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From: moi <findlaybill@blueyonder.co.uk>
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Subject: macOS Ventura 13.6 update problem
Date: Fri, 22 Sep 2023 21:02:17 +0100
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Installing the macOS Ventura 13.6 security update clobbers GNAT.
Specifically, the link stage fails:

> -macosx_version_min has been renamed to -macos_version_min
> 0  0x104de0f43  __assert_rtn + 64
> 1  0x104ce2f43  ld::AtomPlacement::findAtom(unsigned char, unsigned long long, ld::AtomPlacement::AtomLoc const*&, long long&) const + 1411
> 2  0x104cff431  ld::InputFiles::SliceParser::parseObjectFile(mach_o::Header const*) const + 19745
> 3  0x104d0fb71  ld::InputFiles::parseAllFiles(void (ld::AtomFile const*) block_pointer)::$_7::operator()(unsigned long, ld::FileInfo const&) const + 657
> 4  0x7ff80b631066  _dispatch_client_callout2 + 8
> 5  0x7ff80b642e09  _dispatch_apply_invoke + 213
> 6  0x7ff80b631033  _dispatch_client_callout + 8
> 7  0x7ff80b6410f6  _dispatch_root_queue_drain + 683
> 8  0x7ff80b641768  _dispatch_worker_thread2 + 170
> 9  0x7ff80b7cec0f  _pthread_wqthread + 257
> ld: Assertion failed: (resultIndex < sectData.atoms.size()), function findAtom, file Relocations.cpp, line 1336.
> collect2: error: ld returned 1 exit status
> gnatmake: *** link failed.

Simon's "magic formula", '-largs -Wl,-ld_classic' restores sanity.
I guess the CLTs were updated without asking permission. 8-(

-- 
Bill F.