(1) Rearrange the MASTER_SITES, if the http service of a machine is down

it's a safe bet that the ftp service would be too. Re-order the MASTER_SITES
to try and avoid trying the same broken site twice.

(2) Follow the bouncing checksum. The old one might need to be re-added.

(3) Respect CFLAGS properly.

math/calc/Makefile

@@ -10,8 +10,8 @@ DISTNAME=	calc-2.11.1t3.0
 PKGNAME=	calc-2.11.1
 CATEGORIES=	math
 MASTER_SITES=	ftp://reality.sgi.com/users/chongo/src/calc/		\
-		http://reality.sgi.com/chongo/src/calc/			\
-		ftp://ftp.uu.net/pub/calc/
+		ftp://ftp.uu.net/pub/calc/				\
+		http://reality.sgi.com/chongo/src/calc/
 
 MAINTAINER=	jmz@FreeBSD.org
 

math/calc/files/patch-ab

@@ -4,8 +4,8 @@
  #
  CCWARN= -Wall -Wno-implicit -Wno-comment
  CCOPT= ${DEBUG} ${NO_SHARED}
--CCMISC=
-+CCMISC= -O
+ CCMISC=
  #
- CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
+-CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
++CFLAGS+= ${CCWARN} ${CCOPT} ${CCMISC}
  ICFLAGS= ${CCWARN} ${CCMISC}