a.rb

$ ./configure --with-debugging=0 --with-shared-libraries=1 --prefix=/usr/local/Cellar/petsc/3.4.3/arch-darwin-c-opt
===============================================================================
             Configuring PETSc to compile on your system
===============================================================================
===============================================================================                                                                                                                                                                                           WARNING! Compiling PETSc with no debugging, this should                                                                                                                                                                                                         only be done for timing and production runs. All development should                                                                                                                                                                                       be done when configured using --with-debugging=1                                                                                                                                                                                    ===============================================================================                                                                                                                                                                           TESTING: alternateConfigureLibrary from PETSc.packages.mpi4py(config/PETSc/packages/mpi4py.py:49)                                                                                                                                                         Compilers:
  C Compiler:         mpicc  -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -O
  C++ Compiler:       mpicxx  -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -O   -fPIC
  Fortran Compiler:   mpif90  -fPIC -Wall -Wno-unused-variable -Wno-unused-dummy-argument -O
Linkers:
  Shared linker:   mpicc  -dynamiclib -single_module -undefined dynamic_lookup -multiply_defined suppress  -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -O
  Dynamic linker:   mpicc  -dynamiclib -single_module -undefined dynamic_lookup -multiply_defined suppress  -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -O
BLAS/LAPACK: -llapack -lblas
MPI:
  Includes: -I/usr/local/Cellar/open-mpi/1.7.3/include
X:
  Includes: -I/opt/X11/include
  Library:  -L/opt/X11/lib -lX11
cmake:
  Arch:
pthread:
  Library:  -lpthread
valgrind:
PETSc:
  PETSC_ARCH: arch-darwin-c-opt
  PETSC_DIR: /private/tmp/petsc-3.4.3
  Clanguage: C
  Scalar type: real
  Precision: double
  Memory alignment: 16
  shared libraries: enabled
  dynamic loading: disabled
xxx=========================================================================xxx
 Configure stage complete. Now build PETSc libraries with (cmake build):
   make PETSC_DIR=/private/tmp/petsc-3.4.3 PETSC_ARCH=arch-darwin-c-opt all
 or (experimental with python):
   PETSC_DIR=/private/tmp/petsc-3.4.3 PETSC_ARCH=arch-darwin-c-opt ./config/builder.py
xxx=========================================================================xxx