diff --git a/unifdef.spec b/unifdef.spec
index 86e07f3..71e02ec 100644
--- a/unifdef.spec
+++ b/unifdef.spec
@@ -1,3 +1,9 @@
+# The upstream Makefile installs unifdefall.sh as unifdefall, which makes
+# sense. Older versions of this package installed it as unifdefall.sh; for
+# compatibility on stable branches that had such older versions, we still
+# provide that path via a symlink.
+%bcond all_sh 1
+
 Name:           unifdef
 Version:        2.12
 Release:        %autorelease
@@ -57,7 +63,7 @@ additional text that they delimit, while otherwise leaving the file alone.
 %autosetup -p1
 # Show that we do not use the sources in FreeBSD – even though this does not
 # simplify the License, since unifdef.1 is still BSD-3-Clause.
-rm --recursive --verbose FreeBSD/
+rm -rv FreeBSD/
 
 
 %build
@@ -66,6 +72,9 @@ rm --recursive --verbose FreeBSD/
 
 %install
 %make_install prefix='%{_prefix}'
+%if %{with all_sh}
+ln -s unifdefall '%{buildroot}%{_bindir}/unifdefall.sh'
+%endif
 
 
 %check
@@ -84,6 +93,9 @@ PATH="%{buildroot}%{_bindir}:${PATH}" %make_build test
 
 %{_bindir}/unifdef
 %{_bindir}/unifdefall
+%if %{with all_sh}
+%{_bindir}/unifdefall.sh
+%endif
 
 %{_mandir}/man1/unifdef.1*
 %{_mandir}/man1/unifdefall.1*