kumquat-buildroot/package/squashfs/0001-squashfs-tools-fix-build-failure-against-gcc-10.patch
Peter Seiderer 8d7b714027 package/squashfs: fix host compile multiple definitions
Add upstream patch to fix squashfs-tools build failures because
of missing external declaration for fwriter_buffer and
bwriter_buffer.

Fixes:

  - http://autobuild.buildroot.net/results/6789b668898245926e0a3a3e7caf823dff515d71

  /usr/bin/ld: read_fs.o:(.bss+0x0): multiple definition of `fwriter_buffer'; mksquashfs.o:(.bss+0x400c90): first defined here
  /usr/bin/ld: read_fs.o:(.bss+0x8): multiple definition of `bwriter_buffer'; mksquashfs.o:(.bss+0x400c98): first defined here

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2020-05-10 09:51:57 +02:00

50 lines
1.7 KiB
Diff

From e1cdcfd94172a0b1ba4c9df70f4d69a41c687404 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Sun, 26 Jan 2020 18:35:13 +0000
Subject: [PATCH] squashfs-tools: fix build failure against gcc-10
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
On gcc-10 (and gcc-9 -fno-common) build fails as:
```
cc ... -o mksquashfs
ld: read_fs.o:(.bss+0x0):
multiple definition of `fwriter_buffer'; mksquashfs.o:(.bss+0x400c90): first defined here
ld: read_fs.o:(.bss+0x8):
multiple definition of `bwriter_buffer'; mksquashfs.o:(.bss+0x400c98): first defined here
```
gcc-10 will change the default from -fcommon to fno-common:
https://gcc.gnu.org/PR85678.
The error also happens if CFLAGS=-fno-common passed explicitly.
Reported-by: Toralf Förster
Bug: https://bugs.gentoo.org/706456
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
[Upstream: https://github.com/plougher/squashfs-tools/commit/fe2f5da4b0f8994169c53e84b7cb8a0feefc97b5.patch]
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
squashfs-tools/mksquashfs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/squashfs-tools/mksquashfs.h b/squashfs-tools/mksquashfs.h
index 1beefef..b650306 100644
--- a/squashfs-tools/mksquashfs.h
+++ b/squashfs-tools/mksquashfs.h
@@ -143,7 +143,7 @@ struct append_file {
#endif
extern struct cache *reader_buffer, *fragment_buffer, *reserve_cache;
-struct cache *bwriter_buffer, *fwriter_buffer;
+extern struct cache *bwriter_buffer, *fwriter_buffer;
extern struct queue *to_reader, *to_deflate, *to_writer, *from_writer,
*to_frag, *locked_fragment, *to_process_frag;
extern struct append_file **file_mapping;
--
2.26.2