curl update to 7.73.0 breaks ABI?

[Gary Palmer]

On Fri, Oct 16, 2020 at 04:29:19PM -0700, Kevin Oberman wrote:
> After updating curl today, virtualbox will no longer start. The major
> version of libcurl was not bumped.
> 
> The error is:
> VirtualBox: dlopen("/usr/local/lib/virtualbox/VBoxRT.so",) failed: Shared
> object "libcurl.so.4" not found, required by "VBoxRT.so"
> VirtualBox: Error -610 in supR3HardenedMainInitRuntime!
> VirtualBox: dlopen("/usr/local/lib/virtualbox/VBoxRT.so",) failed:
> /usr/local/lib/libcurl.so.4: Undefined symbol "Curl_get_line"
> 
> Backing curl off to 7.72 allows virtualbox to run again.

Check you have "COOKIES" and "ALTSVC" (I think) checked in the curl
options.  I had cookies disabled for some reason in one of my builds and
it resulted in Curl_get_line not being generated

Regards,

Gary