Add kernel-headers subpackage

SPECS/raspberrypi2.spec

@@ -27,6 +27,8 @@ ExclusiveArch: aarch64
 %define with_tools     %{?_without_tools:     0} %{?!_without_tools:     1}
 # firmware
 %define with_firmware  %{?_without_firmware:  0} %{?!_without_firmware:  1}
+# kernel-headers
+%define with_headers   %{?_without_headers:   0} %{?!_without_headers:   1}
 
 Name:           raspberrypi%{rpisuffix}
 Version:        %{kversion}.%{patchlevel}
@@ -56,6 +58,9 @@ BuildRequires: openssl-devel
 # kernel-tools
 BuildRequires: asciidoc
 %endif
+%if %{with_headers}
+BuildRequires: rsync
+%endif
 
 %description
 Specific kernel and bootcode for Raspberry Pi
@@ -142,6 +147,20 @@ This package contains the GPU firmware for the Raspberry Pi BCM2835 SOC
 including the kernel bootloader.
 %endif
 
+%if %{with_headers}
+%package kernel%{?ksuffix}-headers
+Obsoletes: kernel-headers < %{version}
+Provides: kernel-headers = %{version}-%{release}
+Summary:	Header files for the Linux kernel for use by glibc
+
+%description kernel%{?ksuffix}-headers
+Kernel-cross-headers includes the C header files that specify the interface
+between the Linux kernel and userspace libraries and programs.  The
+header files define structures and constants that are needed for
+building most standard programs and are also needed for rebuilding the
+cross-glibc package.
+%endif
+
 %prep
 %setup -q -n linux-stable_%{version_tag}
 %patch100 -p1
@@ -290,6 +309,14 @@ install -m755 page_owner_sort %{buildroot}%{_bindir}/page_owner_sort
 popd
 %endif
 
+%if %{with_headers}
+%{__make} ARCH=%{Arch} INSTALL_HDR_PATH=%{buildroot}/usr headers_install
+
+find %{buildroot}/usr/include \
+    \( -name .install -o -name .check -o \
+       -name ..install.cmd -o -name ..check.cmd \) -delete
+%endif
+
 %if %{with_tools}
 %post kernel%{?ksuffix}-tools
 %systemd_post cpupower.service
@@ -393,7 +420,18 @@ cp $(ls -1 /boot/config-kernel-*-*|sort -V|tail -1) /boot/config-kernel.inc
 %doc /boot/LICENCE.broadcom
 %endif
 
+%if %{with_headers}
+%files kernel%{?ksuffix}-headers
+/usr/include/*
+%exclude %{_includedir}/cpufreq.h
+%exclude %{_includedir}/internal/
+%exclude %{_includedir}/perf/
+%endif
+
 %changelog
+* Thu Sep 05 2024 Koichiro Iwao <meta@almalinux.org> - 6.6.31-20240529.v8.4
+- Add kernel-headers subpackage
+
 * Fri Aug 30 2024 Andrew Lukoshko <alukoshko@almalinux.org> - 6.6.31-20240529.v8.3
 - Fix kernel-tools dependencies