fix units compatibility with Image Mode

Resolves: RHEL-106022

units.spec

@@ -1,11 +1,13 @@
 Summary: A utility for converting amounts from one unit to another
 Name: units
 Version: 2.22
-Release: 10%{?dist}
+Release: 11%{?dist}
 Source: https://ftp.gnu.org/gnu/units/%{name}-%{version}.tar.gz
+Source1: units.tmpfiles.conf
 URL: https://www.gnu.org/software/units/units.html
 License: GPL-3.0-or-later
 BuildRequires: bison
+BuildRequires: systemd-rpm-macros
 BuildRequires: gcc
 BuildRequires: make
 BuildRequires: ncurses-devel
@@ -32,14 +34,32 @@ well as conversions such as Fahrenheit to Celsius.
 %install
 %make_install
 
-# replace an absolute symlink by a relative symlink
-ln -fsv ../../..%{_sharedstatedir}/units/currency.units %{buildroot}%{_datadir}/units
+# Copy dynamic files to defaults directory as templates for tmpfiles.d
+mkdir -p %{buildroot}%{_datadir}/units/defaults
+cp -p %{buildroot}%{_sharedstatedir}/units/currency.units %{buildroot}%{_datadir}/units/defaults/
+
+# Remove /var/lib/units from buildroot - now managed by tmpfiles.d
+rm -rf %{buildroot}%{_sharedstatedir}/units
+
+# Replace absolute symlinks by relative symlinks
+ln -fsv ../../../var/lib/units/currency.units %{buildroot}%{_datadir}/units/currency.units
+
+# Install tmpfiles.d configuration for Image Mode support
+install -m0644 -D %{SOURCE1} %{buildroot}%{_tmpfilesdir}/units.conf
 
 gzip %{buildroot}%{_infodir}/units.info
 
 # provide a man page for units_cur as a symlink to units.1
 ln -s units.1 %{buildroot}%{_mandir}/man1/units_cur.1
 
+%post
+%tmpfiles_create units.conf
+
+%postun
+if [ $1 -eq 0 ]; then
+  systemd-tmpfiles --purge %{_tmpfilesdir}/units.conf 2>/dev/null || :
+fi
+
 %check
 make check
 
@@ -48,11 +68,14 @@ make check
 %{_bindir}/units
 %{_bindir}/units_cur
 %{_datadir}/units
-%{_sharedstatedir}/units
+%{_tmpfilesdir}/units.conf
 %{_infodir}/*
 %{_mandir}/man1/*
 
 %changelog
+* Tue Apr 21 2026 Jan Macku <jamacku@redhat.com> - 2.27-2
+- fix units compatibility with Image Mode
+
 * Tue Oct 29 2024 Troy Dawson <tdawson@redhat.com> - 2.22-10
 - Bump release for October 2024 mass rebuild:
   Resolves: RHEL-64018

units.tmpfiles.conf

@@ -0,0 +1,2 @@
+d /var/lib/units 0755 root root - -
+C /var/lib/units/currency.units 0644 root root - /usr/share/units/defaults/currency.units