- update to version 7.7.0
  * Details on
    https://www.opencascade.com/open-cascade-technology-7-7-0-maintenance-release/
  * General
    + Improved compatibility with C++17/C++20 compilers
    + Dropped support of pre-C++11 compilers
  * Modeling
    + New functionality is implemented, which could verify the
      input shape to be placed on a canonical geometry with the
      given tolerance.
    + Introduced new tool BRepLib_PointCloudShape generating a
      point set for a topological shape.
    + New option in BRepOffsetAPI_MakeOffset - approximation of
      input contours by ones consisting of 2D circular arcs and
      2D linear segments only, it provides more stable work of
      2D offset algorithm.
  * Visualization
    + Introduced new interface for creating V3d_View as subviews
      of another V3d_View.
    + Added smoothing to row interlaced stereoscopic output.
    + Added word-wrapping option to Font_TextFormatter.
    + Added support of a wide color window buffer format (10bit
      per component / 30bit RGB).
    + Added MSAA anti-aliasing support when using WebGL 2.0.
    + Introduced skydome generation feature
      3d_View::BackgroundSkydome().
  * Mesh
    + BRepMesh works too long and produces many free nodes on a
      valid face problems are resolved.
    + Meshing the shape no longer takes too long and visualization
      problems are corrected.
    + Wrong shading display of thrusections is fixed.
    + Rendering issue when using deviation coefficient of low
      value is resolved.
    + Mesher no longer produce 'bad' result for extruded spline
      with given deviation coefficient.
    + Holes in triangulation with large linear deflection are
      removed.
    + Broken triangulation on pipe shape is fixed.
  * Data Exchange
    + STEP translator now supports tessellated presentations.
    + Transformation tools BRepBuilderAPI_Transform/
      BRepBuilderAPI_Copy now handle properly tessellated
      presentations.
    + glTF Writer - added support of Draco compression.
    + Introduced DEWrapper - a unified interface to Data
      Exchange connectors.
    + Introduced tool XCAFDoc_Editor::RescaleGeometry() for
      scaling geometry in XCAF document.
  * Configuration
    + SONAME is now configurable in CMake and includes minor
      version in addition to major by default
  * Documentation
    + Improved samples / tutorials documentation.
    + Introduced new “AIS: Custom Presentation” tutorial.
- Drop upstream patches:
  * fix_soversion_minor.patch
  + fix_build.patch
- Add fix_missing_limits_header.patch
- Library package was split up to avoid pulling in unnecessary
  indirect dependencies.

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