Add profiling. Also some trivial optimisations to skip memcpying.

Makefile

@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.9 2007-10-01 14:53:29 nicm Exp $
+# $Id: Makefile,v 1.10 2007-10-03 00:13:46 nicm Exp $
 
 .SUFFIXES: .c .o .y .h
 .PHONY: clean
@@ -25,6 +25,11 @@ YACC= yacc -d
 CC= cc
 INCDIRS+= -I. -I- -I/usr/local/include
 CFLAGS+= -DBUILD="\"$(VERSION) ($(DATE))\"" -DMETA="'${META}'"
+.ifdef PROFILE
+# Don't use ccache
+CC= /usr/bin/gcc
+CFLAGS+= -pg -DPROFILE -O0
+.endif
 .ifdef DEBUG
 CFLAGS+= -g -ggdb -DDEBUG
 LDFLAGS+= -Wl,-E
@@ -40,6 +45,9 @@ INSTALLBIN= install -g bin -o root -m 555
 INSTALLMAN= install -g bin -o root -m 444
 
 LDFLAGS+= -L/usr/local/lib
+.ifdef PROFILE
+LDFLAGS+= -pg
+.endif
 LIBS+= -lutil -lncurses
 
 OBJS= ${SRCS:S/.c/.o/:S/.y/.o/}