[CALUG] Ubuntu 8.04 gcc 4.2.3 'configure' error - "-V option must have an argument"

[Ed Browne]

Hmmmm.  That's the ticket, alright.  I didn't realize I had
installed such a low-functioning system (I don't recall
turning off any packages, but then I was doing a couple
of things at once.)

Wireshark also required a few more packages, but now
that I know the secret, I can install packages till the cows
come home ;-)

Thanks again - Ed 



----- Original Message ----
From: Craig Younkins <cyounkins at gmail.com>
To: Ed Browne <edward_d_browne at yahoo.com>
Cc: calug at unknownlamer.org
Sent: Wednesday, August 20, 2008 7:51:09 PM
Subject: Re: [CALUG] Ubuntu 8.04 gcc 4.2.3 'configure' error - "-V option must have an argument"


Please try installing the build-essential package. 


sudo apt-get install build-essential

Craig Younkins


On Wed, Aug 20, 2008 at 1:40 PM, Ed Browne <edward_d_browne at yahoo.com> wrote:

I just installed Ubuntu 8.04, and now I notice that "configure"
seems to fail on any package at all (for instance, in this case
it's Wireshark 1.0.2)

root at bongo:/usr/local/src/wireshark-1.0.2# ./configure 
...
checking for gcc... gcc
checking for C compiler default output file name... 
configure: error: C compiler cannot create executables
See `config.log' for more details.
root at bongo:/usr/local/src/wireshark-1.0.2# 

The only error I see in 'config.log' is this:
gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)
configure:3123: $? = 0
configure:3130: gcc -V >&5
gcc: '-V' option must have argument
configure:3133: $? = 1
configure:3156: checking for C compiler default output file name
configure:3183: gcc    conftest.c  >&5
/usr/bin/ld: crt1.o: No such file: No such file or directory
collect2: ld returned 1 exit status

Did something change regarding the v/V options with gcc in this 
version?  I don't reckon that 'configure' is something that I could
change (successfully) and I don't have any other systems to
compare previous versions.  

Any and all suggestions welcome - Ed





----- Original Message ----
From: Sean Wilkerson <sean at seanandheather.com>
Cc: calug at unknownlamer.org
Sent: Thursday, August 14, 2008 11:13:19 AM
Subject: Re: [CALUG] My EeePC 1000 Review

Dave,
Informative review, thanks.  I am thinking about an EeePC in the next 
few months and was deciding which to get.  This helps.

*,

I think there is something else here that other responses missed:

> If you know your security, then you should know that by turning off 
> Samba, Print sharing, NFS, you would have in effect turned off the so 
> called bad services, which is what a Firewall does.

Why on earth are we equating the value of a firewall to closing 
services?  First, firewalls don't turn-off anything and this is VERY 
important to remember (defense-in-depth anyone?).

Second, a firewall does a lot more for me than to ensure I remembered to 
close and lock the door.  I may just have tcp/22 (avail only from 
specific sources) open, or maybe no port at all, but I still want 
netfilter available in the kernel and iptables to manage it.

Here are a few things that a FW might do other than mitigate the 
exposure of services that the admin (or the distro vendor) forgot to close:
- Provide detailed logs on activity regarding closed ports
- Provide you a dynamic blocking platform (see fail2ban or fwsnort
- Provide TCPOPTS/IPOPTS set in incoming packets allowing for off-line 
analysis to determine OS/platform and client which generated incoming 
packets
- Hidden-door VPN or other open port (see fwknop)
- mangling of outbound packets (for good reason of course)
- Managing the net between your VMs YOUR way, not their's
- Take a look at Michael Rash's book "Linux Firewalls" 
http://www.cipherdyne.org/LinuxFirewalls/ if you want more ideas (So 
worth the read)

I think this is a critical flaw.  It would be no problem if 
netfilter/iptables was available yet with no default config, but to not 
make it available at all is short-sighted.

That the platform's chief purpose is a non-primary computing system, 
only accentuates the need for a firewall IMHO.  A primary computing 
system will typically be used in a consistent fashion (work system, home 
system, etc.) but an Ultra-Portable Laptop can be used....anywhere quite 
easily. 


Sean

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