- Add option to build without openblas
- Adjust constraints for riscv64

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Add openmpi4 to the list of multibuild flavors (appropriate definitions were already in spec file).

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- don't own /usr/lib/pkgconfig, already owned by filesystem

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* Update to version 3.8.0.
* Drop patches incorporated upstream: arpack-ng-gcc10.patch, arpack-ng-double-comparison.patch.
* New patch: arpack-ng-python-module-installdir.patch to move python module to standard python sitearch.
* Add _constraints to allow enough memory (12 GB) and disk size (3 GB) required to build pyarpack (only for x86_64, aarch64).
* Enable pyarpack for x86_64 and aarch64; disabled for i586 (gh#opencollab/arpack-ng#289).
* Switch to building with cmake.
* Use arpack-ng-%{version} as the naming format for the source tarball.

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Add arpack-ng-double-comparison.patch: Add a tolerance for testing float equivalence in TESTS/bug_79_double_complex.f; fixes build failure for i586 [gh#opencollab/arpack-ng#269].

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Add arpack-ng-gcc10.patch to fix build against GCC 10 [gh#opencollab/arpack-ng#239, gh#opencollab/arpack-ng#245].

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- Update to version 3.7.0:
  * [BUG FIX] ICB: missing workev for *[ds]neupd (real+not-sym) =>
    API/ABI change for *[ds]neupd_c.
  * [BUG FIX] autotools - make distcheck: fix circular dependencies.
  * arpackmm: utility to test arpack with matrix market files.
  * ICB: add ILP64 support.
    - arpack includes arpackdef.h when/where needed:
      - #define provide c_int/a_int according to architecture.
      - all f90 who need to include "arpackdef.h" must be moved to F90.
        Note: by convention, F90 are preprocessed (f90 are not).
    - MPI does not support ILP64: integer*4 must be imposed in all
      calls involving MPI (f90 example/test code).
- Update to version 3.6.3:
  * Add Fortran common initialization (block data).
  * Give up forcing the initial residual to be in the range of the
    operator OP after a restart (Closes: #142).
- Update to version 3.6.2:
  * Install: move headers into a dedicated directory
    (local/include/arpack).  (Closes #126)
  * Add configuration summary.
  * Improve the flag detection. Hopefully fix the ppc64el and other
    archs issues in Debian
- Update to version 3.6.1:
  * Fix a regression on i386 and other archs (Closes #123)
- Update to version 3.6.0:
  * Add support for ISO_C_BINDING (Fortran 2003) for ARPACK,
    PARPACK (Fortran <-> C/C++).
  * Provide find_package for (cmake) users to find arpack-ng.
  * Rename pslamch to pslamch10 to avoid symbol collision with
    Scalapack 2.0.2 in MPI context.
  * Force the initial residual to be in the range of the operator
    OP in the standard case, too (Closes: #79).
  * Add coverage information to improve testing:
    https://coveralls.io/github/opencollab/arpack-ng
  * Add C++11 interface through arpack.hpp and parpack.hpp
  * Rewrite C++ examples / tests demonstrating new C++11 interface
  * Pre-C++11 interface available through arpack.h and parpack.h

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- Create baselibs.conf on the fly, based on flavor.

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- Use _multibuild for building serial and MPI versions, readd
  openmpi(1) for older distribution versions, add openmpi3.
- Reflect MPI flavor in package names
- Stop distributing compiled examples

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- Fix file list from previous change: use /%{ompi_ver}/ as the
  openmpi directory instead of the no longer existing /openmpi/.

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- Replace openmpi(1) by newer openmpi2
- Add explicit dependency to MPI library as multiple ones 
  may provide the same symbols

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- Update to version 3.5.0:
   * Improve cmake build system: disable C++ detection, set
     default build type.
   * Use AC_PROG_FC instead of AC_PROG_F77 for proper
     inizialization for the usage of AC_FC_LINE_LENGTH.
   * Improve cmake build system: add make install and fix shared
     libraries.
   * fix usages of DLACPY to not alias inputs
     (patch from
     https://software.intel.com/en-us/articles/how-to-resolve-arpack-issues-with-intel-mkl-110-update-3)
   * Fix possible deadlock when PARPACK call uses communicator
     with a larger number of CPUs than previous call
   * Portability improvements to the autotools build system.
   * Let cmake guess the default installation directories.  Can be
     overridden by changing CMAKE_INSTALL_LIBDIR and
     CMAKE_INSTALL_BINDIR.
   * Shared libraries built by cmake now have their SONAME set
     identical to those built by autotools.
   * Avoid purification stage in [d,s]neupd.f if it requires
     division by zero (Closes: gh#opencollab/arpack-ng#58).

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