BUILD: Disable updates if no Sparkle implementation is available

Currently, --enable-release always enables updates even on unsupported platforms.
This additional check disables updates entirely if no proper sparkle implementation
is found.

Fixes #11217.

1 files changed, 1 insertions, 0 deletions

diff --git a/configure b/configure
index 146c4247f3..b4bffeb70c 100755
--- a/configure
+++ b/configure
@@ -5572,6 +5572,7 @@ if test "$_updates" = yes; then
 	if test "$_sparkle" = yes; then
 		echo "Sparkle"
 	else
+		_updates=no;
 		echo "$_updates"
 	fi
 else