--- configure.ac.orig
+++ configure.ac
@@ -178,7 +178,8 @@ AM_CPPFLAGS="$AM_CPPFLAGS -D_REENTRANT"
 
 dnl Check for programs.
 AC_ISC_POSIX
-AC_PROG_CC
+AC_PROG_CC_STDC
+AC_USE_SYSTEM_EXTENSIONS
 AC_PROG_GCC_TRADITIONAL
 AM_PROG_CC_C_O
 
@@ -384,7 +385,7 @@ dnl Check for termcap
 if test "$with_readline" = yes; then
 	OLD_LIBS="$LIBS"
 	LIBS=""
-	AC_SEARCH_LIBS([tgetent], [tinfo ncurses curses termcap termlib],
+	AC_SEARCH_LIBS([tgetent], [tinfo ncursesw curses termcap termlib],
 		[PARTED_LIBS="$PARTED_LIBS $LIBS"],
 		[AC_MSG_ERROR(dnl
 [termcap could not be found which is required for the