--- libinklevel-0.9.2/configure	2021-08-26 09:59:39.790399964 +0900
+++ libinklevel-0.9.2/configure.new	2021-08-26 10:01:04.110403126 +0900
@@ -13296,7 +13296,7 @@
 
 ## Check for mandatory header files
 
-       for ac_header in arpa/inet.h fcntl.h netdb.h netinet/in.h \ sys/ioctl.h sys/socket.h sys/time.h sys/timeb.h wchar.h
+       for ac_header in arpa/inet.h fcntl.h netdb.h netinet/in.h \sys/ioctl.h sys/socket.h sys/time.h sys/timeb.h wchar.h
 do :
   as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"