On Mon, 2008-07-07 at 17:42 -0500, John Lightsey wrote:

It looks like the build problems with the flexible array members in
Dovecot 1.1 and GCC 2.95 has been raised several times already on this
list, but no one mentioned out that autoconf 2.61+ provides a macro to
deal with these.

I had also thought about doing something like this, but hadn't bothered yet. AC_C_FLEXIBLE_ARRAY_MEMBER would have been a nice solution, but autoconf 2.61 is too new. For example RHEL/Centos 5.2 still has only 2.59 (and dovecot.org is running it). So I implemented my own version of the check: http://hg.dovecot.org/dovecot-1.1/rev/97245d54efee