Auto merge of #104385 - BlackHoleFox:apple-minimum-bumps, r=petrochenkov

Raise minimum supported Apple OS versions

This implements the proposal to raise the minimum supported Apple OS versions as laid out in the now-completed MCP (https://github.com/rust-lang/compiler-team/issues/556).

As of this PR, rustc and the stdlib now support these versions as the baseline:
- macOS: 10.12 Sierra
- iOS: 10
- tvOS: 10
- watchOS: 5 (Unchanged)

In addition to everything this breaks indirectly, these changes also erase the `armv7-apple-ios` target (currently tier 3) because the oldest supported iOS device now uses ARMv7s. Not sure what the policy around tier3 target removal is but shimming it is not an option due to the linker refusing.

[Per comment](https://github.com/rust-lang/compiler-team/issues/556#issuecomment-1297175073), this requires a FCP to merge. cc `@wesleywiser.`

5 files changed, 8 insertions, 17 deletions

diff --git a/src/bootstrap/llvm.rs b/src/bootstrap/llvm.rs
index 7e5ade50ca7..4556831589b 100644
--- a/src/bootstrap/llvm.rs
+++ b/src/bootstrap/llvm.rs
@@ -703,14 +703,7 @@ fn configure_cmake(
         cflags.push(" ");
         cflags.push(s);
     }
-    // Some compiler features used by LLVM (such as thread locals) will not work on a min version below iOS 10.
-    if target.contains("apple-ios") {
-        if target.contains("86-") {
-            cflags.push(" -miphonesimulator-version-min=10.0");
-        } else {
-            cflags.push(" -miphoneos-version-min=10.0");
-        }
-    }
+
     if builder.config.llvm_clang_cl.is_some() {
         cflags.push(&format!(" --target={target}"));
     }
diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml
index 973b9a0a089..cbf848cb4a3 100644
--- a/src/ci/github-actions/ci.yml
+++ b/src/ci/github-actions/ci.yml
@@ -484,7 +484,7 @@ jobs:
               SCRIPT: ./x.py dist bootstrap --include-default-paths --host=x86_64-apple-darwin --target=x86_64-apple-darwin
               RUST_CONFIGURE_ARGS: --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false --set rust.lto=thin
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
-              MACOSX_DEPLOYMENT_TARGET: 10.7
+              MACOSX_DEPLOYMENT_TARGET: 10.12
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
               NO_LLVM_ASSERTIONS: 1
               NO_DEBUG_ASSERTIONS: 1
@@ -497,7 +497,7 @@ jobs:
               SCRIPT: ./x.py dist bootstrap --include-default-paths --host='' --target=aarch64-apple-ios,x86_64-apple-ios,aarch64-apple-ios-sim
               RUST_CONFIGURE_ARGS: --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
-              MACOSX_DEPLOYMENT_TARGET: 10.7
+              MACOSX_DEPLOYMENT_TARGET: 10.12
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
               NO_LLVM_ASSERTIONS: 1
               NO_DEBUG_ASSERTIONS: 1
@@ -509,8 +509,8 @@ jobs:
               SCRIPT: ./x.py --stage 2 test --skip tests/ui --skip tests/rustdoc --skip tests/run-make-fulldeps
               RUST_CONFIGURE_ARGS: --build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
-              MACOSX_DEPLOYMENT_TARGET: 10.8
-              MACOSX_STD_DEPLOYMENT_TARGET: 10.7
+              MACOSX_DEPLOYMENT_TARGET: 10.12
+              MACOSX_STD_DEPLOYMENT_TARGET: 10.12
               NO_LLVM_ASSERTIONS: 1
               NO_DEBUG_ASSERTIONS: 1
               NO_OVERFLOW_CHECKS: 1
diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md
index 7c0c56035c0..5701b002f21 100644
--- a/src/doc/rustc/src/platform-support.md
+++ b/src/doc/rustc/src/platform-support.md
@@ -36,7 +36,7 @@ target | notes
 `i686-pc-windows-gnu` | 32-bit MinGW (Windows 7+) [^windows-support]
 `i686-pc-windows-msvc` | 32-bit MSVC (Windows 7+) [^windows-support]
 `i686-unknown-linux-gnu` | 32-bit Linux (kernel 3.2+, glibc 2.17+)
-`x86_64-apple-darwin` | 64-bit macOS (10.7+, Lion+)
+`x86_64-apple-darwin` | 64-bit macOS (10.12+, Sierra+)
 `x86_64-pc-windows-gnu` | 64-bit MinGW (Windows 7+) [^windows-support]
 `x86_64-pc-windows-msvc` | 64-bit MSVC (Windows 7+) [^windows-support]
 `x86_64-unknown-linux-gnu` | 64-bit Linux (kernel 3.2+, glibc 2.17+)
@@ -245,7 +245,6 @@ target | std | host | notes
 `armv6-unknown-freebsd` | ✓ | ✓ | ARMv6 FreeBSD
 [`armv6-unknown-netbsd-eabihf`](platform-support/netbsd.md) | ✓ | ✓ | ARMv6 NetBSD w/hard-float
 [`armv6k-nintendo-3ds`](platform-support/armv6k-nintendo-3ds.md) | ? |  | ARMv6K Nintendo 3DS, Horizon (Requires devkitARM toolchain)
-`armv7-apple-ios` | ✓ |  | ARMv7-A Cortex-A8 iOS
 [`armv7-sony-vita-newlibeabihf`](platform-support/armv7-sony-vita-newlibeabihf.md) | ? |  | ARMv7-A Cortex-A9 Sony PlayStation Vita (requires VITASDK toolchain)
 [`armv7-unknown-linux-ohos`](platform-support/openharmony.md) | ✓ |  | ARMv7-A OpenHarmony |
 [`armv7-unknown-linux-uclibceabi`](platform-support/armv7-unknown-linux-uclibceabi.md) | ✓ | ✓ | ARMv7-A Linux with uClibc, softfloat
@@ -265,7 +264,7 @@ target | std | host | notes
 `hexagon-unknown-linux-musl` | ? |  |
 `i386-apple-ios` | ✓ |  | 32-bit x86 iOS
 [`i586-pc-nto-qnx700`](platform-support/nto-qnx.md) | * |  | 32-bit x86 QNX Neutrino 7.0 RTOS |
-`i686-apple-darwin` | ✓ | ✓ | 32-bit macOS (10.7+, Lion+)
+`i686-apple-darwin` | ✓ | ✓ | 32-bit macOS (10.12+, Sierra+)
 `i686-pc-windows-msvc` | * |  | 32-bit Windows XP support
 [`i686-pc-windows-gnullvm`](platform-support/pc-windows-gnullvm.md) | ✓ | ✓ |
 `i686-unknown-haiku` | ✓ | ✓ | 32-bit Haiku
diff --git a/src/etc/installer/pkg/Distribution.xml b/src/etc/installer/pkg/Distribution.xml
index 395814e7488..85c26ec4993 100644
--- a/src/etc/installer/pkg/Distribution.xml
+++ b/src/etc/installer/pkg/Distribution.xml
@@ -7,7 +7,7 @@
     <domains enable_anywhere="false" enable_currentUserHome="false" enable_localSystem="true" />
     <volume-check>
         <allowed-os-versions>
-            <os-version min="10.7"/>
+            <os-version min="10.12"/>
         </allowed-os-versions>
     </volume-check>
     <choices-outline>
diff --git a/src/tools/build-manifest/src/main.rs b/src/tools/build-manifest/src/main.rs
index 778609da062..0f7a3c2f952 100644
--- a/src/tools/build-manifest/src/main.rs
+++ b/src/tools/build-manifest/src/main.rs
@@ -69,7 +69,6 @@ static TARGETS: &[&str] = &[
     "arm-unknown-linux-musleabihf",
     "armv5te-unknown-linux-gnueabi",
     "armv5te-unknown-linux-musleabi",
-    "armv7-apple-ios",
     "armv7-linux-androideabi",
     "thumbv7neon-linux-androideabi",
     "armv7-unknown-linux-gnueabi",