diff --git a/scripts/build b/scripts/build
index 0f85562..5c68302 100755
--- a/scripts/build
+++ b/scripts/build
@@ -18,7 +18,7 @@ done
 
 trap 'rm -f ${BASE}$$.s ${BASE}$$.c ${BASE}$$.o ${BASE}$$; exit 1' 1 2 15
 
-LDLIBS="-lm"
+LDLIBS="${LDLIBS} -lm"
 
 # check for HP-UX's ANSI compiler
 echo "main(int ac, char *av[]) { int i; }" > ${BASE}$$.c