https://bugs.winehq.org/show_bug.cgi?id=50759
--- Comment #4 from Robert Walker bob.mt.wya@gmail.com --- (In reply to Jacek Caban from comment #3)
It was intentional. If you don't have Gecko in shared location, Wine will install it on demand.
Thanks for getting back - so promptly ...
This is on Gentoo... So if you enable USE +gecko - then the app-emulation/wine-gecko package is installed globally, on the system, as in:
sha256sum /usr/share/wine/gecko/wine-gecko-2.47.2-x86* 0596761024823ff3c21f13e1cd5cd3e89dccc698294d62974d8930aeda86ce45 /usr/share/wine/gecko/wine-gecko-2.47.2-x86_64.msi e520ce7336cd420cd09c91337d87e74bb420300fd5cbc6f724c1802766b6a61d /usr/share/wine/gecko/wine-gecko-2.47.2-x86.msi
Formally these packages would be automatically installed - on the creation of a clean WINEPREFIX. As I indicated in my successful log (see above) - for Wine commit 6cf0e7fe85ba2f9348cec4d4d555c5dac42033de.
This functionality has stopped working - as of Wine commit 5b362f07f67db5f90ac355c62a1f3d73658c4346.
I'll take a look at the code changes properly, as soon as I get a chance!