cryptsetup: fix unused variable (#6833)

When building without veracrypt, gcc warns

    ../src/cryptsetup/cryptsetup.c:55:13: warning: ‘arg_tcrypt_veracrypt’ defined but not used [-Wunused-variable]
      static bool arg_tcrypt_veracrypt = false;

Fix this by conditionalizing the declaration.

diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c
index 08ed7e5..e1e1a96 100644 (file)
--- a/src/cryptsetup/cryptsetup.c
+++ b/src/cryptsetup/cryptsetup.c
@@ -52,7 +52,9 @@ static bool arg_verify = false;
 static bool arg_discards = false;
 static bool arg_tcrypt_hidden = false;
 static bool arg_tcrypt_system = false;
+#ifdef CRYPT_TCRYPT_VERA_MODES
 static bool arg_tcrypt_veracrypt = false;
+#endif
 static char **arg_tcrypt_keyfiles = NULL;
 static uint64_t arg_offset = 0;
 static uint64_t arg_skip = 0;