Add upstream patch fixing a Boost.Asio bug

Upstream patch in question (present in boost 1.76 but not 1.75):
b5a8065ecc

In passing fix the %patch directives to be compatible with RPM 4.20.

Resolves: RHEL-67973

boost-1.75-asio-fix.patch

@@ -0,0 +1,29 @@
+From 296746ce9469210fae520db31b07ccb31a6affce Mon Sep 17 00:00:00 2001
+From: Christopher Kohlhoff <chris@kohlhoff.com>
+Date: Wed, 3 Mar 2021 18:50:31 +1100
+Subject: [PATCH] The executor must be copied when an I/O object is
+ move-assigned.
+
+The moved-from I/O object needs to be left in the same state as if
+constructed with a valid executor but without a resource.
+---
+ boost/asio/detail/io_object_impl.hpp | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/boost/asio/detail/io_object_impl.hpp b/boost/asio/detail/io_object_impl.hpp
+index 54a622d..7f2f36c 100644
+--- a/boost/asio/detail/io_object_impl.hpp
++++ b/boost/asio/detail/io_object_impl.hpp
+@@ -99,8 +99,7 @@ public:
+       service_->move_assign(implementation_,
+           *other.service_, other.implementation_);
+       executor_.~executor_type();
+-      new (&executor_) executor_type(
+-          std::move(other.executor_));
++      new (&executor_) executor_type(other.executor_);
+       service_ = other.service_;
+     }
+     return *this;
+-- 
+2.47.0
+

boost.spec

@@ -42,7 +42,7 @@ Name: boost
 %global real_name boost
 Summary: The free peer-reviewed portable C++ source libraries
 Version: 1.75.0
-Release: 8%{?dist}
+Release: 9%{?dist}
 License: Boost and MIT and Python
 
 # Replace each . with _ in %%{version}
@@ -157,6 +157,10 @@ Patch94: boost-1.73-locale-empty-vector.patch
 # https://github.com/boostorg/build/issues/696
 Patch95: boost-1.75.0-boost-build-fix.patch
 
+# https://issues.redhat.com/browse/RHEL-67973
+# https://github.com/chriskohlhoff/asio/issues/790
+Patch98: boost-1.75-asio-fix.patch
+
 %bcond_with tests
 %bcond_with docs_generated
 
@@ -672,15 +676,16 @@ a number of significant features and is now developed independently.
 %setup -q -n %{toplev_dirname}
 find ./boost -name '*.hpp' -perm /111 | xargs chmod a-x
 
-%patch15 -p0
+%patch -P15 -p0
-%patch51 -p1
+%patch -P51 -p1
-%patch96 -p1
+%patch -P96 -p1
-%patch97 -p1
+%patch -P97 -p1
-%patch83 -p1
+%patch -P83 -p1
-%patch88 -p1
+%patch -P88 -p1
-%patch93 -p1
+%patch -P93 -p1
-%patch94 -p1
+%patch -P94 -p1
-%patch95 -p1
+%patch -P95 -p1
+%patch -P98 -p1
 
 %build
 %set_build_flags
@@ -1282,6 +1287,10 @@ fi
 %{_mandir}/man1/b2.1*
 
 %changelog
+* Fri Nov 22 2024 Patrick Palka <ppalka@redhat.com> - 1.75.0-9
+- Apply upstream Boost.Asio patch to resolve RHEL-67973
+- Fix %patch directive compatibility with RPM 4.20
+
 * Fri Jun 24 2022 Jonathan Wakely <jwakely@redhat.com> - 1.75.0-8
 - Restore Provides for boost-python3-devel