[compiler-rt] [compiler-rt] Allow define MACOS_ARM_SUPPORT from cmake to skip the c… (PR #127019)

[via llvm-commits]

https://github.com/trcrsired updated https://github.com/llvm/llvm-project/pull/127019

>From f49da0ae241a8384046d1498661f8f24e9417a6b Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsired at users.noreply.github.com>
Date: Thu, 13 Feb 2025 02:50:33 -0500
Subject: [PATCH] [compiler-rt] Allow define MACOS_ARM_SUPPORT from cmake to
 skip the check

This is for cross compiling from other OS like linux to Mac to skip the check
---
 compiler-rt/cmake/builtin-config-ix.cmake | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/compiler-rt/cmake/builtin-config-ix.cmake b/compiler-rt/cmake/builtin-config-ix.cmake
index b1bde47ec8555..465b0fbd4c357 100644
--- a/compiler-rt/cmake/builtin-config-ix.cmake
+++ b/compiler-rt/cmake/builtin-config-ix.cmake
@@ -129,7 +129,9 @@ if(APPLE)
   set(DARWIN_osx_BUILTIN_ALL_POSSIBLE_ARCHS ${X86} ${X86_64})
   # Add support for arm64 macOS if available in SDK.
   foreach(arch ${ARM64})
-    sdk_has_arch_support(${DARWIN_osx_SYSROOT} macosx ${arch} MACOS_ARM_SUPPORT)
+    if(NOT MACOS_ARM_SUPPORT)
+      sdk_has_arch_support(${DARWIN_osx_SYSROOT} macosx ${arch} MACOS_ARM_SUPPORT)
+    endif()
     if (MACOS_ARM_SUPPORT)
      list(APPEND DARWIN_osx_BUILTIN_ALL_POSSIBLE_ARCHS ${arch})
     endif()