Merge remote-tracking branch 'tor-gitlab/mr/67' into maint-0.4.4

diff --cc src/lib/sandbox/sandbox.c
index 2b4181e7f859311e170498a9a8c1f60f3b801391,76aacb0834e364bcb8ba9ad96375f35933cf802d..066ecfe91596cfc860270066571d8c2ddb01a791
--- 1/src/lib/sandbox/sandbox.c
--- 2/src/lib/sandbox/sandbox.c
+++ b/src/lib/sandbox/sandbox.c
@@@ -458,7 -448,9 +462,9 @@@ is_libc_at_least(int major, int minor
      return 1;
    else
      return 0;
 -#else /* !(defined(CHECK_LIBC_VERSION)) */
 +#else /* !defined(CHECK_LIBC_VERSION) */
+   (void)major;
+   (void)minor;
    return 0;
  #endif /* defined(CHECK_LIBC_VERSION) */
  }