diff --git a/libs/libc/machine/Kconfig b/libs/libc/machine/Kconfig
index 5b0021836f..8628534ff7 100644
--- a/libs/libc/machine/Kconfig
+++ b/libs/libc/machine/Kconfig
@@ -112,6 +112,22 @@ config LIBC_ARCH_STRRCHR
 	bool
 	default n
 
+config LIBC_ARCH_STRCAT
+	bool
+	default n
+
+config LIBC_ARCH_STRNCAT
+	bool
+	default n
+
+config LIBC_ARCH_STRCASECMP
+	bool
+	default n
+
+config LIBC_ARCH_STRNCASECMP
+	bool
+	default n
+
 config LIBC_ARCH_ELF
 	bool
 	default n
diff --git a/libs/libc/string/lib_strcasecmp.c b/libs/libc/string/lib_strcasecmp.c
index b1be6b07ab..1717682c03 100644
--- a/libs/libc/string/lib_strcasecmp.c
+++ b/libs/libc/string/lib_strcasecmp.c
@@ -31,7 +31,7 @@
  * Public Functions
  ****************************************************************************/
 
-#ifndef CONFIG_ARCH_STRCASECMP
+#ifndef CONFIG_LIBC_ARCH_STRCASECMP
 #undef strcasecmp /* See mm/README.txt */
 int strcasecmp(FAR const char *cs, FAR const char *ct)
 {
diff --git a/libs/libc/string/lib_strcat.c b/libs/libc/string/lib_strcat.c
index 33f5a97b73..e6c3495549 100644
--- a/libs/libc/string/lib_strcat.c
+++ b/libs/libc/string/lib_strcat.c
@@ -30,7 +30,7 @@
  * Public Functions
  ****************************************************************************/
 
-#ifndef CONFIG_ARCH_STRCAT
+#ifndef CONFIG_LIBC_ARCH_STRCAT
 #undef strcat /* See mm/README.txt */
 FAR char *strcat(FAR char *dest, FAR const char *src)
 {
diff --git a/libs/libc/string/lib_strncasecmp.c b/libs/libc/string/lib_strncasecmp.c
index 6aeb57273c..b2e8261e43 100644
--- a/libs/libc/string/lib_strncasecmp.c
+++ b/libs/libc/string/lib_strncasecmp.c
@@ -32,7 +32,7 @@
  * Public Functions
  ****************************************************************************/
 
-#ifndef CONFIG_ARCH_STRNCASECMP
+#ifndef CONFIG_LIBC_ARCH_STRNCASECMP
 #undef strncasecmp /* See mm/README.txt */
 int strncasecmp(FAR const char *cs, FAR const char *ct, size_t nb)
 {
diff --git a/libs/libc/string/lib_strncat.c b/libs/libc/string/lib_strncat.c
index 23ae796054..aa05d4c871 100644
--- a/libs/libc/string/lib_strncat.c
+++ b/libs/libc/string/lib_strncat.c
@@ -30,7 +30,7 @@
  * Public Functions
  ****************************************************************************/
 
-#ifndef CONFIG_ARCH_STRNCAT
+#ifndef CONFIG_LIBC_ARCH_STRNCAT
 #undef strncat /* See mm/README.txt */
 FAR char *strncat(FAR char *dest, FAR const char *src, size_t n)
 {