New issue by negrel on void-packages repository

https://github.com/void-linux/void-packages/issues/36004

Description:
### System

* squashfs-tools  
  *Void 5.13.0-30-generic x86_64 GenuineIntel notuptodate rF* (docker container)
* package:
  *squashfs-tools-4.5_2*

### Expected behavior
`mksquashfs` should not segfault.

### Actual behavior
`mksquashfs` segfault with the following message when using in buildah container:
```
libgcc_s.so.1 must be installed for pthread_cancel to work
container exited on segmentation fault
error while running runtime: exit status 1
```

### Steps to reproduce the behavior
Use mksquashfs on any system without `base` package installed, the docker image for example:
```
docker run --rm voidlinux/voidlinux sh -c "xbps-install -Syu squashfs-tools && mksquashfs / /rootfs.sqsh -e dev proc run sys boot"
x86_64-repodata: [1729KB 0%] 54MB/s ETA: 00m00s
x86_64-repodata: 1729KB [avg rate: 23GB/s]
2 packages will be downloaded:

2 packages will be installed:

  lzo-2.10_2 
  squashfs-tools-4.5_2 

Size to download:              211KB
Size required on disk:         533KB
Space available on disk:       145GB


[*] Downloading packages
lzo-2.10_2.x86_64.xbps.sig: [512B 100%] 9615KB/s ETA: 00m00s
lzo-2.10_2.x86_64.xbps.sig: 512B [avg rate: 9615KB/s]
lzo-2.10_2.x86_64.xbps: [40KB 9%] 29MB/s ETA: 00m00s
lzo-2.10_2.x86_64.xbps: 40KB [avg rate: 294MB/s]
lzo-2.10_2: verifying RSA signature...
squashfs-tools-4.5_2.x86_64.xbps.sig: [512B 100%] -- stalled -- ETA: 00m00s
squashfs-tools-4.5_2.x86_64.xbps.sig: 512B [avg rate: -- stalled --]
squashfs-tools-4.5_2.x86_64.xbps: [170KB 2%] -- stalled -- ETA: 00m00s
squashfs-tools-4.5_2.x86_64.xbps: 170KB [avg rate: -- stalled --]
squashfs-tools-4.5_2: verifying RSA signature...

[*] Collecting package files
lzo-2.10_2: collecting files...
squashfs-tools-4.5_2: collecting files...

[*] Unpacking packages
lzo-2.10_2: unpacking ...
squashfs-tools-4.5_2: unpacking ...

[*] Configuring unpacked packages
lzo-2.10_2: configuring ...
lzo-2.10_2: installed successfully.
squashfs-tools-4.5_2: configuring ...
squashfs-tools-4.5_2: installed successfully.

2 downloaded, 2 installed, 0 updated, 2 configured, 0 removed.
libgcc_s.so.1 must be installed for pthread_cancel to work
Aborted (core dumped)
```