How to develop a DirectFB app without leaving X.11 environment

Question

I\'m trying to develop a GUI application for an embedded platform, without any windowing whatsoever and I\'m doing that with DirectFB, and it suits my needs very fine.

Answer 1

I came to use ephemient's solution to run DirectFB applications inside a chroot environment (target filesystem as a courtesy of buildroot) in addition to Xnest, a separate X environment which runs in a window of the current X.

$ Xnest -ac :1 &
$ cd $TARGET_DIR # into the target file system root
$ DISPLAY=:1 sudo chroot . usr/bin/df_neo

This way you can assure not only your directfb installation is correct, but also all the required dependencies are installed inside the chroot'ed file system.