private-lib: fix double symlink

src/fldd/main.c

@@ -261,12 +261,21 @@ static void walk_directory(const char *dirname) {
 
  // check directory
  // entry->d_type field is supported in glibc since version 2.19 (Feb 2014)
- // we'll use stat to check for directories
+ // we'll use stat to check for directories using the real path
+ // (sometimes the path is a double symlink to a real file and stat would fail)
+ char *rpath = realpath(path, NULL);
+ if (!rpath) {
+ free(path);
+ continue;
+ }
+ free(path);
+
  struct stat s;
- if (stat(path, &s) == -1)
+ if (stat(rpath, &s) == -1)
  errExit("stat");
  if (S_ISDIR(s.st_mode))
- walk_directory(path);
+ walk_directory(rpath);
+ free(rpath);
  }
  closedir(dir);
  }