Re: use execute module in m4

[Gary V. Vaughan]

Hi Eric,

2009/3/4 Eric Blake <address@hidden>:
> Here's the followup patches which switch to the pipe module for esyscmd,
> nuke code rendered dead now that gnulib takes care of separating signal
> from normal exit status, then adds ./configure --with-syscmd-shell to
> allow overriding the default choice of /bin/sh (or, on Solaris,
> /usr/xpg4/bin/sh).  I've tested this on several platforms, but won't push
> to savannah until I've ported it to branch-1.6 and master.  To test it
> now, you can:
>
> $ git pull git://repo.or.cz/m4/ericb.git branch-1.4
>
> Gary, I'd be particularly interested in seeing if this cleans up the
> testsuite failures you saw on AIX related to sysval (since I already made
> that assumption when writing the ChangeLog).

% automake --version
automake (GNU automake) 1.10.1
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Tom Tromey <address@hidden>
       and Alexandre Duret-Lutz <address@hidden>.
% autoconf --version
autoconf (GNU Autoconf) 2.63
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv2+: GNU GPL version 2 or later
<http://gnu.org/licenses/old-licenses/gpl-2.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by David J. MacKenzie and Akim Demaille.
% cd ~/devel/gnulib--ericb--0
% git pull
Already up-to-date.
% git describe
v0.0-1834-g30163b1
% cd ~/devel/m4--ericb--1.4
% git pull
Already up-to-date.
% git describe
v1.4.12-34-g060b531
% GNULIB_TOOL=/home/gary/devel/gnulib--ericb--0/gnulib-tool ./bootstrap
...
% mkdir _build
% cd _build
% ../configure
...
% make dist
make: Warning: File `Makefile' has modification time 30 s in the future
{ test ! -d m4-1.4.12.34-060b5 || { find m4-1.4.12.34-060b5 -type d !
-perm -200 -exec chmod u+w {} ';' && rm -fr m4-1.4.12.34-060b5; }; }
test -d m4-1.4.12.34-060b5 || mkdir m4-1.4.12.34-060b5
cp: preserving permissions for `m4-1.4.12.34-060b5/README': Operation
not supported
make: *** [distdir] Error 1
% cp --version
cp (coreutils) 5.2.1
Written by Torbjorn Granlund, David MacKenzie, and Jim Meyering.

Copyright (C) 2004 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.
% find . -name Makefile -exec sed -i -e 's,cp -p ,cp ,;s,cp -p,cp -,' {} \;
% make dist
...

After that very long preamble (so that you can check my bootstrap
sanity!), you'll
be pleased to hear that AIX now passes all tests in all releases I
have access to.

I am, however, encountering this error now on HPUX and Tru64:

make[2]: Entering directory `/opt/build/m4-1.4.12.34-060b5/checks'
rm -f ./*[0-9][0-9][0-9].*
cd . && AWK=nawk ./get-them ../doc/m4.texinfo
awk: There is a regular expression error.
        \{ \} imbalence
 The source line number is 99.
 The error context is
                  gsub("@{", "{", >>>  $0) <<< ;

...which is easy enough to work around by installing gnu awk, and using
'./configure AWK=gawk' for m4, although that wasn't necessary on the last
rounds of testing, and I don't believe I have ever had gawk in my path at
configure time (except on linux where it is installed by default) :-?

Anyway, nits aside, this build of m4 passes all tests on all our machines
except:

  i686-redhat-linuxe2.1-gcc2.96
  i686-redhat-linux9-gcc3.2.2
  i686-redhat-linux7.1-gcc2.96
  hppa2.0-hp-hpux10.20-cc10.32

(as reported previously)

Cheers,
    Gary
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