From 297dc41e2c6e84efac092e2d6f69824cb3b6d98d Mon Sep 17 00:00:00 2001
From: Glenn Morris <rgm@gnu.org>
Date: Thu, 18 Jan 2018 18:09:15 -0500
Subject: [PATCH] * configure.ac (emacs_config_features): Add threads.

---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index ac158bd2d0b..f9c7bb76e58 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5364,12 +5364,13 @@ emacs_config_features=
 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
   GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
   LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT OLDXMENU X11 NS MODULES \
-  XWIDGETS LIBSYSTEMD CANNOT_DUMP LCMS2; do
+  THREADS XWIDGETS LIBSYSTEMD CANNOT_DUMP LCMS2; do
 
     case $opt in
       CANNOT_DUMP) eval val=\${$opt} ;;
       NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
       TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
+      THREADS) val=${threads_enabled} ;;
       *) eval val=\${HAVE_$opt} ;;
     esac
     case x$val in
-- 
2.39.2