[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] 83497f: Restore support for large cursor on linux X11 VM

[Nicolas Cellier]

  Branch: refs/heads/restore_large_cursor_support
  Home:   https://github.com/OpenSmalltalk/opensmalltalk-vm
  Commit: 83497f5a6c3d7b96cbae086729dd4c849ef029ea
      https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/83497f5a6c3d7b96cbae086729dd4c849ef029ea
  Author: Nicolas Cellier <nicolas.cellier.aka.nice at gmail.com>
  Date:   2019-09-03 (Tue, 03 Sep 2019)

  Changed paths:
    M platforms/unix/vm-display-X11/acinclude.m4
    M scripts/ci/travis_install.sh

  Log Message:
  -----------
  Restore support for large cursor on linux X11 VM

Large cursor support is present but optional on X11
It is triggered by compiler define HAVE_LIBXRENDER
It depends on availability of Xrender library which is an optional X extension
Try to test presence of header and library in configure macro
Note that it is also necessary to install the proper package
e.g. on debian flavours

	sudo apt-get install libxrender-dev