Link against sources instead of installation paths that aren't DESTDIRed.
Patch taken from gentoo portage, upstream status unknown, author
probably Diego Pettenò.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
[Bernd: rebased against 2.3.1a]
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Fabrice: rebased against 2.3.3]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

--- a/slsh/Makefile.in
+++ b/slsh/Makefile.in
@@ -92,7 +92,7 @@
 $(OBJDIR)/slsh_exe: $(OBJDIR)/slsh.o $(OBJDIR)/readline.o
    $(CC) $(CFLAGS) $(OBJDIR)/slsh.o $(OBJDIR)/readline.o -o $(OBJDIR)/slsh_exe $(LDFLAGS) $(DLINK_FLAGS) $(SRC_LIBS)
 $(OBJDIR)/slsh: $(OBJDIR)/slsh.o $(OBJDIR)/readline.o
-	$(CC) $(OBJDIR)/slsh.o $(OBJDIR)/readline.o -o $(OBJDIR)/slsh $(LDFLAGS) $(DLINK_FLAGS) $(INST_LIBS)
+	$(CC) $(OBJDIR)/slsh.o $(OBJDIR)/readline.o -o $(OBJDIR)/slsh $(LDFLAGS) $(DLINK_FLAGS) $(SRC_LIBS)
 $(OBJDIR)/slsh.o: $(OBJDIR_TSTAMP) slsh.c slsh.h config.h Makefile
    cd $(OBJDIR) && $(CC) $(SLANG_SRCINC) $(CFLAGS) -c $(DEFS) $(SRCDIR)/slsh.c
 $(OBJDIR)/readline.o: $(OBJDIR_TSTAMP) readline.c slsh.h config.h Makefile