# How to build 3D Slicer for Raspberry?

**URL:** <https://discourse.slicer.org/t/how-to-build-3d-slicer-for-raspberry/2843>\
**Category:** Support\
**Created:** [May 17, 2018, 3:19pm UTC](https://discourse.slicer.org/t/how-to-build-3d-slicer-for-raspberry/2843 "2018-05-17T15:19:20Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![chir.set](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/chir.set/32/66982_2.png) [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Post date:** [May 20, 2018, 2:03pm UTC](https://discourse.slicer.org/t/how-to-build-3d-slicer-for-raspberry/2843/4 "2018-05-20T14:03:18Z")

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I built Slicer on [Odroid-U2](http://www.hardkernel.com/main/products/prdt_info.php?g_code=G135341370451) out of technical interest on Arch Linux for ARM. There was just one more step to do :

build CTKAPPLAUNCHER,  
download [CTKAppLauncher pre-compiled for amd64](https://github.com/commontk/AppLauncher/releases/download/v0.1.21/CTKAppLauncher-0.1.21-linux-amd64.tar.gz),  
replace the x86\_64 blob by the locally compiled ARM binary,  
rename the package and patch the cmake file :

> ```
> diff --git a/SuperBuild/External_CTKAPPLAUNCHER.cmake b/SuperBuild/External_CTKAPPLAUNCHER.cmake
> index dda4e1a54..911cdb428 100644
> --- a/SuperBuild/External_CTKAPPLAUNCHER.cmake
> +++ b/SuperBuild/External_CTKAPPLAUNCHER.cmake
> @@ -30,7 +30,8 @@ if(Slicer_USE_CTKAPPLAUNCHER)
> set(CTKAPPLAUNCHER_ARCHITECTURE "i386")
> set(md5 "9fa2acb7d934a43720a0bee8679cbeff")
> elseif("${CTKAPPLAUNCHER_OS}" STREQUAL "linux")
> - set(md5 "57d9e6fc1fdfe42d78fc4e277b9559ba")
> + set(CTKAPPLAUNCHER_ARCHITECTURE "armv7l")
> + set(md5 "783455a7ee0bea086082f64da6adda1d")
> elseif("${CTKAPPLAUNCHER_OS}" STREQUAL "macosx")
> set(md5 "1f0d86b1eeb386d6892a76db7b111280")
> endif()
> 
> ```

Please not that if CTKAPPLAUNCHER\_ARCHITECTURE is not explicitely set, it defaults to i386. There’s probably a simpler way to build it automatically, I’m eager to learn about it.

It takes about 24 hours to build using all 4 cores with lowest nice priority. Here is a [video](https://mega.nz/#!lZ1lWDxS!txUyRsslaxzGvKWgKcBY9EGlQ_i2wWv0TmlO0Qacl8Y) captured with Slicer freshly started after rebooting the build device. (You may advance the video with the mouse, some simple steps are very long). Slices are never displayed in the viewers.

Of course it’s not for routine use. Just a curious thing to do in the background.

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_[View the full topic](https://discourse.slicer.org/t/how-to-build-3d-slicer-for-raspberry/2843)._