Dear PETSc users, The patch release petsc-3.7.6 is now available for download. http://www.mcs.anl.gov/petsc/download/index.html * configure: fix failure with Xcode 8.3 on OSX. * fortran: add TaoType and TaoLineSearchType definitions. * sys: PetscError() did not properly copy over the specific error message when error type was PETSC_ERROR_INITIAL * YAML: produce error when YAML calls fail. * pkg-config: improve support - exclude rpath flags from PETSc.pc, remove separate specification of blaslapacklibs, add variable cflags_dep, write more complete flags, fix Libs field for single-library=0. * metis: use update that supports MATH_LIB option - this way -lm doesn't get linked in automatically [when built with intel compilers] * mkl: do not explicitly use '-lm' - and prefer self.libraries.math - as this would presumably prefer -limf over -lm [via compiler default libraries] * Update petsc_conf.py so it works with Python3 * fortran: enable interface to MatCompositeMerge() * DMDA: fix bounds checking for indices j and k in DMDAGetCellPoint() * PetscLog: PetscStageLogGetStage() returned wrong id, not -1, if requested item was not found * MATIS: fix a couple of bugs * TS: If user provides TSSetIFunction() the TSSolve() should error out if explicit method is used * Mat: bugfix for '-mat_view' when matvalue array = null * Sys: Options file processing: don't allow directories to be passed * fieldsplit: Extract the submatrices from the preconditioning matrix instead of the Jacobian matrix * TS: setup SNES matrices only if needed * MatAIJ: perform missing diagonal check only in debug mode. * Mat: increase table input size to (A->cmap->n + a->B->cmap->N) for MatTransposeMatMultSymbolic_MPIAIJ_MPIAIJ() * Mat: fix nonscalable input using ctable for matrix products * ctable: support tablesize up to 26843545600l for 64-bit-indices * MatNestFindSubMat: Workaround for single block-column Satish