2.57f: config.status fails on solaris 2.6 (Was: Configure Problem on Solaris 2.6)

[Alexandre Duret-Lutz]

Heinz Salzmann <address@hidden>:
| Automake 1.7.7, 1.7.8
| OS: sparc-sun-solaris2.6
| 
| When running "configure" on the above OS i get the following error:
| 
| configure: creating ./config.status
| ./config.status[28]: syntax error at line 28 : `||' unexpected
| -E- build.automake: /common/cad/GNU/automake/automake-1.7.8/configure
| --prefix=/usr/gnu --program-suffix=-1.7.8 ! Aborting.
| 
| 
| Looking into configure reveals, that it was created by "autoconf 2.57f".
| After reconfiguring "configure" with "autoconf 2.57" the whole process
| works fine. So it seems, there must be a problem with autoconf 2.57f
| for this OS.

I'm moving this to bug-autoconf@ since although the bug prevents
the installation of Automake on your host, it really is related
to config.status.

     27 # Support unset when possible.
     28 if ((MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
     29   as_unset=unset
     30 else
     31   as_unset=false
     32 fi

I fail to see what's wrong with line 28.  Apparently that
workaround to a bug in Bash just triggers a bug in another shell
:(

2003-07-31  Paul Eggert  <address@hidden>

        * lib/m4sugar/m4sh.m4 (_AS_UNSET_PREPARE): Work around a bug
        in Bash 2.01.  Problem reported by Brian Gough in
        <http://mail.gnu.org/archive/html/bug-autoconf/2003-07/msg00106.html>.

-- 
Alexandre Duret-Lutz