# PetscSysFinalizePackage
This function destroys everything in the PETSc created internally in the system library portion of PETSc. It is called from `PetscFinalize()`. 
## Synopsis
```
PetscErrorCode PetscSysFinalizePackage(void)
```



## See Also
 `PetscFinalize()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/sys/classes/viewer/interface/dlregispetsc.c.html#PetscSysFinalizePackage">src/sys/classes/viewer/interface/dlregispetsc.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/sys/classes/viewer/interface/dlregispetsc.c)


[Index of all Viewer routines](index.md)  
[Table of Contents for all manual pages](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
