Make fails on Ubuntu 22.04.2 with Linux 5.19.0-46 generic

[serpastorg]

Make fails this way in my fresh installed Ubuntu:

make -C /lib/modules/5.19.0-46-generic/build M=/home/sergio/Descargas/rtw88 modules make[1]: se entra en el directorio '/usr/src/linux-headers-5.19.0-46-generic' warning: the compiler differs from the one used to build the kernel The kernel was built by: x86_64-linux-gnu-gcc (Ubuntu 11.3.0-1ubuntu1~22.04.1) 11.3.0 You are using: gcc (Ubuntu 11.3.0-1ubuntu1~22.04.1) 11.3.0 CC [M] /home/sergio/Descargas/rtw88/main.o /home/sergio/Descargas/rtw88/main.c: In function ‘rtw_core_deinit’: /home/sergio/Descargas/rtw88/main.c:2302:9: error: implicit declaration of function ‘timer_delete_sync’ [-Werror=implicit-function-declaration] 2302 | timer_delete_sync(&rtwdev->tx_report.purge_timer); | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors make[2]: *** [scripts/Makefile.build:257: /home/sergio/Descargas/rtw88/main.o] Error 1 make[1]: *** [Makefile:1857: /home/sergio/Descargas/rtw88] Error 2 make[1]: se sale del directorio '/usr/src/linux-headers-5.19.0-46-generic' make: *** [Makefile:117: all] Error 2

Please help me, I need to use my RTL8821 dongle. Thanks a lot

[lwfinger]

I found the problem and pushed a fix. Do a 'git pull', and it should build again.

[serpastorg]

Solved. Thank you very much. I was surprised with your answer. It was soooo soon :)

[RamiroCastillo]

On my computer updated to Ubuntu 22.04 I have a similar problem that indicates the following:

make -C /lib/modules/5.15.0-76-generic/build M=/home/javier/wifi/rtw88 modules
make[1]: Entering directory '/usr/src/linux-headers-5.15.0-76-generic'
warning: the compiler differs from the one used to build the kernel
The kernel was built by: gcc (Ubuntu 11.3.0-1ubuntu1~22.04.1) 11.3.0
You are using: gcc (Homebrew GCC 5.5.0_7) 5.5.0
CC [M] /home/javier/wifi/rtw88/main.o
gcc: error: unrecognized command line option '-mfunction-return=thunk-extern'
gcc: error: unrecognized command line option '-mharden-sls=all'
make[2]: *** [scripts/Makefile.build:297: /home/javier/wifi/rtw88/main.o] Error 1
make[1]: *** [Makefile:1914: /home/javier/wifi/rtw88] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-5.15.0-76-generic'
make: *** [Makefile:117: all] Error 2

Please could you help me I need to install rtl8723de module

[lwfinger]

Your gcc with version 5.5.0 is too old. You need version 11.3.0 from Ubuntu as that is the compiler used to build the kernel.