add compat-libs subpackage for ABI 5 libraries

ncurses.spec

@@ -43,6 +43,20 @@ discontinued 4.4 BSD classic curses library.
 
 This package contains the ncurses libraries.
 
+%package compat-libs
+Summary: Ncurses compatibility libraries
+Group: System Environment/Libraries
+Requires: %{name}-base = %{version}-%{release}
+
+%description compat-libs
+The curses library routines are a terminal-independent method of
+updating character screens with reasonable optimization.  The ncurses
+(new curses) library is a freely distributable replacement for the
+discontinued 4.4 BSD classic curses library.
+
+This package contains the ABI version 5 of the ncurses libraries for
+compatibility.
+
 %package base
 Summary: Descriptions of common terminals
 Group: System Environment/Base
@@ -211,6 +225,10 @@ bzip2 NEWS
 
 %postun libs -p /sbin/ldconfig
 
+%post compat-libs -p /sbin/ldconfig
+
+%postun compat-libs -p /sbin/ldconfig
+
 %files
 %doc ANNOUNCE AUTHORS NEWS.bz2 README TO-DO
 %{_bindir}/[cirt]*
@@ -219,7 +237,10 @@ bzip2 NEWS
 %{_mandir}/man7/*
 
 %files libs
-%{_libdir}/lib*.so.*
+%{_libdir}/lib*.so.6*
+
+%files compat-libs
+%{_libdir}/lib*.so.5*
 
 %files base -f terms.base
 %{!?_licensedir:%global license %%doc}