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82 lines
3.3 KiB
Markdown
82 lines
3.3 KiB
Markdown
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# Building Slic3r++ on Mac OS
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To build Slic3r++ on Mac OS, you will need the following software:
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- XCode
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- CMake
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- git
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- gettext
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XCode is available through Apple's App Store, the other three tools are available on
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[brew](https://brew.sh/) (use `brew install cmake git gettext` to install them).
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### Dependencies
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Slic3r++ comes with a set of CMake scripts to build its dependencies, it lives in the `deps` directory.
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Open a terminal window and navigate to Slic3r++ sources directory and then to `deps`.
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Use the following commands to build the dependencies:
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mkdir build
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cd build
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cmake ..
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make
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This will create a dependencies bundle inside the `build/destdir` directory.
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You can also customize the bundle output path using the `-DDESTDIR=<some path>` option passed to `cmake`.
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**Warning**: Once the dependency bundle is installed in a destdir, the destdir cannot be moved elsewhere.
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(This is because wxWidgets hardcodes the installation path.)
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FIXME The Cereal serialization library needs a tiny patch on some old OSX clang installations
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https://github.com/USCiLab/cereal/issues/339#issuecomment-246166717
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### Building Slic3r++
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If dependencies are built without errors, you can proceed to build Slic3r++ itself.
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Go back to top level Slic3r++ sources directory and use these commands:
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mkdir build
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cd build
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cmake .. -DCMAKE_PREFIX_PATH="$PWD/../deps/build/destdir/usr/local"
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The `CMAKE_PREFIX_PATH` is the path to the dependencies bundle but with `/usr/local` appended - if you set a custom path
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using the `DESTDIR` option, you will need to change this accordingly. **Warning:** the `CMAKE_PREFIX_PATH` needs to be an absolute path.
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The CMake command above prepares Slic3r++ for building from the command line.
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To start the build, use
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make -jN
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where `N` is the number of CPU cores, so, for example `make -j4` for a 4-core machine.
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Alternatively, if you would like to use XCode GUI, modify the `cmake` command to include the `-GXcode` option:
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cmake .. -GXcode -DCMAKE_PREFIX_PATH="$PWD/../deps/build/destdir/usr/local"
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and then open the `Slic3r++.xcodeproj` file.
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This should open up XCode where you can perform build using the GUI or perform other tasks.
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### Note on Mac OS X SDKs
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By default Slic3r++ builds against whichever SDK is the default on the current system.
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This can be customized. The `CMAKE_OSX_SYSROOT` option sets the path to the SDK directory location
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and the `CMAKE_OSX_DEPLOYMENT_TARGET` option sets the target OS X system version (eg. `10.14` or similar).
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Note you can set just one value and the other will be guessed automatically.
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In case you set both, the two settings need to agree with each other. (Building with a lower deployment target
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is currently unsupported because some of the dependencies don't support this, most notably wxWidgets.)
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Please note that the `CMAKE_OSX_DEPLOYMENT_TARGET` and `CMAKE_OSX_SYSROOT` options need to be set the same
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on both the dependencies bundle as well as Slic3r++ itself.
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Official Mac Slic3r++ builds are currently built against SDK 10.9 to ensure compatibility with older Macs.
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_Warning:_ XCode may be set such that it rejects SDKs bellow some version (silently, more or less).
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This is set in the property list file
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/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Info.plist
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To remove the limitation, simply delete the key `MinimumSDKVersion` from that file.
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