caca, cxx: install symlinks for backwards compatibility with libcucul.

caca/Makefile.am

@@ -56,6 +56,14 @@ libcaca_la_CPPFLAGS = $(AM_CPPFLAGS) @CACA_CFLAGS@ -D__LIBCACA__
 libcaca_la_LDFLAGS = -no-undefined -version-number @LT_VERSION@
 libcaca_la_LIBADD = @CACA_LIBS@ $(ZLIB_LIBS)
 
+install-exec-hook:
+	ln -sf libcaca.so $(DESTDIR)$(libdir)/libcucul.so
+	ln -sf libcaca.so.0 $(DESTDIR)$(libdir)/libcucul.so.0
+
+uninstall-hook:
+	rm -f $(DESTDIR)$(libdir)/libcucul.so
+	rm -f $(DESTDIR)$(libdir)/libcucul.so.0
+
 if USE_PLUGINS
 plugin_LTLIBRARIES = libx11_plugin.la libgl_plugin.la
 plugindir = $(libdir)/caca

cxx/Makefile.am

@@ -21,3 +21,11 @@ endif
 cxxtest_SOURCES = cxxtest.cpp
 cxxtest_LDADD = libcaca++.la ../caca/libcaca.la
 
+install-exec-hook:
+	ln -sf libcaca++.so $(DESTDIR)$(libdir)/libcucul++.so
+	ln -sf libcaca++.so.0 $(DESTDIR)$(libdir)/libcucul++.so.0
+
+uninstall-hook:
+	rm -f $(DESTDIR)$(libdir)/libcucul++.so
+	rm -f $(DESTDIR)$(libdir)/libcucul++.so.0
+