Add -pipe to default CFLAGS. The optimization it provides is cheap

and does not require any special action on the part of the user to
take advantage of it.  And no, it probably won't work with c89. Cry me
a river!

share/mk/sys.mk

@@ -1,5 +1,5 @@
 #	from: @(#)sys.mk	8.2 (Berkeley) 3/21/94
-#	$Id: sys.mk,v 1.29 1998/02/20 15:27:03 bde Exp $
+#	$Id: sys.mk,v 1.30 1998/03/23 14:58:30 eivind Exp $
 
 unix		?=	We run FreeBSD, not UNIX.
 
@@ -38,7 +38,7 @@ CC		?=	c89
 .else
 CC		?=	cc
 .endif
-CFLAGS		?=	-O
+CFLAGS		?=	-O -pipe
 
 CXX		?=	c++
 CXXFLAGS	?=	${CXXINCLUDES} ${CFLAGS}