message: Xcode: silence GettextTools no-symbols warning
  Xcode 10.2 now detects that the dummy binary doesn't actually contain
  anything useful, so we need to expose a non-hidden symbol to avoid the
  warning.
diff: "DEBUG=1",
  "$(inherited)",
  );
  + GCC_SYMBOLS_PRIVATE_EXTERN = NO;
  INFOPLIST_FILE = "macos/GettextTools-Info.plist";
  INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Bundles";
  PRODUCT_BUNDLE_IDENTIFIER = "net.poedit.Poedit.${PRODUCT_NAME:rfc1034identifier}";
  GCC_C_LANGUAGE_STANDARD = gnu99;
  GCC_PRECOMPILE_PREFIX_HEADER = NO;
  GCC_PREFIX_HEADER = "";
  + GCC_SYMBOLS_PRIVATE_EXTERN = NO;
  INFOPLIST_FILE = "macos/GettextTools-Info.plist";
  INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Bundles";
  PRODUCT_BUNDLE_IDENTIFIER = "net.poedit.Poedit.${PRODUCT_NAME:rfc1034identifier}";
  