagico](https://forum.openwrt.org/u/RolandoMagico)\ **Post date:** [March 29, 2026, 2:14pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/13 "2026-03-29T14:14:18Z")
Is the diffconfig sufficient? `CONFIG_TARGET_mediatek=y` `CONFIG_TARGET_mediatek_filogic=y` `CONFIG_TARGET_mediatek_filogic_DEVICE_dlink_aquila-pro-ai-e30-a1=y` `CONFIG_PACKAGE_cgi-io=y` `CONFIG_PACKAGE_libiwinfo=y` `CONFIG_PACKAGE_libiwinfo-data=y` `CONFIG_PACKAGE_liblucihttp=y` `CONFIG_PACKAGE_liblucihttp-ucode=y` `CONFIG_PACKAGE_luci=y` `CONFIG_PACKAGE_luci-app-firewall=y` `CONFIG_PACKAGE_luci-app-package-manager=y` `CONFIG_PACKAGE_luci-base=y` `CONFIG_PACKAGE_luci-lib-uqr=y` `CONFIG_PACKAGE_luci-light=y` `CONFIG_PACKAGE_luci-mod-admin-full=y` `CONFIG_PACKAGE_luci-mod-network=y` `CONFIG_PACKAGE_luci-mod-status=y` `CONFIG_PACKAGE_luci-mod-system=y` `CONFIG_PACKAGE_luci-proto-ipv6=y` `CONFIG_PACKAGE_luci-proto-ppp=y` `CONFIG_PACKAGE_luci-theme-bootstrap=y` `CONFIG_PACKAGE_rpcd=y` `CONFIG_PACKAGE_rpcd-mod-file=y` `CONFIG_PACKAGE_rpcd-mod-iwinfo=y` `CONFIG_PACKAGE_rpcd-mod-luci=y` `CONFIG_PACKAGE_rpcd-mod-rrdns=y` `CONFIG_PACKAGE_rpcd-mod-ucode=y` `CONFIG_PACKAGE_ucode-mod-html=y` `CONFIG_PACKAGE_ucode-mod-log=y` `CONFIG_PACKAGE_ucode-mod-math=y` `CONFIG_PACKAGE_uhttpd=y` `CONFIG_PACKAGE_uhttpd-mod-ubus=y` ---
**Author:** ![RolandoMagico](https://forum.openwrt.org/user_avatar/forum.openwrt.org/rolandomagico/32/52518_2.png) [@RolandoMagico](https://forum.openwrt.org/u/RolandoMagico)\ **Post date:** [March 29, 2026, 5:13pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/14 "2026-03-29T17:13:21Z")
I did a local build with logging everything to a file. The file is about 13MB, so I cannot upload it to GitHub gist. I just pasted the last (722) lines: > Only strange thing I saw until now: | | | --- | | grep: /home/roland/openwrt/E30/build\_dir/target-aarch64\_cortex-a53\_musl/linux-mediatek\_filogic/mac80211-regular/backports-6.18.7/./Module.symvers: No such file or directory | | | ---
**Author:** ![RolandoMagico](https://forum.openwrt.org/user_avatar/forum.openwrt.org/rolandomagico/32/52518_2.png) [@RolandoMagico](https://forum.openwrt.org/u/RolandoMagico)\ **Post date:** [March 31, 2026, 2:33pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/15 "2026-03-31T14:33:20Z")
Maybe related to this issue? > > > \## Summary > The mac80211/backports package builds successfully on kernel 6.18 but… fails to generate Module.symvers, causing all dependent modules (mt76, etc.) to fail with undefined symbol errors. > > \## Environment > \- OpenWrt target: x86\_64 > \- Kernel version: 6.18.2 (testing) > \- Package: kmod-mac80211 (backports-6.18) > \- Working kernel: 6.12.62 > > \## Problem > When building mt76 against kernel 6.18, modpost fails with undefined symbols: > \`\`\` > ERROR: modpost: "ieee80211\_sta\_register\_airtime" \[mt76.ko\] undefined! > ERROR: modpost: "\_\_ieee80211\_schedule\_txq" \[mt76.ko\] undefined! > ERROR: modpost: "ieee80211\_free\_hw" \[mt76.ko\] undefined! > \[... 67+ more undefined symbols\] > \`\`\` > > \## Root Cause > The backports build process fails to invoke modpost for kernel 6.18, resulting in an empty Module.symvers file: > > \*\*Kernel 6.12 (working):\*\* > \`\`\` > $ wc -l build\_dir/.../linux-x86\_64/symvers/mac80211.symvers > 321 mac80211.symvers > \`\`\` > > \*\*Kernel 6.18 (broken):\*\* > \`\`\` > $ wc -l build\_dir/.../linux-x86\_64/symvers/mac80211.symvers > 0 mac80211.symvers > \`\`\` > > Both builds use the same backports-6.18 source tree, but: > \- mac80211.ko is built successfully in both cases > \- Module.symvers is generated only for kernel 6.12 > \- No Module.symvers files exist anywhere in the backports-6.18 build tree for kernel 6.18 > > \## Analysis > The backports build aggregates Module.symvers using: > \`\`\`bash > grep -F \ backports-6.18/./Module.symvers \>\> Module.symvers.tmp > \`\`\` > > However, individual module directories never generate Module.symvers because modpost is not being invoked during the kernel 6.18 build. > > Investigation shows: > \- \`modpost\` binary exists at \`linux-6.18.2/scripts/mod/modpost\` > \- No \`.cmd\` files in backports show modpost being invoked for individual modules > \- The backports Makefile contains no references to modpost/MODPOST > > \## Conclusion > Kernel 6.18 changed the module build system in a way that breaks the backports package's integration with the kernel build process. The backports Makefile or OpenWrt's patches need updating for kernel 6.18 compatibility. > > \## Reproduction > 1. Configure OpenWrt for kernel 6.18 (testing) > 2. Build kmod-mac80211 > 3. Attempt to build kmod-mt76 > 4. Observe undefined symbol errors > 5. Check \`build\_dir/.../linux-x86\_64/symvers/mac80211.symvers\` - it will be empty > > \## Expected Behavior > Module.symvers should be generated during the mac80211 build, containing exported symbols like \`ieee80211\_tx\_status\_ext\`, allowing dependent modules to link successfully. ---
**Author:** ![slh](https://forum.openwrt.org/user_avatar/forum.openwrt.org/slh/32/113591_2.png) [@slh](https://forum.openwrt.org/u/slh)\ **Post date:** [March 31, 2026, 4:14pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/16 "2026-03-31T16:14:55Z")
Just test it locally with the appropriate logging, your suspicion is unlikely (filogic doesn't have kernel v6.18 yet, I successfully built mt76 for kernel v6.12 on filogic, mt7621, ipq806x and for kernel v6.18 on x86\_64). ---
**Author:** ![RolandoMagico](https://forum.openwrt.org/user_avatar/forum.openwrt.org/rolandomagico/32/52518_2.png) [@RolandoMagico](https://forum.openwrt.org/u/RolandoMagico)\ **Post date:** [April 2, 2026, 4:49pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/17 "2026-04-02T16:49:18Z")
Checked the build with the default OpenWrt main repo, it’s working there. I have to check which change in my branch causes the build to fail. Thanks for the support. ---
**Author:** ![system](https://forum.openwrt.org/uploads/default/original/3X/7/4/740520c71f00039bbf001045c682f0ecb25e905a.png) [@system](https://forum.openwrt.org/u/system)\ **Post date:** [April 12, 2026, 4:49pm UTC](https://forum.openwrt.org/t/problem-while-building-mt76-package/248387/18 "2026-04-12T16:49:40Z")
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