Use alternatives for soelim and roff.7

groff.spec

@@ -3,7 +3,7 @@
 Summary: A document formatting system
 Name: groff
 Version: 1.22.3
-Release: 21%{?dist}
+Release: 22%{?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
@@ -19,8 +19,14 @@ Patch3: 0004-don-t-use-usr-bin-env-in-shebang.patch
 Patch4: 0005-Add-missing-rule-for-gropdf.patch
 
 Requires: coreutils, groff-base = %{version}-%{release}
+
+Requires(post): %{_sbindir}/update-alternatives
+Requires(postun): %{_sbindir}/update-alternatives
+Requires(preun): %{_sbindir}/update-alternatives
+
 BuildRequires: gcc, gcc-c++
 BuildRequires: git, netpbm-progs, perl-generators, psutils, ghostscript
+
 Provides: nroff-i18n = %{version}-%{release}
 Provides: bundled(gnulib)
 
@@ -109,6 +115,14 @@ make %{?_smp_mflags}
 %install
 make install DESTDIR=%{buildroot}
 
+# rename files for alternative usage
+mv %{buildroot}%{_bindir}/soelim %{buildroot}%{_bindir}/soelim.%{name}
+touch %{buildroot}%{_bindir}/soelim
+mv %{buildroot}%{_mandir}/man1/soelim.1 %{buildroot}%{_mandir}/man1/soelim.%{name}.1
+touch %{buildroot}%{_mandir}/man1/soelim.1
+mv %{buildroot}%{_mandir}/man7/roff.7 %{buildroot}%{_mandir}/man7/roff.%{name}.7
+touch %{buildroot}%{_mandir}/man7/roff.7
+
 # some binaries need alias with 'g' or 'z' prefix
 for file in g{nroff,troff,tbl,pic,eqn,neqn,refer,lookbib,indxbib,soelim} zsoelim; do
     ln -s ${file#?} %{buildroot}%{_bindir}/${file}
@@ -142,6 +156,41 @@ 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
 
+%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 \
+    >/dev/null 2>&1 || :
+
+%preun
+if [ $1 -eq 0 ]; then
+    %{_sbindir}/update-alternatives --remove roff.7.gz %{_mandir}/man7/roff.%{name}.7.gz >/dev/null 2>&1 || :
+fi
+
+%postun
+if [ $1 -ge 1 ]; then
+    if [ "$(readlink %{_sysconfdir}/alternatives/roff.7.gz)" == "%{_mandir}/man7/roff.%{name}.7.gz" ]; then
+        %{_sbindir}/update-alternatives --set roff.7.gz %{_mandir}/man7/roff.%{name}.7.gz >/dev/null 2>&1 || :
+    fi
+fi
+
+%post base
+# set up the alternatives files
+%{_sbindir}/update-alternatives --install %{_bindir}/soelim soelim %{_bindir}/soelim.%{name} 300 \
+    --slave %{_mandir}/man1/soelim.1.gz soelim.1.gz %{_mandir}/man1/soelim.%{name}.1.gz \
+    >/dev/null 2>&1 || :
+
+%preun base
+if [ $1 -eq 0 ]; then
+    %{_sbindir}/update-alternatives --remove soelim %{_bindir}/soelim.%{name} >/dev/null 2>&1 || :
+fi
+
+%postun base
+if [ $1 -ge 1 ]; then
+    if [ "$(readlink %{_sysconfdir}/alternatives/soelim)" == "%{_bindir}/soelim.%{name}" ]; then
+        %{_sbindir}/update-alternatives --set soelim %{_bindir}/soelim.%{name} >/dev/null 2>&1 || :
+    fi
+fi
+
 %files
 # data
 %{_datadir}/%{name}/%{version}/font/devdvi/
@@ -222,6 +271,7 @@ sed --in-place 's|#! /bin/sed -f|#! /usr/bin/sed -f|' %{buildroot}%{_datadir}/gr
 %{_mandir}/man1/gindxbib.*
 # groff processor documentation
 %{_mandir}/man5/*
+%ghost %{_mandir}/man7/roff.7*
 %{_mandir}/man7/*
 %{_infodir}/groff.info*
 
@@ -306,7 +356,8 @@ sed --in-place 's|#! /bin/sed -f|#! /usr/bin/sed -f|' %{buildroot}%{_datadir}/gr
 %{_bindir}/post-grohtml
 %{_bindir}/pre-grohtml
 %{_bindir}/preconv
-%{_bindir}/soelim
+%ghost %{_bindir}/soelim
+%{_bindir}/soelim.%{name}
 %{_bindir}/tbl
 %{_bindir}/troff
 %{_mandir}/man1/eqn.*
@@ -317,7 +368,8 @@ sed --in-place 's|#! /bin/sed -f|#! /usr/bin/sed -f|' %{buildroot}%{_datadir}/gr
 %{_mandir}/man1/nroff.*
 %{_mandir}/man1/pic.*
 %{_mandir}/man1/preconv.*
-%{_mandir}/man1/soelim.*
+%ghost %{_mandir}/man1/soelim.1*
+%{_mandir}/man1/soelim.%{name}.*
 %{_mandir}/man1/tbl.*
 %{_mandir}/man1/troff.*
 # compatibility symlinks
@@ -410,6 +462,9 @@ sed --in-place 's|#! /bin/sed -f|#! /usr/bin/sed -f|' %{buildroot}%{_datadir}/gr
 %doc %{_pkgdocdir}/pdf/
 
 %changelog
+* Wed Feb 26 2020 Nikola Forró <nforro@redhat.com> - 1.22.3-22
+- Use alternatives for soelim and roff.7
+
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.22.3-21
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild