From 0d994b227a3623907f2bba111beb70af98c0915b Mon Sep 17 00:00:00 2001
From: fwg-cag <fwg-cag@outlook.com>
Date: Wed, 22 Mar 2023 11:33:51 +0100
Subject: [PATCH] FDroid: Declare optional libraries w/o risk of breaking
 pre-19.1 builds

---
 FDroid/Android.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/FDroid/Android.mk b/FDroid/Android.mk
index 9db520a..3f0430a 100644
--- a/FDroid/Android.mk
+++ b/FDroid/Android.mk
@@ -5,5 +5,9 @@ LOCAL_SRC_FILES := FDroid.apk
 LOCAL_MODULE_CLASS := APPS
 LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
 LOCAL_CERTIFICATE := PRESIGNED
+# these lines may break builds before 19.1 so make them conditional
+ifneq ($(call math_gt_or_eq, $(PLATFORM_SDK_VERSION), 31),)
+LOCAL_OPTIONAL_USES_LIBRARIES := androidx.window.extensions androidx.window.sidecar
+endif
 LOCAL_PRODUCT_MODULE := true
 include $(BUILD_PREBUILT)