diff --git a/include/ctype.h b/include/ctype.h
index c24c026f9b..9b9463f336 100644
--- a/include/ctype.h
+++ b/include/ctype.h
@@ -32,6 +32,26 @@
 
 #include <nuttx/compiler.h>
 
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define isalnum_l(c, l)  isalnum(c)
+#define isalpha_l(c, l)  isalpha(c)
+#define isascii_l(c, l)  isascii(c)
+#define isblank_l(c, l)  isblank(c)
+#define iscntrl_l(c, l)  iscntrl(c)
+#define isdigit_l(c, l)  isdigit(c)
+#define isgraph_l(c, l)  isgraph(c)
+#define islower_l(c, l)  islower(c)
+#define isprint_l(c, l)  isprint(c)
+#define ispunct_l(c, l)  ispunct(c)
+#define isspace_l(c, l)  isspace(c)
+#define isupper_l(c, l)  isupper(c)
+#define isxdigit_l(c, l) isxdigit(c)
+#define tolower_l(c, l)  tolower(c)
+#define toupper_l(c, l)  toupper(c)
+
 /****************************************************************************
  * Inline Functions
  ****************************************************************************/
diff --git a/include/stdlib.h b/include/stdlib.h
index 690b29448a..93ac5fd845 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -66,6 +66,12 @@
 #  define environ get_environ_ptr()
 #endif
 
+#define strtof_l(s, e, l)      strtof(s, e)
+#define strtod_l(s, e, l)      strtod(s, e)
+#define strtold_l(s, e, l)     strtold(s, e)
+#define strtoll_l(s, e, b, l)  strtoll(s, e, b)
+#define strtoull_l(s, e, b, l) strtoull(s, e, b)
+
 /****************************************************************************
  * Public Type Definitions
  ****************************************************************************/
diff --git a/include/string.h b/include/string.h
index d90e112490..ef331bd9d8 100644
--- a/include/string.h
+++ b/include/string.h
@@ -35,6 +35,14 @@
 
 #include <nuttx/b2c.h>
 
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define strcoll_l(s1, s2, l)    strcoll(s1, s2)
+#define strerror_l(e, l)        strerror(e)
+#define strxfrm_l(s1, s2, n, l) strxfrm(s1, s2, n)
+
 /****************************************************************************
  * Public Function Prototypes
  ****************************************************************************/
diff --git a/include/strings.h b/include/strings.h
index 2ceba61642..f0c216db32 100644
--- a/include/strings.h
+++ b/include/strings.h
@@ -53,6 +53,9 @@
 #define bzero(s,n)       (void)memset(s,0,n)
 #endif
 
+#define strcasecmp_l(s1, s2, l)     strcasecmp(s1, s2)
+#define strncasecmp_l(s1, s2, n, l) strncasecmp(s1, s2, n)
+
 /****************************************************************************
  * Inline Functions
  ****************************************************************************/
diff --git a/include/time.h b/include/time.h
index 6bca579102..8f045e3afe 100644
--- a/include/time.h
+++ b/include/time.h
@@ -91,9 +91,10 @@
 
 #define TIME_UTC           1
 
-/* Redirect the timelocal */
+/* Redirect the timelocal and strftime_l */
 
-#define timelocal         mktime
+#define timelocal                 mktime
+#define strftime_l(s, m, f, t, l) strftime(s, m, f, t)
 
 /********************************************************************************
  * Public Types
diff --git a/include/wchar.h b/include/wchar.h
index 8883414c80..805d4de0c0 100644
--- a/include/wchar.h
+++ b/include/wchar.h
@@ -65,6 +65,14 @@
 #  define NULL ((FAR void *)0)
 #endif
 
+#define wcsftime_l(s, m, f, t, l)   wcsftime(s, m, f, t)
+#define wcscasecmp_l(s1, s2, l)     wcscasecmp(s1, s2)
+#define wcsncasecmp_l(s1, s2, n, l) wcsncasecmp(s1, s2, n)
+#define wcscoll_l(s1, s2, l)        wcscoll(s1, s2)
+#define wcstold_l(s, e, l)          wcstold(s, e)
+#define wcstoull_l(s, e, l)         wcstoull(s, e)
+#define wcsxfrm_l(s1, s2, n, l)     wcsxfrm(s1, s2, n)
+
 /****************************************************************************
  * Type Definitions
  ****************************************************************************/
diff --git a/include/wctype.h b/include/wctype.h
index ec619cdbc6..6336292b88 100644
--- a/include/wctype.h
+++ b/include/wctype.h
@@ -52,6 +52,25 @@
 #define WC_UPPER        11
 #define WC_XDIGIT       12
 
+#define iswalnum_l(c, l)     iswalnum(c)
+#define iswalpha_l(c, l)     iswalpha(c)
+#define iswblank_l(c, l)     iswblank(c)
+#define iswcntrl_l(c, l)     iswcntrl(c)
+#define iswdigit_l(c, l)     iswdigit(c)
+#define iswgraph_l(c, l)     iswgraph(c)
+#define iswlower_l(c, l)     iswlower(c)
+#define iswprint_l(c, l)     iswprint(c)
+#define iswpunct_l(c, l)     iswpunct(c)
+#define iswspace_l(c, l)     iswspace(c)
+#define iswupper_l(c, l)     iswupper(c)
+#define iswxdigit_l(c, l)    iswxdigit(c)
+#define iswctype_l(c, d, l)  iswctype(c, d)
+#define towlower_l(c, l)     towlower(c)
+#define towupper_l(c, l)     towupper(c)
+#define towctrans_l(c, d, l) towctrans(c, d)
+#define wctrans_l(p, l)      wctrans(p)
+#define wctype_l(p, l)       wctype(p)
+
 /****************************************************************************
  * Public Types
  ****************************************************************************/