[kudu] 01/02: [cmake_modules] add '-o /dev/null' to the linker command

[al...@apache.org]

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alexey pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/kudu.git

commit fe2ba596dda3872789de8d42ccc2b82b6db42d47
Author: Alexey Serbin <al...@apache.org>
AuthorDate: Thu Apr 7 15:06:51 2022 -0700

    [cmake_modules] add '-o /dev/null' to the linker command
    
    I noticed that every time I run cmake in the build directory
    on macOS, a.out file appears.  It turned out it's generated
    by the GET_LINKER_VERSION procedure from KuduLinker.cmake.
    
    This patch add '-o /dev/null' to the command that determines
    the version of the linker to avoid generating a.out file
    in the current working directory.
    
    Change-Id: Id095902679a2f0e2648c45bcd4024fc734b9a1e7
    Reviewed-on: http://gerrit.cloudera.org:8080/18394
    Tested-by: Alexey Serbin <al...@apache.org>
    Reviewed-by: Andrew Wong <aw...@cloudera.com>
---
 cmake_modules/KuduLinker.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmake_modules/KuduLinker.cmake b/cmake_modules/KuduLinker.cmake
index d8dacfc21..0725bb03d 100644
--- a/cmake_modules/KuduLinker.cmake
+++ b/cmake_modules/KuduLinker.cmake
@@ -113,7 +113,7 @@ function(GET_LINKER_VERSION)
     set(ld_version_flag "--version")
   endif()
   execute_process(
-    COMMAND ${CMAKE_CXX_COMPILER} "-Wl,${ld_version_flag}" ${ARGN}
+    COMMAND ${CMAKE_CXX_COMPILER} "-Wl,${ld_version_flag}" -o /dev/null ${ARGN}
     ERROR_VARIABLE LINKER_STDERR
     OUTPUT_VARIABLE LINKER_STDOUT
     RESULT_VARIABLE LINKER_EXITCODE)