Fix upgrades from non-alternativized versions

groff.spec

@@ -3,7 +3,7 @@
 Summary: A document formatting system
 Name: groff
 Version: 1.22.3
-Release: 22%{?dist}
+Release: 23%{?dist}
 License: GPLv3+ and GFDL and BSD and MIT
 URL: http://www.gnu.org/software/groff/
 Source: ftp://ftp.gnu.org/gnu/groff/groff-%{version}.tar.gz
@@ -156,6 +156,10 @@ popd
 # /bin/sed moved to /usr/bin/sed in Fedora
 sed --in-place 's|#! /bin/sed -f|#! /usr/bin/sed -f|' %{buildroot}%{_datadir}/groff/%{version}/font/devps/generate/symbol.sed
 
+%pre
+# remove alternativized files if they are not symlinks
+[ -L %{_mandir}/man7/roff.7.gz ] || rm -f %{_mandir}/man7/roff.7.gz
+
 %post
 # set up the alternatives files
 %{_sbindir}/update-alternatives --install %{_mandir}/man7/roff.7.gz roff.7.gz %{_mandir}/man7/roff.%{name}.7.gz 300 \
@@ -173,6 +177,11 @@ if [ $1 -ge 1 ]; then
     fi
 fi
 
+%pre base
+# remove alternativized files if they are not symlinks
+[ -L %{_bindir}/soelim ] || rm -f %{_bindir}/soelim
+[ -L %{_mandir}/man1/soelim.1.gz ] || rm -f %{_mandir}/man1/soelim.1.gz
+
 %post base
 # set up the alternatives files
 %{_sbindir}/update-alternatives --install %{_bindir}/soelim soelim %{_bindir}/soelim.%{name} 300 \
@@ -462,6 +471,9 @@ fi
 %doc %{_pkgdocdir}/pdf/
 
 %changelog
+* Fri Feb 28 2020 Nikola Forró <nforro@redhat.com> - 1.22.3-23
+- Fix upgrades from non-alternativized versions
+
 * Wed Feb 26 2020 Nikola Forró <nforro@redhat.com> - 1.22.3-22
 - Use alternatives for soelim and roff.7