kou feedback

Author: WillAyd

ci/scripts/cpp_build.sh

@@ -282,13 +282,12 @@ else
     ${source_dir}
 fi
 
+ARROW_BUILD_PARALLEL=${CMAKE_BUILD_PARALLEL_LEVEL:-${ARROW_BUILD_PARALLEL:-$[${n_jobs} + 1]}}
 if [ "${ARROW_USE_MESON:-OFF}" = "ON" ]; then
-    time {
-      meson compile -j $[${n_jobs} + 1];
-      meson install;
-  }
+  time meson compile -j ${ARROW_BUILD_PARALLEL}
+  meson install
 else
-  export CMAKE_BUILD_PARALLEL_LEVEL=${CMAKE_BUILD_PARALLEL_LEVEL:-$[${n_jobs} + 1]}
+  export CMAKE_BUILD_PARALLEL_LEVEL=${ARROW_BUILD_PARALLEL}
   time cmake --build . --target install
 fi