[Bug] Compiling error in keymap.c

[LoyalPotato]

When compiling, it spits out this error:

➜ qmk compile -kb loyalpotato/yggdrasil/rev1 -km LoyalPotato
Ψ Compiling keymap with make --jobs=1 loyalpotato/yggdrasil/rev1:LoyalPotato

QMK Firmware 0.16.8
Making loyalpotato/yggdrasil/rev1 with keymap LoyalPotato

avr-gcc (GCC) 11.2.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiling: keyboards/loyalpotato/yggdrasil/rev1/keymaps/LoyalPotato/keymap.c                       keyboards/loyalpotato/yggdrasil/rev1/keymaps/LoyalPotato/keymap.c:13:24: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'keymaps'
   13 | const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      |                        ^~~~~~~
 [ERRORS]
 | 
 | 
 | 
make[1]: *** [builddefs/common_rules.mk:456: .build/obj_loyalpotato_yggdrasil_rev1_LoyalPotato/keyboards/loyalpotato/yggdrasil/rev1/keymaps/LoyalPotato/keymap.o] Error 1
Make finished with errors
make: *** [Makefile:413: loyalpotato/yggdrasil/rev1:LoyalPotato] Error 1

Describe the Bug

On compile get the error mentioned above and couldn't find any help as to what it could be. Only this and I've deleted the keyboard and run qmk new-keyboard again, but copied the files pertaining to the revision. You can find the files here.

System Information

Keyboard: Yggdrasil (adding support) Revision (if applicable): 1 Operating system: qmk doctor output:

Ψ QMK Doctor is checking your environment.
Ψ CLI version: 1.0.0
Ψ QMK home: /home/loyalpotato/Documents/keyboards/qmk_firmware
Ψ Detected Linux.
Ψ Git branch: master
Ψ Repo version: 0.16.8
Ψ All dependencies are installed.
Ψ Found arm-none-eabi-gcc version 11.2.0
Ψ Found avr-gcc version 8.3.0
Ψ Found avrdude version 6.4
Ψ Found dfu-util version 0.11
Ψ Found dfu-programmer version 0.7.2
Ψ Submodules are up to date.
Ψ QMK is ready to go

Additional Context

[zvecr]

https://github.com/LoyalPotato/qmk_firmware/blob/master/keyboards/loyalpotato/yggdrasil/rev1/rev1.h is wrong.

Each <keyboard>.h will usually contain

#pragma once

#include "quantum.h"

[LoyalPotato]

@zvecr Yeah, based on seeing it everywhere I added and it cleared the error. Can you tell me why I needed to add that?

[zvecr]

Glad its now working!

#pragma once is to tell it to only process the file a single time.

#include "quantum.h" tells it to include a bunch of dependent definitions, one of which is for PROGMEM https://www.nongnu.org/avr-libc/user-manual/pgmspace.html.