diff --git a/boost.changes b/boost.changes
index cc1ecc6..eb44d4f 100644
--- a/boost.changes
+++ b/boost.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Feb 24 10:19:36 UTC 2025 - Jan Engelhardt <jengelh@inai.de>
+
+- Modernize specfile: use ldconfig_scriptlets
+- Remove idempotent %if..%endif guards
+
 -------------------------------------------------------------------
 Thu Feb 20 11:25:55 UTC 2025 - Nicolas Morey <nicolas.morey@suse.com>
 
diff --git a/boost.spec b/boost.spec
index 04563d7..a674ee2 100644
--- a/boost.spec
+++ b/boost.spec
@@ -368,7 +368,6 @@ This package contains all that is needed to develop/compile
 applications that use the Boost C++ libraries. For documentation see
 the documentation packages (html, man or pdf).
 
-%if %{with hpc}
 %package     -n %{package_name}-python3
 Summary:        Boost.MPI Python 3.x serialization library
 Group:          System/Libraries
@@ -377,7 +376,6 @@ Requires:       %{package_name}
 %description -n %{package_name}-python3
 This package contains the Boost.MPI Python 3.x serialization
 interface.
-%endif
 
 %package     -n boost%{library_version}-jam
 Summary:        A Boost Make Replacement
@@ -1638,108 +1636,55 @@ EOF
 %endif
 
 %if %{build_base}
-%post -n libboost_atomic%{library_version} -p /sbin/ldconfig
-%post -n libboost_container%{library_version} -p /sbin/ldconfig
-%post -n libboost_context%{library_version} -p /sbin/ldconfig
-%post -n libboost_contract%{library_version} -p /sbin/ldconfig
-%post -n libboost_coroutine%{library_version} -p /sbin/ldconfig
-%post -n libboost_date_time%{library_version} -p /sbin/ldconfig
-%post -n libboost_fiber%{library_version} -p /sbin/ldconfig
-%post -n libboost_filesystem%{library_version} -p /sbin/ldconfig
-%post -n libboost_iostreams%{library_version} -p /sbin/ldconfig
-%post -n libboost_log%{library_version} -p /sbin/ldconfig
-%post -n libboost_test%{library_version} -p /sbin/ldconfig
-%post -n libboost_process%{library_version} -p /sbin/ldconfig
-%post -n libboost_program_options%{library_version} -p /sbin/ldconfig
-%post -n libboost_regex%{library_version} -p /sbin/ldconfig
-%post -n libboost_serialization%{library_version} -p /sbin/ldconfig
-%post -n libboost_thread%{library_version} -p /sbin/ldconfig
-%post -n libboost_type_erasure%{library_version} -p /sbin/ldconfig
-%post -n libboost_json%{library_version} -p /sbin/ldconfig
-%post -n libboost_charconv%{library_version} -p /sbin/ldconfig
-%post -n libboost_math%{library_version} -p /sbin/ldconfig
-%post -n libboost_nowide%{library_version} -p /sbin/ldconfig
-%post -n libboost_graph%{library_version} -p /sbin/ldconfig
-%post -n libboost_stacktrace%{library_version} -p /sbin/ldconfig
-%post -n libboost_system%{library_version} -p /sbin/ldconfig
-%post -n libboost_wave%{library_version} -p /sbin/ldconfig
-%post -n libboost_url%{library_version} -p /sbin/ldconfig
-%post -n libboost_random%{library_version} -p /sbin/ldconfig
-%post -n libboost_chrono%{library_version} -p /sbin/ldconfig
-%post -n libboost_locale%{library_version} -p /sbin/ldconfig
-%post -n libboost_timer%{library_version} -p /sbin/ldconfig
+%ldconfig_scriptlets -n libboost_atomic%{library_version}
+%ldconfig_scriptlets -n libboost_container%{library_version}
+%ldconfig_scriptlets -n libboost_context%{library_version}
+%ldconfig_scriptlets -n libboost_contract%{library_version}
+%ldconfig_scriptlets -n libboost_coroutine%{library_version}
+%ldconfig_scriptlets -n libboost_date_time%{library_version}
+%ldconfig_scriptlets -n libboost_fiber%{library_version}
+%ldconfig_scriptlets -n libboost_filesystem%{library_version}
+%ldconfig_scriptlets -n libboost_iostreams%{library_version}
+%ldconfig_scriptlets -n libboost_log%{library_version}
+%ldconfig_scriptlets -n libboost_test%{library_version}
+%ldconfig_scriptlets -n libboost_process%{library_version}
+%ldconfig_scriptlets -n libboost_program_options%{library_version}
+%ldconfig_scriptlets -n libboost_regex%{library_version}
+%ldconfig_scriptlets -n libboost_serialization%{library_version}
+%ldconfig_scriptlets -n libboost_thread%{library_version}
+%ldconfig_scriptlets -n libboost_type_erasure%{library_version}
+%ldconfig_scriptlets -n libboost_json%{library_version}
+%ldconfig_scriptlets -n libboost_charconv%{library_version}
+%ldconfig_scriptlets -n libboost_math%{library_version}
+%ldconfig_scriptlets -n libboost_nowide%{library_version}
+%ldconfig_scriptlets -n libboost_graph%{library_version}
+%ldconfig_scriptlets -n libboost_stacktrace%{library_version}
+%ldconfig_scriptlets -n libboost_system%{library_version}
+%ldconfig_scriptlets -n libboost_wave%{library_version}
+%ldconfig_scriptlets -n libboost_url%{library_version}
+%ldconfig_scriptlets -n libboost_random%{library_version}
+%ldconfig_scriptlets -n libboost_chrono%{library_version}
+%ldconfig_scriptlets -n libboost_locale%{library_version}
+%ldconfig_scriptlets -n libboost_timer%{library_version}
 %else
 
 %if %{with python3}
-%post -n libboost_python-py3-%{library_version} -p /sbin/ldconfig
-%post -n libboost_numpy-py3-%{library_version} -p /sbin/ldconfig
+%ldconfig_scriptlets -n libboost_python-py3-%{library_version}
+%ldconfig_scriptlets -n libboost_numpy-py3-%{library_version}
 %endif
 
 %if %{with mpi}
-%post -n libboost_mpi%{library_version} -p /sbin/ldconfig
-%post -n libboost_graph_parallel%{library_version} -p /sbin/ldconfig
+%ldconfig_scriptlets -n libboost_mpi%{library_version}
+%ldconfig_scriptlets -n libboost_graph_parallel%{library_version}
 
 %if %{with python3}
-%post -n libboost_mpi_python-py3-%{library_version} -p /sbin/ldconfig
+%ldconfig_scriptlets -n libboost_mpi_python-py3-%{library_version}
 %endif
 %endif
 
 %endif
 %if %{with hpc}
-%post -n %base_name -p /sbin/ldconfig
-%endif
-
-%if %{build_base}
-%postun -n libboost_atomic%{library_version} -p /sbin/ldconfig
-%postun -n libboost_container%{library_version} -p /sbin/ldconfig
-%postun -n libboost_context%{library_version} -p /sbin/ldconfig
-%postun -n libboost_contract%{library_version} -p /sbin/ldconfig
-%postun -n libboost_coroutine%{library_version} -p /sbin/ldconfig
-%postun -n libboost_date_time%{library_version} -p /sbin/ldconfig
-%postun -n libboost_fiber%{library_version} -p /sbin/ldconfig
-%postun -n libboost_filesystem%{library_version} -p /sbin/ldconfig
-%postun -n libboost_iostreams%{library_version} -p /sbin/ldconfig
-%postun -n libboost_log%{library_version} -p /sbin/ldconfig
-%postun -n libboost_test%{library_version} -p /sbin/ldconfig
-%postun -n libboost_process%{library_version} -p /sbin/ldconfig
-%postun -n libboost_program_options%{library_version} -p /sbin/ldconfig
-%postun -n libboost_regex%{library_version} -p /sbin/ldconfig
-%postun -n libboost_serialization%{library_version} -p /sbin/ldconfig
-%postun -n libboost_thread%{library_version} -p /sbin/ldconfig
-%postun -n libboost_type_erasure%{library_version} -p /sbin/ldconfig
-%postun -n libboost_json%{library_version} -p /sbin/ldconfig
-%postun -n libboost_charconv%{library_version} -p /sbin/ldconfig
-%postun -n libboost_math%{library_version} -p /sbin/ldconfig
-%postun -n libboost_nowide%{library_version} -p /sbin/ldconfig
-%postun -n libboost_graph%{library_version} -p /sbin/ldconfig
-%postun -n libboost_stacktrace%{library_version} -p /sbin/ldconfig
-%postun -n libboost_system%{library_version} -p /sbin/ldconfig
-%postun -n libboost_wave%{library_version} -p /sbin/ldconfig
-%postun -n libboost_url%{library_version} -p /sbin/ldconfig
-%postun -n libboost_random%{library_version} -p /sbin/ldconfig
-%postun -n libboost_chrono%{library_version} -p /sbin/ldconfig
-%postun -n libboost_locale%{library_version} -p /sbin/ldconfig
-%postun -n libboost_timer%{library_version} -p /sbin/ldconfig
-%else
-
-%if %{with python3}
-%postun -n libboost_python-py3-%{library_version} -p /sbin/ldconfig
-%postun -n libboost_numpy-py3-%{library_version} -p /sbin/ldconfig
-%endif
-
-%if %{with mpi}
-%postun -n libboost_mpi%{library_version} -p /sbin/ldconfig
-%postun -n libboost_graph_parallel%{library_version} -p /sbin/ldconfig
-
-%if %{with python3}
-%postun -n libboost_mpi_python-py3-%{library_version} -p /sbin/ldconfig
-%endif
-%endif
-
-%endif
-
-%if %{with hpc}
-%postun -n %{base_name} -p /sbin/ldconfig
+%ldconfig_scriptlets -n %base_name
 %endif
 
 %if %{with hpc}