raulcd commented on code in PR #44989:
URL: https://github.com/apache/arrow/pull/44989#discussion_r1946325764
##########
cpp/cmake_modules/ThirdpartyToolchain.cmake:
##########
@@ -4640,6 +4640,7 @@ function(build_orc)
set(ZLIB_HOME
${ZLIB_ROOT}
CACHE STRING "" FORCE)
+ unset(ZLIB_LIBRARY)
Review Comment:
I've added something:
```
# From CMake 3.21 onwards the set(CACHE) command does not remove any
normal
# variable of the same name from the current scope. We have to manually
remove
# the variable via unset to avoid ORC not finding the ZLIB_LIBRARY.
```
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