[petsc-dev] PETSc always recompiles mpi4py petsc4py even when it does not have too

[Barry Smith]

  I change a single PETSc file and do make all that single file gets compiled but all of mpi4py and petsc4py get recompiled even though I have not changed any thing to affect them. No include files for example


*** Building mpi4py ***
*** Installing mpi4py ***
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To use mpi4py, add /Users/barrysmith/Src/petsc/arch-cleanup-dmd-domaindecomposition/lib to PYTHONPATH
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*** Building petsc4py ***

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