Fix for DEV-35401 that makes the copy linux only and doesn't hurt mac build

To be reviewed by Mani

indra/llcommon/CMakeLists.txt

@@ -246,18 +246,20 @@ if(LLCOMMON_LINK_SHARED)
         set_target_properties(llcommon PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${SHARED_LIB_STAGING_DIR})
     endif(SHARED_LIB_STAGING_DIR)
 
-    get_target_property(LLCOMMON_PATH llcommon LOCATION)
-    get_filename_component(LLCOMMON_FILE ${LLCOMMON_PATH} NAME)
-    add_custom_command(
-        TARGET llcommon POST_BUILD
-        COMMAND ${CMAKE_COMMAND}
-        ARGS
-          -E
-          copy_if_different
-          ${LLCOMMON_FILE}
-          ${SHARED_LIB_STAGING_DIR}/${CMAKE_CFG_INTDIR}/${LLCOMMON_FILE}
-        COMMENT "Copying llcommon to the staging folder."
-        )
+    if(LINUX)
+        get_target_property(LLCOMMON_PATH llcommon LOCATION)
+        get_filename_component(LLCOMMON_FILE ${LLCOMMON_PATH} NAME)
+        add_custom_command(
+            TARGET llcommon POST_BUILD
+            COMMAND ${CMAKE_COMMAND}
+            ARGS
+              -E
+              copy_if_different
+              ${LLCOMMON_FILE}
+              ${SHARED_LIB_STAGING_DIR}/${CMAKE_CFG_INTDIR}/${LLCOMMON_FILE}
+            COMMENT "Copying llcommon to the staging folder."
+            )
+    endif(LINUX)
 
 else(LLCOMMON_LINK_SHARED)
     add_library (llcommon ${llcommon_SOURCE_FILES})