Re: gcc -nologo?

[Steven G. Johnson]

Please cc your messages to the mailing list; I'm forwarding your message
below:

---------- Forwarded message ----------
Date: Sun, 1 Apr 2001 13:26:36 +0200
From: Tobias Hunger <address@hidden>
To: Steven G. Johnson <address@hidden>
Subject: Re: gcc -nologo?

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Sunday 01 April 2001 02:12, you wrote:
> First, when reporting a potential bug, you should try to give some
> relevant information, such as the operating system you are using, the CPU,
> the compiler version, and so on.  (A minimal configure.in that exhibits
> the problem would also be useful, if you can make one.)

Yeah, you are right. I forgot about that again (although I keep getting upset 
when people do so when sending bug-reports to me). Sorry, this was very 
thoughtless.

I'm using Debian Linux (2.4.2acSomething). My compiler is either gcc Version 
2.95.3 or the current snapshot of gcc 3.0. The CPU is Intel Pentium II (300 
or 400MHz), one of the computers I see this problem with is a SMP-machine. 
Sending a snapshot is not very easy since our build system is rather complex 
and big (consisting of several independent packages that are configured 
together which are surprisingly dependent once you want to get a single file 
out of it:-).

> Second, you should try the latest snapshot of autoconf
> (ftp://alpha.gnu.org/pub/gnu/autoconf/autoconf-2.49d.tar.gz) to see if it
> continues to exhibit a similar problem.  (It shouldn't give exactly the
> same error, because the new version no longer tries the -nologo flag.

You should have a link on your homepage to that file.

This is what happens after the upgrade:
/home/export/berlin/Berlin> autoconf
./aclocal.m4:904: /usr/bin/m4: Non-numeric argument to built-in `divert'
configure.in:31: /usr/bin/m4: Non-numeric argument to built-in `divert'
configure.in:33: /usr/bin/m4: Non-numeric argument to built-in `divert'
configure.in:34: /usr/bin/m4: Non-numeric argument to built-in `divert'
configure.in:39: /usr/bin/m4: Non-numeric argument to built-in `divert'
configure.in:222: warning: AC_CONFIG_SUBDIRS: you should use literals
/home/export/berlin/Berlin> autoconf --version
autoconf (GNU Autoconf) 2.49d
Written by David J. MacKenzie.
<snip>

What did I do wrong here? I installed the new version over the old one. All 
dirs were identical as far as I can tell. Wow, great, the same happens after 
downgrading autoconf again:-(

> Third, it seems to be incorrectly figuring out how to run the C
> preprocessor.  To do this, autoconf-2.13 tries to preprocess a small file
> containing two lines:
>
> #include <assert.h>
> Syntax Error
>
> (The second line is to give an error if it tries to compile it, I think.)
> It first tries 'gcc -E', then 'gcc -E -traditional-cpp', then 'gcc -nologo
> -E', then some other things.  You might try running these tests "by hand"
> to see if they work, or if there is something broken on your system.

'gcc -E' works fine.

This whole problem could very well be our fault. We had problems with 
configure setting flags wrong (for gcc v3) since it used gcc for it's tests 
while the program was later compiled with g++. Stefan filed this as a bug in 
gcc.

> A workaround, by the way, should be to set the CPP environment variable to
> the name of a working C preprocessor command on your system.
>
> Cordially,
> Steven G. Johnson

- -- 
Gruss,
Tobias

- -------------------------------------------------------------------
Tobias Hunger                  The box said: 'Windows 95 or better'
address@hidden                  So I installed Linux.
- -------------------------------------------------------------------

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.4 (GNU/Linux)
Comment: For info see http://www.gnupg.org

iD8DBQE6xxBsVND+cGpk748RAp1EAJ9mKI8VZUXZzv0F6fIZAoLTw/OKFgCfV6Up
Esvhw46Yv9LzlSowW8Yen9M=
=Hu1k
-----END PGP SIGNATURE-----