Fix update alert

- UPDATE_ALERT is not defined for DEVELOP, instead of being commented out manually.
- Added button prompt to the alert, removed "Press a key" text from the alert

src/doomdef.h

@@ -126,8 +126,8 @@ extern char logfilename[1024];
 // the other options the same.
 
 // Comment out this line to completely disable update alerts (recommended for testing, but not for release)
-#ifndef BETAVERSION
-//#define UPDATE_ALERT
+#if !defined(BETAVERSION) && !defined(DEVELOP)
+#define UPDATE_ALERT
 #endif
 
 // The string used in the alert that pops up in the event of an update being available.
@@ -137,9 +137,7 @@ extern char logfilename[1024];
 "Please visit kartkrew.org to download it.\n"\
 "\n"\
 "You are using version: %s\n"\
-"The newest version is: %s\n"\
-"\n"\
-"(Press a key)\n"
+"The newest version is: %s\n"
 
 // For future use, the codebase is the version of SRB2 that the modification is based on,
 // and should not be changed unless you have merged changes between versions of SRB2

src/menus/play-online-server-browser.c

@@ -205,7 +205,7 @@ static void M_CheckMODVersion(int id)
 #ifdef HAVE_THREADS
 		I_lock_mutex(&k_menu_mutex);
 #endif
-		M_StartMessage("Game Update", updatestring, NULL, MM_NOTHING, NULL, NULL);
+		M_StartMessage("Game Update", updatestring, NULL, MM_NOTHING, NULL, "Return to Menu");
 #ifdef HAVE_THREADS
 		I_unlock_mutex(k_menu_mutex);
 #endif