(arrow) branch main updated: GH-44994: [C++][CMake] Use librt only for Linux (#44984)

[kou]

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in repository https://gitbox.apache.org/repos/asf/arrow.git


The following commit(s) were added to refs/heads/main by this push:
     new e8a85dcb0d GH-44994: [C++][CMake] Use librt only for Linux (#44984)
e8a85dcb0d is described below

commit e8a85dcb0d147a4768d141fff6312b1eaf1a27a2
Author: Brad Smith <b...@comstyle.com>
AuthorDate: Tue Dec 10 20:54:42 2024 -0500

    GH-44994: [C++][CMake] Use librt only for Linux (#44984)
    
    ### Rationale for this change
    
    OpenBSD does not have `librt.so`.
    
    ### What changes are included in this PR?
    
    Use `librt.so` only for Linux
    
    ### Are these changes tested?
    
    Yes.
    
    ### Are there any user-facing changes?
    
    Yes.
    
    * GitHub Issue: #44994
    
    Lead-authored-by: Brad Smith <b...@comstyle.com>
    Co-authored-by: Sutou Kouhei <k...@cozmixng.org>
    Signed-off-by: Sutou Kouhei <k...@clear-code.com>
---
 cpp/src/arrow/CMakeLists.txt | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/cpp/src/arrow/CMakeLists.txt b/cpp/src/arrow/CMakeLists.txt
index fac4d67c79..6e2294371e 100644
--- a/cpp/src/arrow/CMakeLists.txt
+++ b/cpp/src/arrow/CMakeLists.txt
@@ -166,8 +166,7 @@ if(WIN32)
   list(APPEND ARROW_SYSTEM_LINK_LIBS "ws2_32")
 endif()
 
-if(NOT WIN32 AND NOT APPLE)
-  # Pass -lrt on Linux only
+if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
   list(APPEND ARROW_SYSTEM_LINK_LIBS rt)
 endif()