diff --git a/libs/libc/machine/renesas/Kconfig b/libs/libc/machine/renesas/Kconfig
index 626f04fbcc4..a08fda831ca 100644
--- a/libs/libc/machine/renesas/Kconfig
+++ b/libs/libc/machine/renesas/Kconfig
@@ -3,7 +3,7 @@
 # see the file kconfig-language.txt in the NuttX tools repository.
 #
 
-#if ARCH_RENESAS_RX
-#source "libs/libc/machine/renesas/rx/Kconfig"
-#endif
+if ARCH_RENESAS_RX
+source "libs/libc/machine/renesas/rx/Kconfig"
+endif
 
diff --git a/libs/libc/machine/renesas/rx/CMakeLists.txt b/libs/libc/machine/renesas/rx/CMakeLists.txt
deleted file mode 100644
index 5f88d2dfe5e..00000000000
--- a/libs/libc/machine/renesas/rx/CMakeLists.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-# ##############################################################################
-# libs/libc/machine/renesas/rx/CMakeLists.txt
-#
-# SPDX-License-Identifier: Apache-2.0
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more contributor
-# license agreements.  See the NOTICE file distributed with this work for
-# additional information regarding copyright ownership.  The ASF licenses this
-# file to you under the Apache License, Version 2.0 (the "License"); you may not
-# use this file except in compliance with the License.  You may obtain a copy of
-# the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
-# License for the specific language governing permissions and limitations under
-# the License.
-#
-# ##############################################################################
diff --git a/libs/libc/machine/renesas/rx/Kconfig b/libs/libc/machine/renesas/rx/Kconfig
index cb611de9906..f72f3c094ce 100644
--- a/libs/libc/machine/renesas/rx/Kconfig
+++ b/libs/libc/machine/renesas/rx/Kconfig
@@ -2,6 +2,3 @@
 # For a description of the syntax of this configuration file,
 # see the file kconfig-language.txt in the NuttX tools repository.
 #
-
-if ARCH_RENESAS_RX
-endif
diff --git a/libs/libc/machine/renesas/rx/Make.defs b/libs/libc/machine/renesas/rx/Make.defs
index 7418badeeea..dc015f06be0 100644
--- a/libs/libc/machine/renesas/rx/Make.defs
+++ b/libs/libc/machine/renesas/rx/Make.defs
@@ -23,6 +23,3 @@
 ifeq ($(CONFIG_ARCH_SETJMP_H),y)
 ASRCS += arch_setjmp.S
 endif
-
-DEPPATH += --dep-path machine/renesas/rx/gnu
-VPATH += :machine/renesas/rx/gnu
diff --git a/libs/libc/machine/renesas/rx/gnu/arch_setjmp.S b/libs/libc/machine/renesas/rx/arch_setjmp.S
similarity index 98%
rename from libs/libc/machine/renesas/rx/gnu/arch_setjmp.S
rename to libs/libc/machine/renesas/rx/arch_setjmp.S
index f50719ccebe..e4842a10321 100644
--- a/libs/libc/machine/renesas/rx/gnu/arch_setjmp.S
+++ b/libs/libc/machine/renesas/rx/arch_setjmp.S
@@ -1,5 +1,5 @@
 /****************************************************************************
- * libs/libc/machine/renesas/rx/gnu/arm_setjmp.S
+ * libs/libc/machine/renesas/rx/arm_setjmp.S
  *
  * SPDX-License-Identifier: Apache-2.0
  *