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* [Buildroot]  Autoconf still not building (M4 ) results
@ 2009-10-26  6:37 Vellemans, Noel
  2009-10-26 10:35 ` Will Newton
  0 siblings, 1 reply; 20+ messages in thread
From: Vellemans, Noel @ 2009-10-26  6:37 UTC (permalink / raw)
  To: buildroot

Repost .. mail did not reach mailing-list.

Noel,
________________________________

From: Noel Vellemans  
 Sent: 26Oct09 00:16
To: Peter Korsgaard
Cc: Sagaert Johan; buildroot at uclibc.org; llandwerlin at gmail.com;
Vellemans, Noel
Subject: Re: [Buildroot] Autoconf still not building (M4 ) results


Hi all,

Been DIGGING into the configure script ...And I have found SOMETHING
that possibly is the problem.

(have put a lot of echo's into the code to find-out something wierd)

I think the problem is that the LINE 
'echo
'changequote(<,>)indir(<ifdef>,mac,bug)patsubst(a,\(b\)\|\(a\),\1)dnl' |
/buildhome/20091024/buildroot/output/host/usr/bin/m4 --trace=mac' is not
empty/zero but a strange character printed as a small funny-thing a "00
01" (graphic thing) , due to this the 'test -z' fails .

A second test I did was remove the '&& test -z "`echo $ac_snippet |
$ac_path_M4 --trace=mac 2>&1`"line in the script and then everything
runs normal (no errors).


<snip .. echo stuff >

  test -z "$as_dir" && as_dir=.
    for ac_prog in m4 gm4 gnum4; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_M4="$as_dir/$ac_prog$ac_exec_ext"

#      echo "\n(0) $ac_path_M4,  $as_dir,  $ac_prog,   $ac_exec_ext,
$as_test_x"
 
      { test -f "$ac_path_M4" && $as_test_x "$ac_path_M4"; } || continue
      # Root out GNU M4 1.4.5, as well as non-GNU m4 that ignore -t, -F.
      ac_snippet=change'quote(<,>)in''dir(<if''def>,mac,bug)'
      ac_snippet=${ac_snippet}pat'subst(a,\(b\)\|\(a\),\1)d'nl
      
      echo "\n(1) $ac_path_M4"
      echo "$ac_snippet | $ac_path_M4 --trace=mac"
#      $ac_path_M4 -F conftest.m4f
#      cat conftest.m4f
#      rm -f conftest.m4f
      echo "$ac_snippet | $ac_path_M4 --trace=mac."
      echo
'changequote(<,>)indir(<ifdef>,mac,bug)patsubst(a,\(b\)\|\(a\),\1)dnl' |
/buildhome/20091024/buildroot/output/host/usr/bin/m4 --trace=mac
## THE ABOVE line prints a strange CHARACTER bug here ???????

      test -z "`$ac_path_M4 -F conftest.m4f </dev/null 2>&1`" \
      && test -z "`echo $ac_snippet | $ac_path_M4 --trace=mac 2>&1`" \
      && test -f <snip .. echo stuff >
conftest.m4f \
      && ac_cv_path_M4=$ac_path_M4 ac_path_M4_found=:
      rm -f conftest.m4f
      $ac_path_M4_found && break 3
    done
<snip .. echo stuff >


Greetz...... Noel


PS: upgrading to a newer version (> 1.4.9) has the same problem (double
checked it)



On Sun, Oct 25, 2009 at 5:47 PM, Peter Korsgaard <jacmet@uclibc.org>
wrote:


	>>>>> "Sagaert" == Sagaert Johan <sagaert.johan@skynet.be>
writes:
	
	
	 Sagaert> Hi
	
	 Sagaert> There seems to be a problem somewhere in the configure
script
	 Sagaert> of autoconf 2.64
	
	Exactly.
	
	 Sagaert> I found a way to solve it by setting the M4 variable
in the
	 Sagaert> makefile (line 42) so the configure script does not
have to
	 Sagaert> parse and find the m4 path.
	
	Ok, that's atleast a workaround, but I would like to understand
what the
	problem is exactly.
	
	 Sagaert> Something seems to go wrong in the tests done around
line 2378 in the
	 Sagaert> configure script (compare with configure script of
v2.63 )
	
	 Sagaert> Snip
	 Sagaert>    { test -f "$ac_path_M4" && $as_test_x
"$ac_path_M4"; } || continue
	 Sagaert>       # Root out GNU M4 1.4.5, as well as non-GNU m4
that ignore -t, -F.
	 Sagaert>
ac_snippet=change'quote(<,>)in''dir(<if''def>,mac,bug)'
	 Sagaert>
ac_snippet=${ac_snippet}pat'subst(a,\(b\)\|\(a\),\1)d'nl
	 Sagaert>       echo "ac_snippet2=$ac_snippet"
	 Sagaert>       test -z "`$ac_path_M4 -F conftest.m4f </dev/null
2>&1`" \
	 Sagaert>       && test -z "`echo $ac_snippet | $ac_path_M4
--trace=mac 2>&1`" \
	 Sagaert> snip
	
	Indeed. Could you try sticking in a few debug echo lines, to
figure out
	what's going on?
	
	 Sagaert> Meanwhile it might be a good idea to update the m4
package in buildroot to
	 Sagaert> 1.4.13 instead of the current 1.4.9
	
	Indeed. But you wrote something earlier about that not having
any effect
	on the above problem, right?
	
	--
	Bye, Peter Korsgaard
	


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^ permalink raw reply	[flat|nested] 20+ messages in thread
* [Buildroot] Autoconf still not building (M4 )
@ 2009-10-23 13:20 Peter Korsgaard
  2009-10-23 16:54 ` [Buildroot] Autoconf still not building (M4 ) results Sagaert Johan
  0 siblings, 1 reply; 20+ messages in thread
From: Peter Korsgaard @ 2009-10-23 13:20 UTC (permalink / raw)
  To: buildroot

>>>>> "Sagaert" == Sagaert Johan <sagaert.johan@skynet.be> writes:

Hi,
 
 Sagaert> Why is behaves this this differently ?

Strange. Try comparing the config.log files of the two runs and have a
look at the line numbers in configure that config.log refers to.

-- 
Bye, Peter Korsgaard

^ permalink raw reply	[flat|nested] 20+ messages in thread
end of thread, other threads:[~2009-10-26 18:19 UTC | newest]

Thread overview: 20+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <D675D91F830D4777BC8E1C8B2AF4CD7C@apexjs>
2009-10-24 18:14 ` [Buildroot] Autoconf still not building (M4 ) results Peter Korsgaard
2009-10-24 19:07   ` Lionel Landwerlin
2009-10-24 19:11     ` Peter Korsgaard
2009-10-24 22:06   ` Sagaert Johan
2009-10-25 16:47     ` Peter Korsgaard
2009-10-26  9:43       ` [Buildroot] Autoconf still not building (M4 ) results getting weird Sagaert Johan
2009-10-26  6:37 [Buildroot] Autoconf still not building (M4 ) results Vellemans, Noel
2009-10-26 10:35 ` Will Newton
2009-10-26 10:57   ` Vellemans, Noel
2009-10-26 11:48     ` Will Newton
2009-10-26 11:58       ` Vellemans, Noel
2009-10-26 12:11         ` Will Newton
2009-10-26 12:20           ` Vellemans, Noel
2009-10-26 12:44             ` Peter Korsgaard
2009-10-26 15:55               ` Lionel Landwerlin
2009-10-26 18:19                 ` Peter Korsgaard
  -- strict thread matches above, loose matches on Subject: below --
2009-10-23 13:20 [Buildroot] Autoconf still not building (M4 ) Peter Korsgaard
2009-10-23 16:54 ` [Buildroot] Autoconf still not building (M4 ) results Sagaert Johan
2009-10-24  6:21   ` Peter Korsgaard
2009-10-24  9:18     ` Sagaert Johan
2009-10-24  9:38       ` Peter Korsgaard

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