Working changes for GCC 3.0.2.

This thing grew.  We now have to link with many more files as if it
were one of the driver programs.  We also have to deal with the very
irritating layering of malloc and friends.  Our malloc works *very*
well thank you.  Thus we will use it.

gnu/usr.bin/cc/c++filt/Makefile

@@ -0,0 +1,36 @@
+# $FreeBSD$
+
+.include "../Makefile.inc"
+
+.PATH: ${GCCDIR}
+
+PROG=	c++filt
+SRCS=	cp-demangle.c cplus-dem+%DIKED.c getopt.c getopt1.c underscore.c
+BINDIR=	/usr/libexec/${OBJFORMAT}
+NOMAN=	1
+
+CFLAGS+= -DMAIN -DIN_GCC -DVERSION=\"$(version)\"
+
+DPADD+=	${LIBCC_INT}
+LDADD+=	${LIBCC_INT}
+
+CLEANFILES= tmp-dum.c tmp-dum.s underscore.c
+
+underscore.c:
+	echo "int xxy_us_dummy;" >tmp-dum.c
+	${CC} -S tmp-dum.c
+	echo '/*WARNING: This file is automatically generated!*/' >underscore.c
+	if grep _xxy_us_dummy tmp-dum.s > /dev/null ; then \
+	  echo "int prepends_underscore = 1;" >>underscore.c; \
+	else \
+	  echo "int prepends_underscore = 0;" >>underscore.c; \
+	fi
+	rm -f tmp-dum.c tmp-dum.s
+
+cplus-dem+%DIKED.c: cplus-dem.c
+	sed \
+	    -e 's/^xmalloc[ 	]/_DONT_xmalloc /g' \
+	    -e 's/^xrealloc[ 	]/_DONT_xrealloc /g' \
+	    ${.ALLSRC} > ${.TARGET}
+
+.include <bsd.prog.mk>