[clang] [CMake] Update CMake cache file for the ARM/Aarch64 cross toolchain builds. NFC. (PR #116744)

[Vladimir Vereschaka via cfe-commits]

https://github.com/vvereschaka created https://github.com/llvm/llvm-project/pull/116744

Forcely disable the libc++ benchmarks on Windows build hosts. The benchmark configuration currently does not support the cross builds on Windows hosts.

Also removed unnecessary `CMAKE_CROSSCOMPILING` CMake option.

>From 9fe3b6d922a72ff8fff4ec24bbc1b4b45e2130e8 Mon Sep 17 00:00:00 2001
From: Vladimir Vereschaka <vvereschaka at accesssoftek.com>
Date: Mon, 18 Nov 2024 21:41:57 -0800
Subject: [PATCH] [CMake] Update CMake cache file for the ARM/Aarch64 cross
 toolchain builds. NFC.

Forcly disable the libc++ benchmarks on Windows build hosts. The benchmark configuration
currently does not support the cross builds on Windows hosts.
---
 clang/cmake/caches/CrossWinToARMLinux.cmake | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/clang/cmake/caches/CrossWinToARMLinux.cmake b/clang/cmake/caches/CrossWinToARMLinux.cmake
index 87118bbd33377d..64f9ae296ae51e 100644
--- a/clang/cmake/caches/CrossWinToARMLinux.cmake
+++ b/clang/cmake/caches/CrossWinToARMLinux.cmake
@@ -119,7 +119,6 @@ if (NOT DEFINED CMAKE_BUILD_TYPE)
   set(CMAKE_BUILD_TYPE "Release" CACHE STRING "")
 endif()
 
-set(CMAKE_CROSSCOMPILING                    ON CACHE BOOL "")
 set(CMAKE_CL_SHOWINCLUDES_PREFIX            "Note: including file: " CACHE STRING "")
 # Required if COMPILER_RT_DEFAULT_TARGET_ONLY is ON
 set(CMAKE_C_COMPILER_TARGET                 "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")
@@ -219,6 +218,11 @@ set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_CXX_ABI
 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS      ON CACHE BOOL "")
 # Merge libc++ and libc++abi libraries into the single libc++ library file.
 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_STATIC_ABI_LIBRARY          ON CACHE BOOL "")
+# Forcly disable the libc++ benchmarks on Windows build hosts
+# (currently the benchmark test configuration does not support the cross builds there).
+if (WIN32)
+  set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_INCLUDE_BENCHMARKS               OFF CACHE BOOL "")
+endif(WIN32)
 
 # Avoid searching for the python3 interpreter during the runtimes configuration for the cross builds.
 # It starts searching the python3 package using the target's sysroot path, that usually is not compatible with the build host.