diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1b48364..036ce69 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -148,41 +148,29 @@ endif()
 
 # TODO: find a better way to get these libraries version number (they can change between builds)
 if(APPLE)
-    execute_process(
-        COMMAND otool -L ${EXTERNAL_INSTALL_LOCATION}/lib/libOpenNMTTokenizer.dylib | grep "libicuuc" | sed -E "s|.*(libicuuc[^ ]*).*|\\1|"
-        OUTPUT_VARIABLE ICU_UC_LIB_NAME
-        OUTPUT_STRIP_TRAILING_WHITESPACE
-    )
-
-    message(STATUS "Extracted ICU UC library name: ${ICU_UC_LIB_NAME}")
-
-    execute_process(
-        COMMAND otool -L ${EXTERNAL_INSTALL_LOCATION}/lib/libOpenNMTTokenizer.dylib | grep "libicudata" | sed -E "s|.*(libicudata[^ ]*).*|\\1|"
-        OUTPUT_VARIABLE ICU_DATA_LIB_NAME
-        OUTPUT_STRIP_TRAILING_WHITESPACE
-    )
-
-    message(STATUS "Extracted ICU DATA library name: ${ICU_DATA_LIB_NAME}")
+    # Copy required dylibs to the build directory and adjust LC_LOAD_DYLIB path
+    add_custom_command(TARGET metaltranslate POST_BUILD
+        COMMAND bash -c "
+        ICU_UC_LIB_NAME=$(otool -L ${EXTERNAL_INSTALL_LOCATION}/lib/libOpenNMTTokenizer.dylib | grep 'libicuuc' | sed -E 's|.*(libicuuc[^ ]*).*|\\1|');
+        ICU_DATA_LIB_NAME=$(otool -L ${EXTERNAL_INSTALL_LOCATION}/lib/libOpenNMTTokenizer.dylib | grep 'libicudata' | sed -E 's|.*(libicudata[^ ]*).*|\\1|');
+        DNNL_LIB_NAME=$(otool -L ${EXTERNAL_INSTALL_LOCATION}/lib/libctranslate2.4.3.1.dylib | grep 'libdnnl' | sed -E 's|.*(libdnnl[^ ]*).*|\\1|');
 
-    execute_process(
-        COMMAND otool -L ${EXTERNAL_INSTALL_LOCATION}/lib/libctranslate2.4.3.1.dylib | grep "libicudata" | sed -E "s|.*(libdnnl[^ ]*).*|\\1|"
-        OUTPUT_VARIABLE DNNL_LIB_NAME
-        OUTPUT_STRIP_TRAILING_WHITESPACE
-    )
+        echo 'Extracted ICU UC library name: ${ICU_UC_LIB_NAME}';
+        echo 'Extracted ICU DATA library name: ${ICU_DATA_LIB_NAME}';
+        echo 'Extracted DNNL library name: ${DNNL_LIB_NAME}';
 
-    message(STATUS "Extracted DNNL library name: ${DNNL_LIB_NAME}")
 
-    # Copy required dylibs to the build directory and adjust LC_LOAD_DYLIB path
-    add_custom_command(TARGET metaltranslate POST_BUILD
-        COMMAND install_name_tool -change ${ONEDNN_ROOT}/lib/${DNNL_LIB_NAME} @rpath/libdnnl.3.dylib ${EXTERNAL_INSTALL_LOCATION}/lib/libctranslate2.4.3.1.dylib # change lib path of ctranslate2 lib
-        COMMAND install_name_tool -change ${ICU_LIBRARY_DIR}/${ICU_UC_LIB_NAME} @rpath/libicuuc.dylib ${EXTERNAL_INSTALL_LOCATION}/lib/libctranslate2.4.3.1.dylib
-        COMMAND install_name_tool -change ${ICU_LIBRARY_DIR}/${ICU_DATA_LIB_NAME} @rpath/libicudata.dylib ${EXTERNAL_INSTALL_LOCATION}/lib/libOpenNMTTokenizer.dylib
-        COMMAND install_name_tool -change ${ICU_LIBRARY_DIR}/${ICU_UC_LIB_NAME} @rpath/libicuuc.dylib ${EXTERNAL_INSTALL_LOCATION}/lib/libOpenNMTTokenizer.dylib
+        install_name_tool -change ${ONEDNN_ROOT}/lib/${DNNL_LIB_NAME} @rpath/libdnnl.3.dylib ${EXTERNAL_INSTALL_LOCATION}/lib/libctranslate2.4.3.1.dylib # change lib path of ctranslate2 lib
+        install_name_tool -change ${ICU_LIBRARY_DIR}/${ICU_UC_LIB_NAME} @rpath/libicuuc.dylib ${EXTERNAL_INSTALL_LOCATION}/lib/libctranslate2.4.3.1.dylib
+        install_name_tool -change ${ICU_LIBRARY_DIR}/${ICU_DATA_LIB_NAME} @rpath/libicudata.dylib ${EXTERNAL_INSTALL_LOCATION}/lib/libOpenNMTTokenizer.dylib
+        install_name_tool -change ${ICU_LIBRARY_DIR}/${ICU_UC_LIB_NAME} @rpath/libicuuc.dylib ${EXTERNAL_INSTALL_LOCATION}/lib/libOpenNMTTokenizer.dylib
 
         # copy files to build directory
-        COMMAND ${CMAKE_COMMAND} -E copy ${ONEDNN_ROOT}/lib/libdnnl.3.dylib $<TARGET_FILE_DIR:metaltranslate>
-        COMMAND ${CMAKE_COMMAND} -E copy ${ICU_LIBRARY_DIR}/libicuuc.dylib $<TARGET_FILE_DIR:metaltranslate>
-        COMMAND ${CMAKE_COMMAND} -E copy ${ICU_LIBRARY_DIR}/libicudata.dylib $<TARGET_FILE_DIR:metaltranslate>
+        ${CMAKE_COMMAND} -E copy ${ONEDNN_ROOT}/lib/libdnnl.3.dylib $<TARGET_FILE_DIR:metaltranslate>
+        ${CMAKE_COMMAND} -E copy ${ICU_LIBRARY_DIR}/libicuuc.dylib $<TARGET_FILE_DIR:metaltranslate>
+        ${CMAKE_COMMAND} -E copy ${ICU_LIBRARY_DIR}/libicudata.dylib $<TARGET_FILE_DIR:metaltranslate>
+        
+        "
         COMMENT "Adjusting LC_LOAD_DYLIB path for libdnnl"
     )
 elseif(UNIX)