--- wmmaiload-2.2.1.orig/wmmaiload/checkthread.c 2010-08-31 15:43:37.000000000 +0200 +++ wmmaiload-2.2.1/wmmaiload/checkthread.c.new 2010-08-31 15:43:46.000000000 +0200 @@ -101,14 +101,6 @@ #endif /* HAVE_MH */ -#ifndef _GNU_SOURCE -int isblank(int c) -{ - return (c == ' ' || c == '\t'); -} -#endif - - #ifdef HAVE_MBOX static Bool check_mbox(MailBox *box, time_t now) {