Re: Autoconf2.52h on BeOS R5.0.4!

[Akim Demaille]

| PATH=../..:$PATH autom4te -l m4sugar script.4s -o- -Wnone,bar,error -f 
| -d -v
| autom4te: formatting traces for `/tmp/t42131.472652/dependencies': 
| include, m4_include
| autom4te: up_to_date (autom4te.cache/traces.0): up to date
| autom4te: the trace request object is:
| $VAR1 = bless( [
|                  '0',
|                  1,
|                  [
|                    '/boot/home/config/share/autoconf',
|                    '/boot/develop/autoconf-2.52h/lib'
|                  ],
|                  [
|                    '--reload-state=/boot/develop/autoconf-2.52h/lib/
| m4sugar/m4sugar.m4f',
|                    'script.4s'
|                  ],
|                  {
|                    'm4_pattern_forbid' => 1,
|                    'include' => 1,
|                    'm4_pattern_allow' => 1,
|                    'm4_include' => 1
|                  }
|                ], 'Request' );
| 
| autom4te: running: /bin/m4 --nesting-limit=1024 --include=/boot/develop
| /autoconf-2.52h/lib --include=/boot/home/config/share/autoconf --define
| =m4_warnings=error,bar,none,syntax --debug=aflq --error-output=
| autom4te.cache/traces.0 --trace=include --trace=m4_include --trace=
| m4_pattern_allow --trace=m4_pattern_forbid
|  --reload-state=/boot/develop
| /autoconf-2.52h/lib/m4sugar/m4sugar.m4f script.4s </dev/null >
| autom4te.cache/output.0
| script.4s:2: error: bar
| script.4s:2: the top level
| autom4te: /bin/m4 --nesting-limit=1024: failed with exit status: 0

Well, that's weird.  autom4te noticed that there was a failure (failed
with...), but shows $? = 0!!!

What gives the following?

$ perl -e 'print system ("sh -c \"exit 1\""), "\n"; print $?, ", ", $? >> 8, 
"\n";'

On my system, I have:

256
256, 1