Recognize *.sl and *.so as library (i.e. linker) arguments
diff --git a/Modules/makesetup b/Modules/makesetup
index 76ee033..b00dfd4 100755
--- a/Modules/makesetup
+++ b/Modules/makesetup
@@ -132,6 +132,8 @@
 			-[IDUC]*)	cpps="$cpps $arg";;
 			-[A-Zl]*)	libs="$libs $arg";;
 			*.a)		libs="$libs $arg";;
+			*.so)		libs="$libs $arg";;
+			*.sl)		libs="$libs $arg";;
 			*.o)		srcs="$srcs `basename $arg .o`.c";;
 			*.[cC])		srcs="$srcs $arg";;
 			*.cc)		srcs="$srcs $arg";;