Adjust libmpq file I/O buffer size for 3DS

3rdParty/libmpq/CMakeLists.txt

@@ -26,3 +26,7 @@ target_include_directories(libmpq PUBLIC ${libmpq_SOURCE_DIR})
 target_include_directories(libmpq PRIVATE ${CMAKE_CURRENT_LIST_DIR})
 
 target_link_libraries(libmpq PRIVATE ZLIB::ZLIB BZip2::BZip2)
+
+if(LIBMPQ_FILE_BUFFER_SIZE)
+  target_compile_definitions(libmpq PRIVATE "LIBMPQ_FILE_BUFFER_SIZE=${LIBMPQ_FILE_BUFFER_SIZE}")
+endif()

CMake/ctr/n3ds_defs.cmake

@@ -6,6 +6,7 @@ set(DEVILUTIONX_SYSTEM_LIBFMT OFF)
 set(DEVILUTIONX_STATIC_LIBSODIUM ON)
 set(DEVILUTIONX_STATIC_LIBFMT ON)
 set(DISABLE_ZERO_TIER ON)
+set(LIBMPQ_FILE_BUFFER_SIZE 32768)
 set(USE_SDL1 ON)
 set(PREFILL_PLAYER_NAME ON)