Path: utzoo!telly!attcan!uunet!mcvax!hp4nl!philmds!prle!cstw01!meulenbr
From: meulenbr@cstw01.UUCP (Frans Meulenbroeks)
Newsgroups: gnu.gcc.bug
Subject: gcc 1.33 does not remove .o file
Message-ID: <339@cstw01.UUCP>
Date: 21 Feb 89 15:37:28 GMT
Reply-To: meulenbr@cst.UUCP ()
Organization: Centre for Software Technology, Philips Eindhoven
Lines: 70

Hi!

Perhaps this is not a bug but a feature...

I don't know if this is intended, but gcc 1.33 does not remove its .o
file any more if called with gcc file.c.
I seem to recall that previous versions of gcc did do this.

This is a little annoying since it leaves .o files around when not
needed. gnu make also will not remove these files.

Example:

w01$ ls
x.c
w01$ cat x.c
main()
{
}
w01$ gcc -v x.c
gcc version 1.33
 /usr/cstu20/gadgets/lib/gcc-cpp -v -undef -D__GNUC__ -Dmc68000 -Dsun
-Dunix -D__mc68000__ -D__sun__ -D__unix__ -D__HAVE_68881__ -Dmc68020 x.c
/tmp/cca02412.cpp 
GNU CPP version 1.33
 /usr/cstu20/gadgets/lib/gcc-cc1 /tmp/cca02412.cpp -quiet -dumpbase x.c
-version -o /tmp/cca02412.s
GNU C version 1.33 (68k, MIT syntax) compiled by GNU C version 1.33.
 as -mc68020 /tmp/cca02412.s -o x.o
 ld /lib/crt0.o /lib/Mcrt1.o x.o /usr/cstu20/gadgets/lib/gcc-gnulib -lc
w01$ ls
a.out  x.c    x.o
w01$ rm a.out x.o
w01$ ls
x.c
w01$ ~gadgets/bin/make -v CC=gcc x
GNU Make version 3.29, by Richard Stallman and Roland McGrath.
Copyright (C) 1988 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
 
gcc   x.c  -o x
w01$ ls
x    x.c  x.o
w01$ 

Hmmm. 

let's see what sun cc does:

w01$ rm x.o x 
w01$ ls
x.c
w01$ cc x.c
w01$ ls
a.out  x.c

Can anyone comment whether this is a bug or a feature.
I could not find anything in the documentation which implies that a .o
file should be removed. However, all other unix C compilers used to do this.
I seem to recall that previous versions of gcc remove the .o file, and I
could not find anything in the change log which describes this change.

(o.k. I might need new glasses :-) :-) )

-- 
Frans Meulenbroeks        (meulenbr@cst.prl.philips.nl)
	Centre for Software Technology
	( or try: ...!mcvax!philmds!prle!cst!meulenbr)