[Bug 54831] GStreamer gst_init_check() crashes when called from winegstreamer on recent macOS

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54831

--- Comment #1 from Brendan Shanks  ---
Under macOS Sonoma, Wine crashes with an odd "objc[89070]: -[NSObject
methodSignatureForSelector:] not available without CoreFoundation" ObjC
exception.

The root cause is the same as this issue: libSystem needs to be initialized,
using one of the two methods mentioned. I'm still pursuing the
__program_vars+zerofill approach, but I'll attach a patch that uses the other
method (useful as a short-term fix, or for older Wine versions).