Sync minimally w/ glibc, else cpio fails building

include/ctype.h

@@ -247,13 +247,13 @@ __exctype (_tolower);
 
 # ifdef __USE_EXTERN_INLINES
 extern __inline int
-tolower (int __c) __THROW
+__NTH (tolower (int __c))
 {
   return __UCLIBC_CTYPE_IN_TO_DOMAIN(__c) ? (__UCLIBC_CTYPE_TOLOWER)[__c] : __c;
 }
 
 extern __inline int
-toupper (int __c) __THROW
+__NTH (toupper (int __c))
 {
   return __UCLIBC_CTYPE_IN_TO_DOMAIN(__c) ? (__UCLIBC_CTYPE_TOUPPER)[__c] : __c;
 }