From 048172c6797e0c2b3121e8b7d6b4f17a85676569 Mon Sep 17 00:00:00 2001
From: serge-sans-paille <sguelton@redhat.com>
Date: Thu, 8 Sep 2022 12:42:56 +0200
Subject: [PATCH] Install libunwindo.so.1 in %{_libdir}

Keep the unversioned name in a private location, but make sure the versioned
one live in a default location. That way we're still compatible with clang -unwindlib=libunwind
---
 llvm-libunwind.spec | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/llvm-libunwind.spec b/llvm-libunwind.spec
index 2767559..c93398f 100644
--- a/llvm-libunwind.spec
+++ b/llvm-libunwind.spec
@@ -8,7 +8,7 @@
 
 Name:       llvm-libunwind
 Version:    %{libunwind_version}%{?rc_ver:~rc%{rc_ver}}
-Release:    1%{?dist}
+Release:    2%{?dist}
 Summary:    LLVM libunwind
 
 License:    ASL 2.0 or NCSA or MIT
@@ -82,12 +82,22 @@ Documentation for LLVM libunwind
 
 %cmake_install
 
-# We can't install on default location because that would conflict with
+# We can't install the unversionned path on default location because that would conflict with
 # https://src.fedoraproject.org/rpms/libunwind
+#
+# The versionned path has a different soname (libunwind.so.1 compared to
+# libunwind.so.8) so they can live together in %{_libdir}
+#
 # ABI wise, even though llvm-libunwind's library is named libunwind, it doesn't
 # have the exact same ABI has gcc's libunwind (it actually provides a subset).
+rm %{buildroot}%{_libdir}/libunwind.so
 mkdir -p %{buildroot}/%{_libdir}/llvm-unwind/
-mv %{buildroot}%{_libdir}/libunwind* %{buildroot}/%{_libdir}/llvm-unwind/
+
+pushd %{buildroot}/%{_libdir}/llvm-unwind
+ln -s ../libunwind.so.1.0 libunwind.so
+popd
+
+
 
 # Same applies to the documentation
 mv %{buildroot}%{_docdir}/libunwind/libunwind %{buildroot}%{_docdir}/llvm-libunwind
@@ -100,10 +110,11 @@ mv %{buildroot}%{_docdir}/libunwind/libunwind %{buildroot}%{_docdir}/llvm-libunw
 
 %files
 %license LICENSE.TXT
-%dir %{_libdir}/llvm-unwind
-%{_libdir}/llvm-unwind/libunwind.so.*
+%{_libdir}/libunwind.so.1
+%{_libdir}/libunwind.so.1.0
 
 %files devel
+%dir %{_libdir}/llvm-unwind
 %{_libdir}/llvm-unwind/libunwind.so
 
 %files doc
@@ -112,6 +123,9 @@ mv %{buildroot}%{_docdir}/libunwind/libunwind %{buildroot}%{_docdir}/llvm-libunw
 %doc %{_docdir}/llvm-libunwind/html
 
 %changelog
+* Thu Sep 8 2022 sguelton@redhat.com - 14.0.5-2
+- Install versionned library in standard location
+
 * Mon Aug 29 2022 sguelton@redhat.com - 14.0.5-1
 - Update to LLVM 14.0.5