[GTK] Auto-detection of cairo-gl fails
Created attachment 259401 [details] Patch
A bit more detail: ACCELERATED_2D_CANVAS was being enabled in my Debian-based OS even with no cairo-gl. It turned out CAIROGL_FOUND was true when cairo-glx or cairo-egl were available even if cairo-gl was not. After fixing that I noticed the call to set the default was failing because the variable was being "evaluated" to its string form using ${}, which ends up being empty.
Comment on attachment 259401 [details] Patch r=me
Comment on attachment 259401 [details] Patch ffe6c129dc88661561ab30ea831696c3aab99a4b
Comment on attachment 259401 [details] Patch http://trac.webkit.org/changeset/188685