diff --git a/scripts/setupvars/setupvars.sh b/scripts/setupvars/setupvars.sh
index 3cdf4987d73..c9bcc61c643 100755
--- a/scripts/setupvars/setupvars.sh
+++ b/scripts/setupvars/setupvars.sh
@@ -4,12 +4,12 @@
 # SPDX-License-Identifier: Apache-2.0
 
 abs_path () {
-    path=$(eval echo "$1")
-    directory=$(dirname "$path")
-    echo "$(cd "$directory" || exit; pwd -P)/$(basename "$path")";
+    script_path=$(eval echo "$1")
+    directory=$(dirname "$script_path")
+    echo "$(cd "$directory" || exit; pwd -P)";
 }
 
-SCRIPT_DIR="$( cd "$( dirname "$(abs_path "${BASH_SOURCE[0]}")" )" >/dev/null 2>&1 && pwd )"
+SCRIPT_DIR="$(abs_path "${BASH_SOURCE[0]}")" >/dev/null 2>&1
 INSTALLDIR="${SCRIPT_DIR}"
 export INTEL_OPENVINO_DIR="$INSTALLDIR"
 
@@ -121,7 +121,12 @@ check_python_version () {
         "${PYTHON_VERSION_MAJOR}.${MAX_SUPPORTED_PYTHON_VERSION_MINOR} (64-bit) from https://www.python.org/downloads/"
         return 0
     fi
-    python_bitness=$(python"$python_version" -c 'import sys; print(64 if sys.maxsize > 2**32 else 32)')
+    if command -v python"$python_version" > /dev/null 2>&1; then
+        python_interp=python"$python_version"
+    else
+        python_interp=python"$python_version_major"
+    fi
+    python_bitness=$("$python_interp" -c 'import sys; print(64 if sys.maxsize > 2**32 else 32)')
 
     if [ "$python_bitness" != "" ] && [ "$python_bitness" != "64" ] && [ "$OS_NAME" != "Raspbian" ]; then
         echo "[setupvars.sh] WARNING: 64 bitness for Python $python_version is required"
@@ -144,7 +149,7 @@ check_python_version () {
             echo "[setupvars.sh] WARNING: OpenVINO Python environment does not set properly"
         fi
     fi
-} 
+}
 
 python_version_to_check="$python_version"
 if [ -z "$python_version" ]; then
diff --git a/src/bindings/python/src/compatibility/openvino/cmake/CythonConfig.cmake b/src/bindings/python/src/compatibility/openvino/cmake/CythonConfig.cmake
index 73a4f21f871..05f75ceeb51 100644
--- a/src/bindings/python/src/compatibility/openvino/cmake/CythonConfig.cmake
+++ b/src/bindings/python/src/compatibility/openvino/cmake/CythonConfig.cmake
@@ -36,7 +36,8 @@ if( PYTHONINTERP_FOUND )
   file(TO_CMAKE_PATH "$ENV{HOME}" ENV_HOME)
   find_host_program( CYTHON_EXECUTABLE
     NAMES cython cython.bat cython3
-    HINTS ${_python_path} ${ENV_HOME}/.local/bin $ENV{HOMEBREW_OPT}/cython/bin
+    HINTS ${_python_path} ${ENV_HOME}/.local/bin $ENV{HOMEBREW_OPT}/cython/bin 
+          ${ENV_HOME}/Library/Python/${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}/bin
     )
 else()
   find_host_program( CYTHON_EXECUTABLE
diff --git a/src/bindings/python/src/compatibility/openvino/inference_engine/CMakeLists.txt b/src/bindings/python/src/compatibility/openvino/inference_engine/CMakeLists.txt
index 7c503d6070f..cfeb78aa1c3 100644
--- a/src/bindings/python/src/compatibility/openvino/inference_engine/CMakeLists.txt
+++ b/src/bindings/python/src/compatibility/openvino/inference_engine/CMakeLists.txt
@@ -22,6 +22,9 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
     ie_add_compiler_flags(/wd4267)
     ie_add_compiler_flags(/wd4244)
 endif()
+if (OV_COMPILER_IS_CLANG OR CMAKE_COMPILER_IS_GNUCXX)
+    ie_add_compiler_flags(-Wno-undef)
+endif()
 if(UNUSED_BUT_SET_VARIABLE_SUPPORTED)
     ie_add_compiler_flags(-Wno-unused-but-set-variable)
 endif()