backport: bitcoin/bitcoin#34036: contrib: update macOS SDK to Xcode-26.1.1-17B100#7189

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knst wants to merge 8 commits intodashpay:developfrom

Commits on Mar 1, 2026

Revert "build: update to macOS 15.0 SDK from Xcode 16.0"
knst
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Revert "fix(build): include resource directory in search path for include resolution"
knst
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Merge bitcoin/bitcoin#34036: contrib: update macOS SDK to Xcode-26.1.1-17B100

fanquake
authored and
knst
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Merge bitcoin/bitcoin#32009: contrib: turn off compression of macOS SDK to fix determinism (across distros)

fanquake
authored and
knst
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fix: hash of archive and extra debug output
knst
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fix: minimum sdk & minumum xcode are not the same
knst
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Merge bitcoin/bitcoin#32584: depends: hard-code necessary c(xx)flags rather than setting them per-host

achow101
authored and
knst
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docs: TODO to reapply reverted part of bitcoin#30451
knst
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