Use manual TDLib bundle for app releases

CMakeLists.txt

@@ -11,6 +11,8 @@ find_program(CLANG_FORMAT_BIN clang-format)
 include(FetchContent)
 
 option(TELEGRAM_TUI_USE_SYSTEM_TDLIB "Use an installed TDLib package instead of fetching it." OFF)
+set(TELEGRAM_TUI_TDLIB_ROOT ""
+    CACHE PATH "Path to a prebuilt TDLib root containing include/ and lib/ directories.")
 
 set(CURSES_NEED_WIDE TRUE)
 find_package(Curses REQUIRED)
@@ -46,7 +48,27 @@ configure_file(
   @ONLY
 )
 
-if(TELEGRAM_TUI_USE_SYSTEM_TDLIB)
+if(TELEGRAM_TUI_TDLIB_ROOT)
+  find_path(TELEGRAM_TUI_TDLIB_INCLUDE_DIR
+    NAMES td/telegram/td_json_client.h
+    PATHS "${TELEGRAM_TUI_TDLIB_ROOT}/include"
+    NO_DEFAULT_PATH
+    REQUIRED
+  )
+  find_library(TELEGRAM_TUI_TDLIB_LIBRARY
+    NAMES tdjson libtdjson.so
+    PATHS "${TELEGRAM_TUI_TDLIB_ROOT}/lib"
+    NO_DEFAULT_PATH
+    REQUIRED
+  )
+
+  add_library(TdJsonPrebuilt SHARED IMPORTED GLOBAL)
+  set_target_properties(TdJsonPrebuilt PROPERTIES
+    IMPORTED_LOCATION "${TELEGRAM_TUI_TDLIB_LIBRARY}"
+    INTERFACE_INCLUDE_DIRECTORIES "${TELEGRAM_TUI_TDLIB_INCLUDE_DIR}"
+  )
+  add_library(Td::TdJson ALIAS TdJsonPrebuilt)
+elseif(TELEGRAM_TUI_USE_SYSTEM_TDLIB)
   find_package(Td REQUIRED)
 else()
   set(TD_ENABLE_JNI OFF CACHE BOOL "" FORCE)