fix mixed declaration and code

Fix a bunch of PetscValidPointer() -> PetscValidXXXPointer()

When constructing a PCKSP, pass the DM from the parent PC to the child KSP.

Deprecate PetscSFGetRanks with new PetscSFGetRootRanks

Since we have PetscSFGetLeafRanks, it is better to have a similar name.

fix 64 bit int

forbid rewritig PCTELESCOPE on the bottom lvl

swap sprintf PetscSNPritnf

fix possible mem issues

fix passing PetscInt to MPI functions

fix not PetscBool in defl space computation

Merged in barry/cleanup-petscconf-h (pull request #1834)

Remove testing and inserting into petscconf.h items that are not actually used by PETSc

Merged in barry/10-7-2019/fix-prefix-null-error-message (pull request #1859)

Remove erroneous null from error messages

Merge branch 'gropp/doc-fixes-1' [PR #1838]

Another source file called triangulate() hence needed ANSI_DECLARATORS

Triangle can only be used by PETSc with double because it takes a double array as input

Commit-type: bug-fix, portability-fix

Another source file called triangulate() hence needed ANSI_DECLARATORS

Triangle can only be used by PETSc with double because it takes a double array as input

Commit-type: bug-fix, portability-fix
Reported-by: nightly tests

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Remove erroneous null from error messages

Commit-type: bug-fix, style-fix

Merge branch 'barry/no-batch-script'

change IGNORE to NO_OFF_PROC_ENTRIES

change prefix from def to deflation

fix doc

remove SetPC SetCoarseKSP

align variables in declarations

minor code improvement

change SetMaxLvls to SetLevels

clean up

fix fortran