Update Tremotesf to 2.5.1 (4043)

metadata/org.equeim.tremotesf.yml

@@ -563,15 +563,25 @@ Builds:
     submodules: true
     sudo:
       - apt-get update || apt-get update
-      - apt-get install -y g++
+      - apt-get install -y clang-7 libc++-7-dev libc++abi-7-dev ninja-build make patch
+        perl
     gradle:
       - fdroid
     prebuild: "\"$$SDK$$/tools/bin/sdkmanager\" 'cmake;3.18.1'"
+    scanignore:
+      - gradle-plugin/build
     scandelete:
       - 3rdparty
-    build: ANDROID_SDK_ROOT="$$SDK$$" ANDROID_NDK_ROOT="$$NDK$$" ../build-native.sh
-        -j $(nproc)
     ndk: r22b
+    gradleprops:
+      - org.equeim.tremotesf.use-cmake-from-sdk=true
+      - org.equeim.tremotesf.host-qt-cmake-flags=-DCMAKE_C_COMPILER=clang-7 -DCMAKE_CXX_COMPILER=clang++-7
+        -DCMAKE_CXX_FLAGS=-stdlib=libc++
+
+MaintainerNotes: |
+    We need host C++ compiler with C++17 support, so we use clang-7 as it is the only one available in Debian Stretch
+    Tremotesf also uses Gradle plugin in its build process, which is compiled from source on first Gradle invocation
+    Since it happens before scanning for binaries, we need to scanignore plugin's build directory
 
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