kou commented on issue #39023:
URL: https://github.com/apache/arrow/issues/39023#issuecomment-1835390089
Does this work?
```diff
diff --git a/cpp/cmake_modules/ThirdpartyToolchain.cmake
b/cpp/cmake_modules/ThirdpartyToolchain.cmake
index 978f03198..3a6f36350 100644
--- a/cpp/cmake_modules/ThirdpartyToolchain.cmake
+++ b/cpp/cmake_modules/ThirdpartyToolchain.cmake
@@ -975,9 +975,11 @@ set(EP_COMMON_CMAKE_ARGS
# Enable s/ccache if set by parent.
if(CMAKE_C_COMPILER_LAUNCHER AND CMAKE_CXX_COMPILER_LAUNCHER)
+ file(TO_CMAKE_PATH "${CMAKE_C_COMPILER_LAUNCHER}"
EP_CMAKE_C_COMPILER_LAUNCHER)
+ file(TO_CMAKE_PATH "${CMAKE_CXX_COMPILER_LAUNCHER}"
EP_CMAKE_CXX_COMPILER_LAUNCHER)
list(APPEND EP_COMMON_CMAKE_ARGS
- -DCMAKE_C_COMPILER_LAUNCHER=${CMAKE_C_COMPILER_LAUNCHER}
- -DCMAKE_CXX_COMPILER_LAUNCHER=${CMAKE_CXX_COMPILER_LAUNCHER})
+ -DCMAKE_C_COMPILER_LAUNCHER=${EP_CMAKE_C_COMPILER_LAUNCHER}
+ -DCMAKE_CXX_COMPILER_LAUNCHER=${EP_CMAKE_CXX_COMPILER_LAUNCHER})
endif()
if(NOT ARROW_VERBOSE_THIRDPARTY_BUILD)
```
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