Revert "[CMake] Enable LLVM_ENABLE_PER_TARGET_RUNTIME_DIR by default on Linux"

This reverts commit abb956370ee71d018e9a88ae196f039f6c4e0dae, which broke
the libc++ CI on Linux.

diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
index 64be2f3..c7fdc03 100644 (file)
--- a/llvm/CMakeLists.txt
+++ b/llvm/CMakeLists.txt
@@ -671,12 +671,7 @@ endif()
 set(LLVM_TARGET_TRIPLE_ENV CACHE STRING "The name of environment variable to override default target. Disabled by blank.")
 mark_as_advanced(LLVM_TARGET_TRIPLE_ENV)
 
-if(CMAKE_SYSTEM_NAME MATCHES "Linux")
-  set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default ON)
-else()
-  set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default OFF)
-endif()
-set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR ${LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default} CACHE BOOL
+set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR OFF CACHE BOOL
   "Enable per-target runtimes directory")
 
 set(LLVM_PROFDATA_FILE "" CACHE FILEPATH