Wowlet not compiling in arch/manjaro with 5.10 lts kernel #84

I have not been able to get wowlet to compile on manjaro/arch with a 5.10 lts kernel.

I reported the issue on the AUR.

https://aur.archlinux.org/packages/wowlet-git/

src.c:(.text+0x3e): undefined reference to `pthread_create'
/usr/bin/ld: src.c:(.text+0x4a): undefined reference to `pthread_detach'
/usr/bin/ld: src.c:(.text+0x56): undefined reference to `pthread_cancel'
/usr/bin/ld: src.c:(.text+0x67): undefined reference to `pthread_join'
collect2: error: ld returned 1 exit status

Source file was:
#include <pthread.h>

static void* test_func(void* data) 
{
  return data;
}

int main(void)
{
  pthread_t thread;
  pthread_create(&thread, NULL, test_func, NULL);
  pthread_detach(thread);
  pthread_cancel(thread);
  pthread_join(thread, NULL);
  pthread_atfork(NULL, NULL, NULL);
  pthread_exit(NULL);

  return 0;

I did try the docker method, but, I didn't have much luck there either.

Step 24/53 : RUN mkdir appimagetool &&     cd appimagetool &&     wget https://github.com/AppImage/AppImageKit/releases/download/12/appimagetool-x86_64.AppImage &&     echo "d918b4df547b388ef253f3c9e7f6529ca81a885395c31f619d9aaf7030499a13 appimagetool-x86_64.AppImage" | sha256sum -c &&     chmod +x appimagetool-x86_64.AppImage &&     ./appimagetool-x86_64.AppImage --appimage-extract &&     rm appimagetool-x86_64.AppImage

appimagetool-x86_64.AppImage: OK
/bin/sh: 1: ./appimagetool-x86_64.AppImage: not found
The command '/bin/sh -c mkdir appimagetool &&     cd appimagetool &&     wget https://github.com/AppImage/AppImageKit/releases/download/12/appimagetool-x86_64.AppImage &&     echo "d918b4df547b388ef253f3c9e7f6529ca81a885395c31f619d9aaf7030499a13 appimagetool-x86_64.AppImage" | sha256sum -c &&     chmod +x appimagetool-x86_64.AppImage &&     ./appimagetool-x86_64.AppImage --appimage-extract &&     rm appimagetool-x86_64.AppImage' returned a non-zero code: 127

I would be willing to try a few things to help out, just not sure where to go from here.