Description: Fix ftbfs with GCC-10

Author: Sudip Mukherjee <sudipm.mukherjee@gmail.com>

Bug-Debian: https://bugs.debian.org/957200

Forwarded: no

---

--- fdutils-5.5-20060227.orig/src/superformat.h

+++ fdutils-5.5-20060227/src/superformat.h

@@ -97,7 +97,7 @@ int compute_all_sequences(struct params

 void compute_track0_sequence(struct params *fd);

 int calc_skews(struct params *fd0, struct params *fd, int n);

 extern int verbosity;

-int header_size;

-int index_size;

+extern int header_size;

+extern int index_size;

 #endif