https://bugs.gentoo.org/669096

--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -616,4 +616,4 @@ esac
 
-# These are the libraries checked by Readline.
-AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncursesw ncurses])
+# These are the libraries checked by Readline. Not really: readline does not know about *w libs.
+AC_SEARCH_LIBS(tgetent, [termcap tinfow tinfo curses ncursesw ncurses])
 
--- a/gdb/configure
+++ b/gdb/configure
@@ -8984,3 +8984,3 @@ esac
 
-# These are the libraries checked by Readline.
+# These are the libraries checked by Readline. Not really: readline does not know about *w libs.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing tgetent" >&5
@@ -9009,3 +9009,3 @@ return tgetent ();
 _ACEOF
-for ac_lib in '' termcap tinfo curses ncursesw ncurses; do
+for ac_lib in '' termcap tinfow tinfo curses ncursesw ncurses; do
   if test -z "$ac_lib"; then