On 11/19/2019 10:06 AM, Taco Hoekwater wrote:


On 18 Nov 2019, at 22:25, Alan Bowen <bowenala...@gmail.com> wrote:

This seems to be a problem peculiar to Catalina (macOS 10.15.1). There is a 
fix, as Otared and Glen have indicated.

go to Apple menu -> Preferences -> Security & Privacy
        on the Security & Privacy, login, choose the tab General
        there choose, towards the bottom of that pane, under « Allow apps 
downloaded from: »
                    choose the radio button App Store and identified developers
                    click the button «allow anyway»

There is a easier / safer way: open de folder with ‘mtxrun’ in it using Finder. 
Then select
‘Open’ from the popup menu on the mtxrun executable. That will give you dialog 
with that
’This app was downloaded …’ error, but now with an extra ‘Open’ button on it. 
Click that,
and it will start mtxrun once. Running mtxrun itself this ways is pointless, 
but it makes
Apple start to remember that *you* trust this mtxrun binary, and from now on it 
can be
used normally.

On packaged distributed Apps you download from the web, you can also hold down 
CTRL while
opening the App so you don’t have to do the Finder step, but I am not certain 
that works with
command-line binaries (and cannot test any more since I already did the ‘fix’ 
above).

It is a bit tedious, but sort of I see Apple’s point. Making it harder to run 
downloaded
unsigned executables is probably a good thing.
Kind of what windows does -) Remembering your choice (but I think also doing some virus scan on the first run and/or download).

Do we need to wikify these things? A page with "if this happens, do that" items? Or maybe some readme in the installer zips? I think one problem is that users have no clue (ok, tex will not be the only such app so in the end they will know and tex users are normally more in figuring-out-mode anyway).

Hans

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