- add lzo-2.08-rhbz1309225.patch to avoid aliasing issues

OBS-URL: https://build.opensuse.org/package/show/Base:System/lzo?expand=0&rev=42

lzo-2.08-rhbz1309225.patch

@@ -0,0 +1,14 @@
+diff -up lzo-2.08/include/lzo/lzodefs.h.rhbz1309225 lzo-2.08/include/lzo/lzodefs.h
+--- lzo-2.08/include/lzo/lzodefs.h.rhbz1309225	2016-02-19 13:38:02.604220910 +0100
++++ lzo-2.08/include/lzo/lzodefs.h	2016-02-19 13:37:30.619073085 +0100
+@@ -1686,6 +1686,10 @@ extern "C" {
+ #  define __lzo_byte_struct_ma(s,n)     struct s { unsigned char a[n]; } __lzo_may_alias __attribute__((__packed__));
+ #endif
+ #endif
++#if (LZO_CC_GNUC >= 0x060000ul) && defined(__lzo_byte_struct_ma)
++#  undef __lzo_byte_struct
++#  define __lzo_byte_struct(s,n)        __lzo_byte_struct_ma(s,n)
++#endif
+ #if defined(__lzo_byte_struct) &&  !defined(__lzo_byte_struct_ma)
+ #  define __lzo_byte_struct_ma(s,n)     __lzo_byte_struct(s,n)
+ #endif

lzo.changes

@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Jan 26 08:33:22 UTC 2021 - Dirk Müller <dmueller@suse.com>
+
+- add lzo-2.08-rhbz1309225.patch to avoid aliasing issues 
+
 -------------------------------------------------------------------
 Wed Nov 20 09:04:53 UTC 2019 - Martin Liška <mliska@suse.cz>
 

lzo.spec

@@ -1,7 +1,7 @@
 #
 # spec file for package lzo
 #
-# Copyright (c) 2019 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -23,9 +23,10 @@ Release:        0
 Summary:        A Real-Time Data Compression Library
 License:        GPL-2.0-or-later
 Group:          Development/Libraries/C and C++
-URL:            http://www.oberhumer.com/opensource/lzo/
+URL:            https://www.oberhumer.com/opensource/lzo/
-Source:         http://www.oberhumer.com/opensource/%{name}/download/%{name}-%{version}.tar.gz
+Source:         https://www.oberhumer.com/opensource/%{name}/download/%{name}-%{version}.tar.gz
 Source2:        baselibs.conf
+Patch1:         https://src.fedoraproject.org/rpms/lzo/raw/master/f/lzo-2.08-rhbz1309225.patch
 BuildRequires:  gcc-c++
 BuildRequires:  pkgconfig
 
@@ -72,10 +73,11 @@ compression ratio.
 
 %prep
 %setup -q
+%patch1 -p1
 
 %build
 %global _lto_cflags %{_lto_cflags} -ffat-lto-objects
-export CFLAGS="%{optflags} -fvisibility=hidden -fno-strict-aliasing"
+export CFLAGS="%{optflags} -fvisibility=hidden"
 %configure --enable-shared \
            --enable-static \
            --disable-silent-rules \