F31: kernel 5.8.8 build fails for Bumblebee about bbswitch

[gsgatlin]

I think you are running into this perhaps

#196

So this patch should work around it or you could use the upstream version.

https://pastebin.com/2D4ewzC2

So I guess you need to ask the person whop built this for fedora to add that patch to it or git clone the newest version.

[Ambrevar]

Same error (in English) with Linux 5.8.11:

make: Entering directory '/gnu/store/jghf3pd73jpdf6balqgjllaqccvh4rpz-linux-libre-module-builder-5.8.11/lib/modules/build'
  AR      /tmp/guix-build-bbswitch-module-0.8.drv-0/source/built-in.a
  CC [M]  /tmp/guix-build-bbswitch-module-0.8.drv-0/source/bbswitch.o
/tmp/guix-build-bbswitch-module-0.8.drv-0/source/bbswitch.c: In function 'bbswitch_init':
/tmp/guix-build-bbswitch-module-0.8.drv-0/source/bbswitch.c:460:18: error: implicit declaration of function 'proc_create'; did you mean 'vfs_create'? [-Werror=implicit-function-declaration]
     acpi_entry = proc_create("bbswitch", 0664, acpi_root_dir, &bbswitch_fops);
                  ^~~~~~~~~~~
                  vfs_create
/tmp/guix-build-bbswitch-module-0.8.drv-0/source/bbswitch.c:460:16: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     acpi_entry = proc_create("bbswitch", 0664, acpi_root_dir, &bbswitch_fops);
                ^
/tmp/guix-build-bbswitch-module-0.8.drv-0/source/bbswitch.c: In function 'bbswitch_exit':
/tmp/guix-build-bbswitch-module-0.8.drv-0/source/bbswitch.c:490:5: error: implicit declaration of function 'remove_proc_entry'; did you mean 'remove_memory'? [-Werror=implicit-function-declaration]
     remove_proc_entry("bbswitch", acpi_root_dir);
     ^~~~~~~~~~~~~~~~~
     remove_memory
cc1: some warnings being treated as errors
make[1]: *** [scripts/Makefile.build:281: /tmp/guix-build-bbswitch-module-0.8.drv-0/source/bbswitch.o] Error 1
make: *** [Makefile:1752: /tmp/guix-build-bbswitch-module-0.8.drv-0/source] Error 2

[Ambrevar]

It works indeed, thanks! I've updated the Guix package to follow the "develop" branch, it works now.