Improve lzfse SOVERSION patch

Use the ABI version (1) instead of the full version (1.0)
of the library, as suggested by Timo Röhling in
https://lists.debian.org/debian-devel/2023/11/msg00025.html

Try both SOVERSIONed and unversioned names, which should make
it possible to upstream this patch:
https://github.com/AsahiLinux/asahi-installer/pull/235

debian/patches/0001-Use-versioned-library-name-for-liblzfse.patch

-From: Tobias Heider <me@tobhe.de>
-Date: Wed, 1 Nov 2023 15:59:17 +0100
-Subject: Use versioned library name for liblzfse
-
----
- asahi_firmware/img4.py | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/asahi_firmware/img4.py b/asahi_firmware/img4.py
-index a7bbfa4..efe67a2 100644
---- a/asahi_firmware/img4.py
-+++ b/asahi_firmware/img4.py
-@@ -6,7 +6,7 @@ from ctypes import *
- __all__ = ["img4p_extract_compressed", "img4p_extract"]
- 
- def decode_lzfse_liblzfse(cdata, raw_size):
--    lzfse = CDLL("liblzfse.so")
-+    lzfse = CDLL("liblzfse.so.1.0")
- 
-     dest = create_string_buffer(raw_size)
-     decoded = lzfse.lzfse_decode_buffer(dest, raw_size, cdata, len(cdata), None)

debian/patches/0001-asahi_firmware.img4-Try-lzfse-SOVERSION-1-first.patch

+From 36c7be589d301252d2fca4cecb1554e0e30c9a35 Mon Sep 17 00:00:00 2001
+From: Andreas Henriksson <andreas@fatal.se>
+Date: Sat, 4 Nov 2023 22:31:22 +0100
+Subject: [PATCH] asahi_firmware.img4: Try lzfse SOVERSION 1 first
+
+Upstream lzfse library has no SOVERSION set, but distributions
+with library packaging guidelines wants them.
+
+Fedora[1][2] is apparently already using SOVERSION 1 (and patching this
+file using sed on package builds). Debian[3] is about to do the same.
+
+Try first to load liblzfse.so.1 and if not found, fall back on the
+unversioned soname as before. This should make everyone happy without
+having to patch it everywhere.
+
+[1]: https://src.fedoraproject.org/rpms/lzfse/blob/rawhide/f/60.patch
+[2]: https://src.fedoraproject.org/rpms/asahi-installer/blob/fb68ade87292d3210fbe8845da829add6b1187c4/f/asahi-installer.spec#_54
+[3]: https://salsa.debian.org/bananas-team/lzfse/-/blob/debian/unstable/debian/patches/0001-debian-set-library-SONAME.patch
+
+Signed-off-by: Andreas Henriksson <andreas@fatal.se>
+---
+ asahi_firmware/img4.py | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/asahi_firmware/img4.py b/asahi_firmware/img4.py
+index a7bbfa4..2e5dd44 100644
+--- a/asahi_firmware/img4.py
++++ b/asahi_firmware/img4.py
+@@ -6,7 +6,10 @@ from ctypes import *
+ __all__ = ["img4p_extract_compressed", "img4p_extract"]
+ 
+ def decode_lzfse_liblzfse(cdata, raw_size):
+-    lzfse = CDLL("liblzfse.so")
++    try:
++        lzfse = CDLL("liblzfse.so.1")
++    except OSError:
++        lzfse = CDLL("liblzfse.so")
+ 
+     dest = create_string_buffer(raw_size)
+     decoded = lzfse.lzfse_decode_buffer(dest, raw_size, cdata, len(cdata), None)
+-- 
+2.39.2
+

debian/patches/series

-0001-Use-versioned-library-name-for-liblzfse.patch
+0001-asahi_firmware.img4-Try-lzfse-SOVERSION-1-first.patch