1 files changed, 62 insertions, 0 deletions
diff --git a/win/configure b/win/configure
index b8f441a..80fb8e6 100755
--- a/win/configure
+++ b/win/configure
@@ -2869,6 +2869,68 @@ _ACEOF
 
 fi
 
+# See if MWMO_ALERTABLE is missing from winuser.h
+# This is known to be a problem with Mingw.
+
+echo "$as_me:$LINENO: checking for MWMO_ALERTABLE in winuser.h" >&5
+echo $ECHO_N "checking for MWMO_ALERTABLE in winuser.h... $ECHO_C" >&6
+if test "${tcl_cv_mwmo_alertable+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#undef WIN32_LEAN_AND_MEAN
+
+int
+main ()
+{
+
+  int i = MWMO_ALERTABLE;
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  tcl_cv_mwmo_alertable=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+tcl_cv_mwmo_alertable=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+
+fi
+echo "$as_me:$LINENO: result: $tcl_cv_mwmo_alertable" >&5
+echo "${ECHO_T}$tcl_cv_mwmo_alertable" >&6
+if test "$tcl_cv_mwmo_alertable" = "no"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_NO_MWMO_ALERTABLE 1
+_ACEOF
+
+fi
+
 #--------------------------------------------------------------------
 # Determines the correct binary file extension (.o, .obj, .exe etc.)
 #--------------------------------------------------------------------