From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Mon, 17 Aug 2020 12:59:27 +0000 (+0100)
Subject: hbytes.h: Add a missing `extern' on a data declaration
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=commitdiff_plain;h=071ce4c960a8ccdc1b8297e05cf6464c71f58494;p=chiark-tcl.git

hbytes.h: Add a missing `extern' on a data declaration

With GCC-10's changes to the default symbol resolution rules, the
absence leads to this error:
  /usr/bin/ld: hbytes.o:/<<PKGBUILDDIR>>/hbytes/hbytes.h:251: multiple definition of `cht_ulong_type'; chop.o:/<<PKGBUILDDIR>>/hbytes/hbytes.h:251: first defined here
(once per object file).

Closes: 957087
Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/hbytes/hbytes.h b/hbytes/hbytes.h
index 0ed871c..2e5d658 100644
--- a/hbytes/hbytes.h
+++ b/hbytes/hbytes.h
@@ -248,7 +248,7 @@ extern Tcl_ObjType cht_addrmap_type;
 
 /* from ulong.c */
 
-Tcl_ObjType cht_ulong_type;
+extern Tcl_ObjType cht_ulong_type;
 
 /* useful macros */