With this change, builds on ARM64 hosts will successfully kick off!
Unfortunately there are still missing/outdated dependencies, so the build doesn't yet succeed. This makes it much easier to check what we're failing on though.
* Add runtime display backend detection for Wayland support
Add LinuxDisplayBackend utility to detect X11 vs Wayland at runtime
using GDK_IS_X11_DISPLAY / GDK_IS_WAYLAND_DISPLAY macros. This is
the foundation for removing the forced GDK_BACKEND=x11 and enabling
native Wayland support.
- New files: LinuxDisplayBackend.hpp/.cpp with get_linux_display_backend(),
is_running_on_wayland(), and is_running_on_x11()
- Propagate wxHAVE_GDK_X11 / wxHAVE_GDK_WAYLAND from FindGTK3.cmake
as compile definitions to libslic3r_gui
- No-op on non-Linux platforms (returns Unknown / false)
* Fix Phase 1 code quality: pragma once, source ordering, static cache
* Make X11 initialization conditional for Wayland support
Remove the unconditional GDK_BACKEND=x11 force that blocked native
Wayland. Replace with conditional logic:
- EGL safety fallback: re-force X11 only when wxUSE_GLCANVAS_EGL is
off and WAYLAND_DISPLAY is set, with a warning log
- XInitThreads() only called when DISPLAY is set (X11 in use)
- __GLX_VENDOR_LIBRARY_NAME only set when DISPLAY is present (GLX-specific)
- WEBKIT_DISABLE_COMPOSITING_MODE only set under XWayland (both
DISPLAY and WAYLAND_DISPLAY present)
- Guard X11/Xlib.h include with __has_include for robustness
- Restore display validation to accept either DISPLAY or WAYLAND_DISPLAY
This is Phase 2 of the Wayland support plan.
* Fix Phase 2: safer EGL macro check, add clarifying comments
* Add GLAD2 library and replace GLEW linkage in build system
Set up GLAD2 as a static library to replace GLEW for OpenGL loading.
GLAD2 supports both GLX and EGL, which is required for Wayland support.
- Create src/glad/ with pre-generated GLAD2 sources (GL 4.6 compat)
- Add src/glad/CMakeLists.txt building glad as a static library
- Wire glad into src/CMakeLists.txt before libvgcode
- Modify libvgcode to use shared glad for GL path (keeps local copy
only for GLES2/Emscripten) to avoid duplicate symbol conflicts
- Replace GLEW::GLEW with glad in libslic3r_gui link libraries
Note: GLEW is kept in deps for OpenCSG. Code migration from GL/glew.h
to glad/gl.h headers will follow in Phase 3B+3C.
* Fix Phase 3A+3D: libvgcode GLAD include, dead files, dlopen dep, OpenGL link var
* Migrate from GLEW to GLAD: replace headers and API calls across codebase
Replace all #include <GL/glew.h> with <glad/gl.h> across 49 source files.
Migrate GLEW API calls to GLAD equivalents:
- glewInit/glewExperimental -> gladLoaderLoadGL()
- GLEW_EXT_* / GLEW_ARB_* extension checks -> GLAD_GL_EXT_* / GLAD_GL_ARB_*
- Remove GLEW-specific EGL/GLX mismatch #error guards (not needed with GLAD)
- Replace unavailable EXT symbols with core GL equivalents in
GLCanvas3D.cpp (GL_MAX_SAMPLES, glRenderbufferStorageMultisample,
glBlitFramebuffer, GL_READ/DRAW_FRAMEBUFFER)
- Update log messages from glewInit to gladLoadGL
* Fix Phase 3B+3C: remove GLEW find, clean EXT symbols, update attribution
- Remove find_package(GLEW) block from root CMakeLists.txt since GLEW
is no longer linked by any main application code
- Remove "glew" from SLIC3R_STATIC option description
- Replace all remaining EXT framebuffer symbols with core equivalents
in render_thumbnail_framebuffer_ext and _rectangular_selection_picking_pass
- Update AboutDialog credits from GLEW to GLAD
* Enable EGL in wxWidgets and add runtime GLX/EGL selection for Wayland
- Set wxUSE_GLCANVAS_EGL=ON in wxWidgets build and Flatpak manifest
- Add PreferGLX() call on X11 sessions for driver compatibility
- Remove Phase 2 safety fallback (EGL is now always compiled in)
- Guard SwapBuffers against hidden canvases to prevent Wayland stalls
* Fix Phase 4: move PreferGLX to app startup, fix FPS counter guard
Move wxGLCanvas::PreferGLX() from OpenGLManager::create_wxglcanvas()
(static initializer) to GUI_App::on_init_inner() before any wxGLCanvas
is constructed. This prevents a race where SkipPartCanvas could trigger
wxGLBackend::Init() before the GLX preference is set. The new location
also adds explicit is_running_on_wayland() detection with a warning for
unknown backends.
Move increment_fps_counter() inside the IsShownOnScreen() guard so FPS
is only counted when a frame is actually swapped.
* Update GLFW from 3.3.7 to 3.4 for runtime Wayland/X11 backend selection
Replace the compile-time GLFW_USE_WAYLAND flag (which locked to a single
backend) with GLFW 3.4's GLFW_BUILD_WAYLAND + GLFW_BUILD_X11 flags that
build both backends and auto-select at runtime based on the available
display server. This enables the CLI thumbnail renderer to work on both
Wayland and X11 sessions without separate builds.
* wayland: Fix UI call sites that rely on global screen coordinates
On Wayland, wxGetMousePosition() returns (0,0) and SetPosition() is a
no-op for top-level windows. Fix the highest-impact call sites:
- GLCanvas3D: Use cached m_mouse.position from event handlers instead
of wxGetMousePosition() + ScreenToClient() in get_local_mouse_position()
- Plater: Use event-relative coords via ClientToScreen(e.GetPosition())
instead of wxGetMousePosition() in 3 leave-window handlers
- BBLTopbar: Use event.GetPosition() and FindToolByPosition() directly
in mouse handlers instead of wxGetMousePosition()/FindToolByCurrentPosition()
- Search: Use focus-based dismiss logic on Wayland instead of
wxGetMousePosition()-based rect checks in SearchDialog and
SearchObjectDialog
- GUI_App: Skip SetPosition() in window_pos_restore() on Wayland where
it is a no-op; still restore size and maximize state
- Button: Position tooltip relative to button widget via ClientToScreen
instead of wxGetMousePosition()
* Fix SearchDialog Wayland dismiss: guard against search_line focus
* flatpak: Add Wayland socket permission for native Wayland support
* spec
* Fix crash on Wayland when wxWidgets lacks EGL support
Restore the safety fallback that forces GDK_BACKEND=x11 when wxWidgets
was not built with wxUSE_GLCANVAS_EGL=ON. Without this, the GLX backend
tries to access a non-existent X11 display on native Wayland, crashing
in wxGLCanvas::IsDisplaySupported() with SIGSEGV at offset 0xe4.
Also add a defense-in-depth guard in detect_multisample() that skips
the IsDisplaySupported call entirely on Wayland without EGL.
Root cause: deps/wxWidgets must be rebuilt after enabling EGL. The
compile-time check in OrcaSlicer.cpp detects the mismatch and falls
back safely.
* Fix EGL detection: use wxHAS_EGL instead of wxUSE_GLCANVAS_EGL
wxUSE_GLCANVAS_EGL is a CMake build option, NOT a C++ preprocessor
macro. The actual macro defined in wxWidgets setup.h is wxHAS_EGL.
All compile-time EGL checks were using the wrong macro, causing
the safety fallback to always trigger even with a properly built
EGL-enabled wxWidgets.
* Fix GL function pointers invalidated on Wayland/EGL
gladLoaderLoadGL() dlopen's libGL.so.1 to resolve GL function pointers
via dlsym, then immediately dlclose's the handle. On X11/GLX this is
fine because the GLX context keeps libGL.so mapped. On Wayland/EGL,
nothing else holds libGL.so open, so dlclose unmaps it and all function
pointers become dangling — causing SIGSEGV on the first GL call.
Fix: on Wayland, use gladLoadGL(eglGetProcAddress) which resolves
function pointers through the EGL loader without opening/closing
libGL.so.
* fix crash on start and various rendering issues
* fix crash on close
* small refactor
* move GPU selection to desktop file
* clean up a bit
* clean up more
* fix appimage error
- add a new mode to build in docker
- Improve AppImage
1. fix libbz2 soname differeence issue on appimage
2. Downgrade to 22.04 for better compatibility
3. improve appimage overall
* Fix GIT_COMMIT_HASH not set in Flatpak builds
The env var check was gated inside the .git directory check, so
Flatpak builds (which exclude .git from the sandbox) always fell
back to "0000000". Lift the env var check to top level and inject
the commit hash into the Flatpak manifest via build-options.env.
* Switch Flatpak build to Clang/LLD via LLVM 21 SDK extension
- Add org.freedesktop.Sdk.Extension.llvm21
- Bump runtime to GNOME 49 (SDK 25.08) for llvm21 availability
* fix build errors and improving build speed for flatpak
* fxi more build errors
* Update error messages for GNOME Platform and SDK versions
The env var check was gated inside the .git directory check, so
Flatpak builds (which exclude .git from the sandbox) always fell
back to "0000000". Lift the env var check to top level and inject
the commit hash into the Flatpak manifest via build-options.env.
Update default Windows SDK include path version
Changed the default Windows SDK include path from version 10.0.22000.0 to 10.0.26100.0 in CMakeLists.txt to use a newer SDK version when environment variables are not set.
* Get libslic3r tests closer to passing
I can't get geometry tests to do anything useful. I've added extra
output, but it hasn't helped me figure out why they don't work
yet. That's also probably the last broken 3mf test doesn't work.
The config tests were mostly broken because of config name changes.
The placeholder_parser tests have some things that may-or-may-not
still apply to Orca.
* Vendor a 3.x version of Catch2
Everything is surely broken at this point.
* Allow building tests separately from Orca with build_linux.sh
* Remove unnecessary log message screwing up ctest
Same solution as Prusaslicer
* Make 2 TriangleMesh methods const
Since they can be.
* Move method comment to the header where it belongsc
* Add indirectly-included header directly
Transform3d IIRC
* libslic3r tests converted to Catch2 v3
Still has 3 failing tests, but builds and runs.
* Disable 2D convex hull test and comment what I've learned
Not sure the best way to solve this yet.
* Add diff compare method for DynamicConfig
Help the unit test report errors better.
* Perl no longer used, remove comment line
* Clang-format Config.?pp
So difficult to work with ATM
* Remove cpp17 unit tests
Who gives a shit
* Don't need explicit "example" test
We have lots of tests to serve as examples.
* Leave breadcrumb to enable sla_print tests
* Fix serialization of DynamicConfig
Add comments to test, because these code paths might not be even used
anymore.
* Update run_unit_tests to run all the tests
By the time I'm done with the PR all tests will either excluded by
default or passing, so just do all.
* Update how-to-test now that build_linux.sh builds tests separately
* Update cmake regenerate instructions
Read this online; hopefully works.
* Enable slic3rutils test with Catch2 v3
* Port libnest2d and fff_print to Catch2 v3
They build. Many failing.
* Add slightly more info to Objects not fit on bed exception
* Disable failing fff_print tests from running
They're mostly failing for "objects don't fit on bed" for an
infinite-sized bed. Given infinite bed is probably only used in tests,
it probably was incidentally broken long ago.
* Must checkout tests directory in GH Actions
So we get the test data
* Missed a failing fff_print test
* Disable (most/all) broken libnest2d tests
Trying all, not checking yet though
* Fix Polygon convex/concave detection tests
Document the implementation too. Reorganize the tests to be cleaner.
* Update the test script to run tests in parallel
* Get sla_print tests to build
Probably not passing
* Don't cause full project rebuild when updating test CMakeLists.txts
* Revert "Clang-format Config.?pp"
This reverts commit 771e4c0ad2.
---------
Co-authored-by: SoftFever <softfeverever@gmail.com>
* Actually build tests on Linux and allow RelWithDebInfo
They weren't being built.
Also cleaned up --config flags which enables RelWithDebInfo on Linux,
now that Ninja Multi-Config is used, it's quite trivial.
* Remove obsolete Slic3r Perl tests
The directory doesn't exist, they're already gone.
* Add GH job for running unit tests
* Move unit test execution to script and upload test results
* Don't run scheduled builds on forks
* Only deploy from SoftFever/OrcaSlicer
Will stop failures on forks
* Use artifact instead of cache
* Tweak archive and checkout paths
Keep getting error:
```
/home/runner/work/_temp/902d0a0a-6d23-4fe0-a643-8b5cc4efd25b.sh: line 1: scripts/run_unit_tests.sh: Permission denied
```
That seems to be because I didn't use actions/checkout, the working
directory is never setup correctly? So using checkout to get scripts
directory. Unsure if archive will preserve the `build/tests/` prefix;
will find out soon.
* Use tar to package directory and write results to correct directory
Tar preserves filenames and directory structure
* Use tar -xvf not -xzf
Muscle memory failed me
* Add testing wiki page
* Save test logs on failure and choose correct directory for junit
* Consolidate apt install steps, use for unit tests too, disable non-Linux builds
Temporarily disable non-Linux builds to save time while developing
this.
Cache the apt packages to save some time searching apt and downloading
them again (though I realize this is also downloading, but hopefully
by something closer and faster).
Remove all the redundant packages listed in the workflow and debian
distribution lists.
* Remove apt install steps from workflow
`./build-linux.sh -u` is supposed to install all needed packages, so
it should build without needing anything besides that. If I'm wrong
this commit will be dropped.
* Need composite action checked out locally
* Re-enable non-Linux builds now that it's working
* Skip a deploy and a notarize in forks
They only succeed in the main repo.
* Fix multi-build for non-Release builds: share CONFIG
* Correct build errors in unit tests
Indeterminate method signatures resolved. Updated script to build all
the tests.
* Fix -g vs -e for RelWithDebInfo
* Change CONFIG->BUILD_CONFIG
Missed one in prior commits
* Reduce wasteful redundant build artifact copies
1. Don't copy the artifacts and leave them; make a hard link first;
only make a copy only while creating AppImage.
2. Don't tar up the `package` directory; nothing uses this tar AFAICT
* Fix directory name
* Change jigsaw auth test URLs to httpbin.org
No idea why the basic auth doesn't work, but it doesn't work for
`curl` CLI either. This does.
* Remove force-build
It got reverted at
e3f049829b
for unknown reasons.
* Add timeout for unit tests in GitHub Actions workflow (#11146)
---------
Co-authored-by: SoftFever <softfeverever@gmail.com>
* Auto generate CMAKE_PREFIX_PATH/DESTDIR
* Auto set CMAKE_INSTALL_PREFIX
* Always default SLIC3R_STATIC to on
* Only allow one value for CMAKE_OSX_ARCHITECTURES
* Set arch for OpenSSL from CMAKE_OSX_ARCHITECTURES
* Set CMAKE_INSTALL_RPATH from CMAKE_PREFIX_PATH
* Default CMAKE_MACOSX_RPATH and CMAKE_MACOSX_BUNDLE to on
* Auto set BBL_RELEASE_TO_PUBLIC based on build config
* Default to GTK 3
* Fix linux debug build
Update find modules to also look for the debug variant of the libraries
* Set DEP_DEBUG and ORCA_INCLUDE_DEBUG_INFO based on CMAKE_BUILD_TYPE
* Add a fallback value for Windows SDK if the env variables are not set
* Reflect CMake changes in the build scripts
* Add missing line
* Fix auto setting DEP_DEBUG and ORCA_INCLUDE_DEBUG_INFO
* Update dep folder name for linux in GH actions
* Invert dep-folder-name conditions
`''` is considered a falsy value, which was causing the value to always be set to 'OrcaSlicer_dep'
* Properly handle finding the debug version of libnoise
* Convert FindNLopt.cmake to a config mode wrapper
* Use separate build directory for debug builds on Linux
* Move find_package for libnoise
* Cleanup and improve linux build script
- Add dry run
- Add build in RelWithDebInfo
- Add function to print and run commands
* Remove linux destdir deprecation and cleanup
* Fix flatpak build
* Disable fail fast for flatpak builds
* Flatpak improvements
- Build wxWidgets using deps cmake
- Improve handling of space freeing commands while building deps
- Allow cmake to directly download deps
- Set needed flags within cmake instead of the build manifest
* Print clean build commands
* Implement shellcheck recommendations
* Cleanup
* Fix CMakeLists.txt syntax by replacing empty elseif with else statement
---------
Co-authored-by: SoftFever <softfeverever@gmail.com>
Move many third-party components' source codes from the src folder to a new folder called deps_src. The goal is to make the code structure clearer and easier to navigate.
* Revert 98be94a729
We carry a wxgtk patch [1] that detects dark theme automatically. If it
doesn't work, it means that either selected Gtk theme is not installed
in flatpak environment, or appropriate xdg-desktop-portal for the DE is not
installed.
Plasma users may need to install org.gtk.Gtk3theme.Adapta
Also see https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.Settings.html
[1] 0001-Enable-using-a-dark-theme-when-Gnome-dark-style-is-s.patch
* flatpak: introduce ORCA_SLICER_DARK_THEME to force dark theme
If ORCA_SLICER_DARK_THEME is set, dark theme will be applied regardless
of system settings.
* FIX: occt build failure
Pick up build error fix from upstream:
7236e83dcc
/run/build/BambuStudio/deps/build/dep_OCCT-prefix/src/dep_OCCT/src/StdPrs/StdPrs_BRepFont.cxx: In member function ‘Standard_Boolean StdPrs_BRepFont::renderGlyph(Standard_Utf32Char, TopoDS_Shape&)’:
/run/build/BambuStudio/deps/build/dep_OCCT-prefix/src/dep_OCCT/src/StdPrs/StdPrs_BRepFont.cxx:465:30: error: invalid conversion from ‘unsigned char*’ to ‘const char*’ [-fpermissive]
465 | const char* aTags = &anOutline->tags[aStartIndex];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| unsigned char*
* Set policy CMP0167 to NEW
Newer cmake switched to using BoostConfig.cmake shipped with boost-1.70
or later for detecting boost, to preserve old behavior policy CMP0167
was introduced.
Set it to "NEW" to indicate that we want to use .cmake shipped with
boost
* Add OpenSSL tarball link to the manifest
* Add curl zip to the manifest
* flatpak: bump runtime version to 47
Gnome 47 has been released a while ago
---------
Co-authored-by: Bastien Nocera <hadess@hadess.net>
* fixes and refactors linux build scripts
- build_linux.sh: fixes wrong AppImage build folder; refactors script; enhances help text
- harmonizes names: BuildLinux.sh and BuildLinuxImage.sh
- fixes file permissions: cmake inherits .in-file permission; removes chmod 755 in scripts
- linux.d/debian: removes false positive error message
- updates documentation
* enables ANSI-colored output for GNU or Clang
* build_linux.sh: adds -p flag to disable PCH for boosting ccache hit rate
* Allow compilation on distributions based on Ubuntu/Debian (#8625)
* build_linux.sh: takes over changes from BuildLinux.sh
* CMakeLists.txt: removes leftovers, enables ANSI-colored output
* CMakeLists.txt: fixes issue where FORCE_COLORED_OUTPUT was not respected form environment (introduces -C cli arg)
* merges 5df4275: Make it easy to pass extra build args to deps and orca in BuildLinux.sh (#9648)
* Fix CMAKE version check to only apply to Windows
* Treat arch-based distros as arch when building
* Fix cmake policy version issue on Arch
* Remove duplicate cmake minimum version check
* Move cmake 4.x compatibility fix to BuildLinux.sh
* chore: limit cmake version to 3.31 for win32
* chore: fix check for variable path order
* chore: fix check for pipeline
* chore: remove warn on CI enviroment
* chore: change cmake limit version from 3.32 to 4.0
* Build script improvements.
Add NDEBUG for non-debug MacOS builds. I don't understand why, but on my system Release and RelWithDebugInfo builds were not defining NDEBUG, resulting in failing asserts and other sanity checks.
Add -jN flag to BuildLinux.sh. On my 4-core 8GB RAM system, passing -j4 allows building without a swap storm.
Improve README.md description of building on macOS.
* Merge branch 'main' into bug/macos-ndebug
* Merge branch 'main' into bug/macos-ndebug
* Merge branch 'SoftFever:main' into bug/macos-ndebug
* Improve CMake syntax. Mention Mac path to app.
* Merge branch 'main' into bug/macos-ndebug
* Supress warnings on unused functions an variables
Compilation of OrcaSlicer produces 3056 warnings.
Nearly half of them related to unused functions and variables.
It is unlikely we going to clean them up since we may want to
keep code base as close to the BBS as possible
* initialize class member with correct value
* Fix memset arguments order
* Merge multiple statemensts into single
* fix -Wpessimizing-move
* Fix calls to depreciated wxPen constructor
* Fix use of wxTimerEvent
* Fix unrecognized character escape sequence
* Fix signed/unsigned mismatch
At least as much as possible without significantly altering parts of the application
* Clean unreferenced variables
* fix mistyped namespace selector
* Update deprecated calls
* Fix preprocessor statement
* Remove empty switch statements
* Change int vector used as bool to bool vector
* Remove empty control statements and related unused code
* Change multi character constant to string constant
* Fix discarded return value
json::parse was being called on the object, rather than statically like it should be. Also, the value was not being captured.
* Rename ICON_SIZE def used by MultiMachine
By having the definition in the header, it causes issues when other files define ICON_SIZE. By renaming it to MM_ICON_SIZE, this lessens the issue. It would probably be ideal to have the definitions in the respective .cpp that use them, but it would make it less convenient to update the values if needed in the future.
* Remove unused includes
* Fix linux/macOS compilation
* Hide unused-function errors on non-Windows systems
* Disable signed/unsigned comparison mismatch error
* Remove/Disable more unused variables
Still TODO: check double for loop in Print.cpp
* Remove unused variable that was missed
* Remove unused variables in libraries in the src folder
* Apply temporary fix for subobject linkage error
* Remove/Disable last set of unused variables reported by GCC
* remove redundant for loop
* fix misspelled ifdef check
* Update message on dialog
* Fix hard-coded platform specific modifier keys
* Remove duplicate for loop
* Disable -Wmisleading-indentation warning
* disable -Wswitch warning
* Remove unused local typedefs
* Fix -Wunused-value
* Fix pragma error on Windows from subobject linkage fix
* Fix -Waddress
* Fix null conversions (-Wconversion-null)
---------
Co-authored-by: SoftFever <softfeverever@gmail.com>
* Initial commit for the builder
* fix wx, use hack to install into /app
* add some workarounds for /usr/local
* fix up rest of paths
* attempt to fix wxwebview undef
* figure out why wxwidgets isnt getting its patches applied
* do "proper" patching of wxwidgets
* Flip the flag
* actually append the /usr/local
* restrict package finding to flatpak only
* Update the destdir stuff for mpfr, gmp
* Transfer over all the _destdir, again
* update patch command for all other plats
* initial ci check
* what even happened
* clear ci image
* I doubt this will do anything
* do cleanup after running each step
* remove build objects for flatpak ci
* compress debug info
* Fix MacOS build
* Try saving space after building deps
* No debug info for now
* Do debug info, use thin static archives
* use BSD flag, not --thin
* try building with lto
* Use release, no debug info
* remove lto
* Revert the last 5 commits
* It might require write perms
* Revert "It might require write perms"
This reverts commit 44cec58a57.
* Import fixes for merge
* remove some patch stuff
* the worst hack!
* remove uneeded patches
* Initial commit for the builder
* note to self, go back to regular wx
* attempt to fix wxwebview undef
* do "proper" patching of wxwidgets
* update patch command for all other plats
* what even happened
* -ldep_name-NOTFOUND is still here
* concat patches
* Build wx with flatpak
* more wx shenatigans
* fix a missing import
* build wx with proper flags
* fix imports and libs
* trigger ci
* try fixing mac and windows ci
* remove duplicate definition of freetype
* curl may not have openssl for a dep
* has openssl been found?
* force building
* build images on apple
* cleanup for review
* cleanup cmake files
---------
Co-authored-by: SoftFever <softfeverever@gmail.com>
* FIX: Support building with latest Xcode 15.3
Downgrade 'enum-constexpr-conversion' error to warning.
Signed-off-by: Dzmitry Neviadomski <nevack.d@gmail.com>
* FIX: Do not assume libdeflate is not installed on the system
Explicitly disable libdeflate support in TIFF depencency.
PrusaSlicer already does that.
Signed-off-by: Dzmitry Neviadomski <nevack.d@gmail.com>
* FIX: Downgrade enum-constexpr-conversion warning only on AppleClang 15+
Signed-off-by: Dzmitry Neviadomski <nevack.d@gmail.com>
---------
Signed-off-by: Dzmitry Neviadomski <nevack.d@gmail.com>
