[master] 9c27209 Add 'extern' entries for these two copyrights, to make it patently obvious that we want the to stick around, even if unused.

[Poul-Henning Kamp]

commit 9c27209064322c85851bacd10c408a73625cdbfd
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Tue Nov 12 22:05:50 2013 +0000

    Add 'extern' entries for these two copyrights, to make it
    patently obvious that we want the to stick around, even if unused.

diff --git a/lib/libvgz/deflate.c b/lib/libvgz/deflate.c
index f6de44a..24cfb77 100644
--- a/lib/libvgz/deflate.c
+++ b/lib/libvgz/deflate.c
@@ -51,6 +51,7 @@
 
 #include "deflate.h"
 
+extern const char deflate_copyright[];
 const char deflate_copyright[] =
    " deflate 1.2.8 Copyright 1995-2013 Jean-loup Gailly and Mark Adler ";
 /*
diff --git a/lib/libvgz/inftrees.c b/lib/libvgz/inftrees.c
index 44d89cf..9d75fd2 100644
--- a/lib/libvgz/inftrees.c
+++ b/lib/libvgz/inftrees.c
@@ -8,6 +8,7 @@
 
 #define MAXBITS 15
 
+extern const char inflate_copyright[];
 const char inflate_copyright[] =
    " inflate 1.2.8 Copyright 1995-2013 Mark Adler ";
 /*