Re: [sqwebmail] [Courier-imap] New releases of courier packages

[Sam V. <mr...@co...>]

Manvendra Bhangui writes:

> On Wed, 1 Jun 2022 at 09:39, Sam Varshavchik <mr...@co...> wrote:
> >
> > Download: https://www.courier-mta.org/download.html
> >
> > New development builds of all packages.
> >
> > Changes:
> >
>
> >
> > - all: updates for gcc 12, autotools, and OpenSSL 3.0.
> >
> Not very important, but I thought it could help someone still using
> ancient distros to compile courier-imap. The latest autotools changes
> to configure.ac removing AC_PROG_CC_C99 has broken compilation on the
> following distributions.
>
> CentOS7
> RHEL7
> SLE12 and all SLE12 variants
> Ubuntu 16.04
>
> I had to do 4 minor changes to make courier-imap compile on all
> distributions, including the above 3

Autoconf deprecated the AC_PROG_CC_C99 macro, for the ostensibly reason that  
all currently supported major platforms don't need it.

There's automation on Github to automatically build everything on every  
commit, using containers. The CentOS 7 container had no issues building a  
courier-imap centos 7 rpm:

https://github.com/svarshavchik/courier/runs/6764330421?check_suite_focus=true

The likely explanation is that the original compiler that was released for  
CentOS 7 did not default to c++11/C99 by default, but was updated over  
CentOS 7's lifetime to a newer version that does, now.