diff --git a/libs/libc/libc.csv b/libs/libc/libc.csv
index 89cd0ca379..ef8c4d1340 100644
--- a/libs/libc/libc.csv
+++ b/libs/libc/libc.csv
@@ -70,6 +70,10 @@
 "fprintf","stdio.h","defined(CONFIG_FILE_STREAM)","int","FAR FILE *","FAR const IPTR char *","..."
 "fputc","stdio.h","defined(CONFIG_FILE_STREAM)","int","int","FAR FILE *"
 "fputs","stdio.h","defined(CONFIG_FILE_STREAM)","int","FAR const IPTR char *","FAR FILE *"
+"fputwc","wchar.h","defined(CONFIG_FILE_STREAM)","wint_t","wchar_t","FAR FILE *"
+"fputwc_unlocked","wchar.h","defined(CONFIG_FILE_STREAM)","wint_t","wchar_t","FAR FILE *"
+"fputws","wchar.h","defined(CONFIG_FILE_STREAM)","int","FAR const wchar_t *","FAR FILE *"
+"fputws_unlocked","wchar.h","defined(CONFIG_FILE_STREAM)","int","FAR const wchar_t *","FAR FILE *"
 "fread","stdio.h","defined(CONFIG_FILE_STREAM)","size_t","FAR void *","size_t","size_t","FAR FILE *"
 "free","stdlib.h","","void","FAR void *"
 "freeaddrinfo","netdb.h","defined(CONFIG_LIBC_NETDB)","void","FAR struct addrinfo *"
@@ -224,6 +228,9 @@
 "pthread_setspecific","pthread.h","!defined(CONFIG_DISABLE_PTHREAD)","int","pthread_key_t","FAR const void *"
 "pthread_yield","pthread.h","!defined(CONFIG_DISABLE_PTHREAD)","void"
 "puts","stdio.h","defined(CONFIG_FILE_STREAM)","int","FAR const IPTR char *"
+"putwc","wchar.h","defined(CONFIG_FILE_STREAM)","wint_t","wchar_t","FAR FILE *"
+"putwc_unlocked","wchar.h","defined(CONFIG_FILE_STREAM)","wint_t","wchar_t","FAR FILE *"
+"putwchar","wchar.h","","wint_t","wchar_t"
 "pwritev","sys/uio.h","","ssize_t","int","FAR const struct iovec *","int","off_t"
 "qsort","stdlib.h","","void","FAR void *","size_t","size_t","int(*)(FAR const void *","FAR const void *)"
 "raise","signal.h","","int","int"
@@ -332,24 +339,40 @@
 "vsscanf","stdio.h","","int","FAR const char *","FAR const IPTR char *","va_list"
 "vsyslog","syslog.h","","void","int","FAR const IPTR char *","va_list"
 "wcrtomb","wchar.h","","size_t","FAR char *","wchar_t","FAR mbstate_t *"
+"wcscat","wchar.h","","FAR wchar_t *","FAR wchar_t *","FAR const wchar_t *"
+"wcschr","wchar.h","","FAR wchar_t *","FAR const wchar_t *","wchar_t"
 "wcscmp","wchar.h","","int","FAR const wchar_t *","FAR const wchar_t *"
 "wcscoll","wchar.h","","int","FAR const wchar_t *","FAR const wchar_t *"
+"wcscpy","wchar.h","","FAR wchar_t *","FAR wchar_t *","FAR const wchar_t *"
+"wcscspn","wchar.h","","size_t","FAR const wchar_t *","FAR const wchar_t *"
 "wcsftime","wchar.h","","size_t","FAR wchar_t *","size_t","FAR const wchar_t *","FAR const struct tm *"
+"wcslcat","wchar.h","","size_t","FAR wchar_t *","FAR const wchar_t *","size_t"
+"wcsncat","wchar.h","","FAR wchar_t *","FAR wchar_t *","FAR const wchar_t *","size_t"
+"wcsncmp","wchar.h","","int","FAR const wchar_t *","FAR const wchar_t *","size_t"
+"wcsncpy","wchar.h","","FAR wchar_t *","FAR wchar_t *","FAR const wchar_t *","size_t"
 "wcslcpy","wchar.h","","size_t","FAR wchar_t *","FAR const wchar_t *","size_t"
 "wcslen","wchar.h","","size_t","FAR const wchar_t *"
 "wcsnrtombs","wchar.h","","size_t","FAR char *","FAR const wchar_t **","size_t","size_t","FAR mbstate_t *"
+"wcspbrk","wchar.h","","FAR wchar_t *","FAR const wchar_t *","FAR const wchar_t *"
+"wcsrchr","wchar.h","","FAR wchar_t *","FAR const wchar_t *","wchar_t"
+"wcsspn","wchar.h","","size_t","FAR const wchar_t *","FAR const wchar_t *"
+"wcsstr","wchar.h","","FAR wchar_t *","FAR const wchar_t *","FAR const wchar_t *"
 "wcsrtombs","wchar.h","","size_t","FAR char *","FAR const wchar_t **","size_t","FAR mbstate_t *"
 "wcstod","wchar.h","","double","FAR const wchar_t *","FAR wchar_t **"
 "wcstof","wchar.h","","float","FAR const wchar_t *","FAR wchar_t **"
+"wcstok","wchar.h","","FAR wchar_t *","FAR wchar_t *","FAR const wchar_t *","FAR wchar_t **"
 "wcstol","wchar.h","","long int","FAR const wchar_t *","FAR wchar_t **","int"
 "wcstold","wchar.h","","long double","FAR const wchar_t *","FAR wchar_t **"
 "wcstoll","wchar.h","","long long int","FAR const wchar_t *","FAR wchar_t **","int"
 "wcstombs","stdlib.h","","size_t","FAR char *","FAR const wchar_t *","size_t"
 "wcstoul","wchar.h","","unsigned long int","FAR const wchar_t *","FAR wchar_t **","int"
+"wcswcs","wchar.h","","FAR wchar_t *","FAR const wchar_t *","FAR const wchar_t *"
+"wcswidth","wchar.h","","int","FAR const wchar_t *","size_t"
 "wcsxfrm","wchar.h","","size_t","FAR wchar_t *","FAR const wchar_t *","size_t"
 "wctob","wchar.h","","int","wint_t"
 "wctomb","stdlib.h","","int","FAR char *","wchar_t"
 "wctype","wctype.h","","wctype_t","FAR const char *"
+"wcwidth","wchar.h","","int","wchar_t"
 "wmemchr","wchar.h","","FAR wchar_t *","FAR const wchar_t *","wchar_t","size_t"
 "wmemcmp","wchar.h","","int","FAR const wchar_t *","FAR const wchar_t *","size_t"
 "wmemcpy","wchar.h","","FAR wchat_t *","FAR wchar_t *","FAR const wchar_t *","size_t"