aedi: patch fluidsynth sf3 support

detection of sndfile vorbis/mpeg support is a bit broken right now
* native target doesn't detect it because of missing flac symbols, can be fixes with `-lFLAC` linker option
* cross-compiled target doesn't detect it even with the given linker option

aedi/target/library_tier2.py

@@ -55,7 +55,8 @@ def __init__(self, name='fluidsynth'):
     def prepare_source(self, state: BuildState):
         state.download_source(
             'https://github.com/FluidSynth/fluidsynth/archive/refs/tags/v2.3.5.tar.gz',
-            'f89e8e983ecfb4a5b4f5d8c2b9157ed18d15ed2e36246fa782f18abaea550e0d')
+            'f89e8e983ecfb4a5b4f5d8c2b9157ed18d15ed2e36246fa782f18abaea550e0d',
+            patches='fluidsynth-sf3-support')
 
     def configure(self, state: BuildState):
         opts = state.options

patch/fluidsynth-sf3-support.diff

@@ -0,0 +1,11 @@
+--- a/cmake_admin/FindSndFile.cmake
++++ b/cmake_admin/FindSndFile.cmake
+@@ -70,7 +70,7 @@
+
+ # Check the features SndFile was built with
+ # 2024-01-02: Recent versions of libsndfile don't seem to provide a pkgconfig file and older version who did are lacking private libraries like OGG.
+-if(FALSE) #PC_SNDFILE_FOUND
++if(TRUE) #PC_SNDFILE_FOUND
+   if("vorbis" IN_LIST PC_SNDFILE_STATIC_LIBRARIES)
+     set(SndFile_WITH_EXTERNAL_LIBS TRUE)
+   endif()