Gate all references to iOS 26 APIs

Author: TimOliver

TORoundedButton/TORoundedButton.h

@@ -89,8 +89,10 @@ IB_DESIGNABLE @interface TORoundedButton : UIControl
 /// When `backgroundStyle` is set to `.blur`, the specific blur style to apply.
 @property (nonatomic, assign) UIBlurEffectStyle blurStyle;
 
+#ifdef __IPHONE_26_0
 /// When `backgroundStyle` is set to `.glass`, the specific glass style to apply.
 @property (nonatomic, assign) UIGlassEffectStyle glassStyle API_AVAILABLE(ios(26.0));
+#endif
 
 /// The text that is displayed in center of the button (Default is nil).
 /// This adds an internally controlled label view to the main content view.

TORoundedButton/TORoundedButton.m

@@ -184,13 +184,15 @@ - (UIView *)_makeBackgroundViewWithStyle:(TORoundedButtonBackgroundStyle)style T
     if (!TORoundedButtonIsSolidBackground(style)) {
         // Create a glass or blur style based on the associated style
         UIVisualEffect *effect = nil;
+#ifdef __IPHONE_26_0
         if (@available(iOS 26.0, *)) {
             if (style == TORoundedButtonBackgroundStyleGlass) {
                 UIGlassEffect *const glassEffect = [UIGlassEffect effectWithStyle:_glassStyle];
                 glassEffect.tintColor = self.tintColor;
                 effect = glassEffect;
             }
         }
+#endif
         if (effect == nil) {
             UIBlurEffect *const blurEffect = [UIBlurEffect effectWithStyle:_blurStyle];
             effect = blurEffect;
@@ -204,11 +206,15 @@ - (UIView *)_makeBackgroundViewWithStyle:(TORoundedButtonBackgroundStyle)style T
     backgroundView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
 
     backgroundView.clipsToBounds = !TORoundedButtonIsSolidBackground(style);
+#ifdef __IPHONE_26_0
     if (@available(iOS 26.0, *)) {
         backgroundView.cornerConfiguration = _cornerConfiguration;
     } else {
         backgroundView.layer.cornerRadius = _cornerRadius;
     }
+#else
+    backgroundView.layer.cornerRadius = _cornerRadius;
+#endif
 
 #ifdef __IPHONE_13_0
     if (@available(iOS 13.0, *)) { backgroundView.layer.cornerCurve = kCACornerCurveContinuous; }
@@ -613,6 +619,7 @@ - (void)setBlurStyle:(UIBlurEffectStyle)blurStyle {
     [blurView setEffect:[UIBlurEffect effectWithStyle:_blurStyle]];
 }
 
+#ifdef __IPHONE_26_0
 - (void)setGlassStyle:(UIGlassEffectStyle)glassStyle {
     if (_glassStyle == glassStyle) { return; }
     _glassStyle = glassStyle;
@@ -627,6 +634,7 @@ - (void)setGlassStyle:(UIGlassEffectStyle)glassStyle {
     UIVisualEffectView *const effectView = (UIVisualEffectView *)_backgroundView;
     [effectView setEffect:glassEffect];
 }
+#endif
 
 - (void)setEnabled:(BOOL)enabled {
     [super setEnabled:enabled];