====== Build LineageOS ======

This page is about building [[https://lineageos.org/|LineageOS]] for your mobile device of choice using a Gentoo PC as build-host.

If you want to build Gentoo linux to run on an Android device you can refer to [[https://wiki.gentoo.org/wiki/Project:Android|this wiki page]].

Gentoo forums post are my source: [[https://forums.gentoo.org/viewtopic-t-1096696-start-0.html|this one]]

There are the [[https://wiki.lineageos.org/devices/surya/build/|official LineageOS instructions]]. The following notes are the changes you need to do on your Gentoo system to be able to build instead of using Ubuntu.

===== Packages needed =====

Emerge the following:
<code>
#lineage
   app-arch/lz4
   app-arch/lzop
   media-gfx/imagemagick
   media-gfx/pngcrush
#aosp
   app-crypt/gnupg
   app-arch/zip[-natspec]
   app-arch/unzip
   dev-libs/libxslt
   dev-libs/libxml2
   dev-util/android-tools
   dev-util/ccache
   dev-util/gperf
   dev-vcs/git
   media-libs/libsdl
   media-libs/mesa
   net-misc/curl
   net-misc/rsync
   sys-devel/bc
   sys-devel/bison
   sys-devel/flex
   sys-devel/gcc[cxx]
   sys-libs/ncurses[abi_x86_32]
   sys-libs/ncurses-compat[abi_x86_32]
   sys-libs/readline[abi_x86_32]
   sys-libs/zlib[abi_x86_32]
   sys-process/schedtool
   sys-fs/squashfs-tools
   x11-base/xorg-proto
   x11-libs/libX11
   x11-libs/wxGTK:3.0 
   </code>


==== Settings before building ====
   
Unset the following before building:
<code>
unset JAVAC
unset JAVA_HOME
unset JDK_HOME
unset LEX
</code>