fix: support distro mpv headers in linux addon build

apps/electron-backend/build-embedded-mpv.js

@@ -76,6 +76,15 @@ function cleanOutput() {
     );
 }
 
+function cleanNativeBuildIntermediates() {
+    fs.rmSync(outputFile, { force: true });
+    fs.rmSync(path.join(outputDir, '.deps'), { recursive: true, force: true });
+    fs.rmSync(path.join(outputDir, 'obj.target'), {
+        recursive: true,
+        force: true,
+    });
+}
+
 function cleanDistNativeOutput() {
     fs.rmSync(distNativeDir, { recursive: true, force: true });
 }
@@ -441,6 +450,7 @@ function main() {
     log(
         `Building native addon against Electron ${electronVersion} using ${runtime.origin} runtime for ${targetPlatform}-${targetArch}...`
     );
+    cleanNativeBuildIntermediates();
     runNodeGyp('configure', env);
     runNodeGyp('build', env);
 

apps/electron-backend/native/src/embedded_mpv_wid_common.h

@@ -10,6 +10,41 @@
 
 #include <mpv/client.h>
 
+#if defined(IPTVNATOR_DYNAMIC_LIBMPV) && !defined(mpv_command_async)
+#define IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(name) \
+    MPV_SELECTANY decltype(&name) pfn_##name = nullptr;
+
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_command_async)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_command_node_async)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_create)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_error_string)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_initialize)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_observe_property)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_request_log_messages)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_set_option_string)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_set_property)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_set_property_async)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_terminate_destroy)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_wait_event)
+IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_wakeup)
+
+#undef IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL
+
+#define mpv_command_async pfn_mpv_command_async
+#define mpv_command_node_async pfn_mpv_command_node_async
+#define mpv_create pfn_mpv_create
+#define mpv_error_string pfn_mpv_error_string
+#define mpv_initialize pfn_mpv_initialize
+#define mpv_observe_property pfn_mpv_observe_property
+#define mpv_request_log_messages pfn_mpv_request_log_messages
+#define mpv_set_option_string pfn_mpv_set_option_string
+#define mpv_set_property pfn_mpv_set_property
+#define mpv_set_property_async pfn_mpv_set_property_async
+#define mpv_terminate_destroy pfn_mpv_terminate_destroy
+#define mpv_wait_event pfn_mpv_wait_event
+#define mpv_wakeup pfn_mpv_wakeup
+#endif
+
 #include <algorithm>
 #include <atomic>
 #include <chrono>

apps/electron-backend/src/app/services/embedded-mpv-native-source.spec.ts

@@ -207,6 +207,19 @@ describe('Embedded MPV native source recording invariants', () => {
         );
     });
 
+    it('keeps dynamic libmpv symbol declarations compatible with distro headers', () => {
+        expect(widCommonSource).toContain(
+            '#if defined(IPTVNATOR_DYNAMIC_LIBMPV) && !defined(mpv_command_async)'
+        );
+        expect(widCommonSource).toContain(
+            'IPTVNATOR_DECLARE_MPV_DYNAMIC_SYMBOL(mpv_command_async)'
+        );
+        expect(widCommonSource).toContain(
+            '#define mpv_command_async pfn_mpv_command_async'
+        );
+        expect(buildScriptSource).toContain('cleanNativeBuildIntermediates();');
+    });
+
     it('uses platform-specific embedded MPV runtime cache key inputs in CI', () => {
         expect(buildAndMakeWorkflowSource).toContain(
             "const targetPlatform = '${{ matrix.embedded_mpv_platform }}';"