Olive: Add AppImage builds for 32-bit (x86; i386)

[Symbian9]

Add task to Travis CI for build 32-bit AppImage & upload it as asset to continuous release

Naming: Olive-{git}-x86.AppImage

Cast @probonopd

[probonopd]

Uh, I don't know how to do this, but @TheAssassin might know.

[TheAssassin]

Just install all of your dependencies as 32-bit versions, then cross-build for 32-bit.

[probonopd]

install all of your dependencies as 32-bit versions

Probably along the lines of

sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get -y install bash:i386 

then cross-build for 32-bit

How?

[TheAssassin]

Not really. See https://github.com/linuxdeploy/linuxdeploy/blob/master/.travis.yml#L16-L28 and https://github.com/linuxdeploy/linuxdeploy/blob/master/cmake/toolchains/i386-linux-gnu.cmake.

[probonopd]

Thanks for the hints.

[itsmattkc]

I seem to have it correctly building for 32-bit, but the resulting AppImage doesn't run on 32-bit systems. Is the container AppImage still 64-bit code or have I done something wrong?

[TheAssassin]

You need to build with the i386 version of appimagetool.

[itsmattkc]

How would I do that considering it's set up to use linuxdeployqt? Would I need to compile linuxdeployqt manually?

[TheAssassin]

linuxdeployqt is so limited...

Remove -appimage, download appimagetool yourself, run it yourself.

[probonopd]

linuxdeployqt is so limited...

Blocked by https://github.com/AppImage/AppImageKit/issues/304, rather.

[itsmattkc]

Done in 229d01a400f3a7c65ca6e3d07b8f3f0c6d94f757