hmm 🤔 In general pkgbuild is here https://github.com/nemo-packaging/libdsme-git/blob/master/PKGBUILD and the building looks fine, here's the results:
```
file /usr/lib/libdsme.so
/usr/lib/libdsme.so: symbolic link to libdsme.so.0
file /usr/lib/libdsme.so.0
/usr/lib/libdsme.so.0: symbolic link to libdsme.so.0.3.0
file /usr/lib/libdsme.so.0.3.0 
/usr/lib/libdsme.so.0.3.0: ELF 64-bit LSB shared object, ....
```

but your patch looks reasonable for me 👍️ will look into the details