sudo eopkg it -c system.devel, just install the basic development tools, it's likely missing something in there.

    Justin
    Thanks for taking the time to reply - will give it a shot. All the best Alex

      14 days later

      Hi I have the same problem but even by installing the dev tools it doesn’t work:/

      make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.20.16-112.current/build M=/home/shinryu/rtl8821ce modules
      make[1]: *** /lib/modules/4.20.16-112.current/build : Aucun fichier ou dossier de ce type. Arrêt.
      make: *** [Makefile:1902: modules] Error 2

      I'm sorry, i'm french and very bad english

      Looks like it might need the kernel headers. Try installing linux-current-headers.

      Simply change sudo make all to just make.

      Thanks , it work, problem is solved 😉

      Just for future reference: I've been using the driver over at https://github.com/endlessm/linux/tree/master/drivers/net/wireless/rtl8821ce, and it has been working fine for me. One just has to edit the line of the makefile:

      export TopDIR ?= $(srctree)/drivers/net/wireless/rtl8821ce

      to an appropriate path, then make the makefile. If anyone knows of advantages or disadvantages with either driver, it would be nice to know.

      2 years later

      Also for future reference, if you just had a fresh install, remember to reboot after installing the packages described above, THEN run the make file.

      a month later

      First of all, thank you all for this thread, I followed this advice and it worked perfectly... until I restarted my computer, and now I'm back to "no wifi adapter detected". Has this happened to anyone else?

        mintaka You might have just experienced a kernel update without realizing it. Reinstall the driver following the advice and then reboot again, see if it will disappear.