[ale] SUCCESSFUL: My first custom recompile of an RPM. Was: Anyone have experience hosting email for multiple domains?

[Brandon Checketts]

Richard,

Glad that worked out for you.   The first step in the guide is enabling the
centosplus repository which should contain a Postfix package with MySQL support
compiled in.  My guess is postfix was installed prior to enabling that
repository, so the general package without MySQL support was already installed.
 Does that sound correct?

Glad you got it working without it though.  I've made a couple of notes in the
guide to mention that.

Thanks,
Brandon Checketts


Richard Bronosky wrote:
> A big THANK YOU to Brandon Checketts! The guide you wrote was really
> great. I decided to install CentOS on my slicehost server 1. because
> that's what I use at work, and 2. to challenge myself. I didn't
> realize how much I was going to have to learn so early into the setup.
> However, rebuilding RPMs has been something that intimidated me, and I
> always handed off to one of my direct reports.
> 
> Brandon, it turns out that the postfix RPM in the CentOS 5 base repo
> is not compiled with MySQL support, so that pretty much invalidated
> your guide for that version of CentOS. I've included my script for
> rebuilding the RPM with MySQL support. It can be found (without mail
> line wrapping) at http://dpaste.com/91687/
> 
> As always, I welcome anyone's thoughts.
> 
> ################
> #!/bin/bash
> 
> # Because the postfix offered by CentOS 5 is not built with MySQL
> support, we must compile it ourselves.
> 
> # My hope is that this process should work with other packages. So,
> I've built in a lot of flexability.
> 
> # Define the package you need to custom build:
> package=postfix
> specfile=rpmbuild/SOURCES/$package.spec
> # A base CentOS install doesn't define source repos. This will infer
> the url for the source RPM.
> url=$(yumdownloader --urls $package |sed
> '$!d;s?/os/.*/?/os/SRPMS/?;s/[^.]*\.rpm$/src.rpm/')
> 
> cd
> # Building in your $HOME instead of as root protects your system.
> # You must mimic the structure found in the default "topdir" of /usr/src/redhat
> for d in $(ls /usr/src/redhat); do mkdir -p  rpmbuild/$d; done
> # The rpmbuild command will take cues from the .rpmmacros file
> echo %_topdir  $HOME/rpmbuild >> .rpmmacros
> wget -P ~/rpmbuild/SRPMS $url
> ( cd rpmbuild/SOURCES; rpm2cpio ../SRPMS/${url##*/} | cpio -idmv )
> 
> # The following is the only part that is specific to postfix
> if [[ $package == 'postfix' ]];
> then
>     # Enable MySQL support
>     sed -i '/define MYSQL 0/s/0/1/' $specfile
>     # If you don't want to include the "Postfix MTA logfile summary"
> tool, do:    sed -i '/define PFLOGSUMM 1/s/1/0/' $specfile
> fi
> # If you build it...
> rpmbuild -bb --clean --rmspec --rmsource $specfile | tee /tmp/$package-build.log
> # ...they will come.
> sudo yum localinstall $(awk '/^Wrote: /{print $2;quit}' /tmp/$package-build.log)
> 
> # Uncomment the following to do some automatic clean up:
>      rm -rf ~/rpmbuild /tmp/$package-build.log
>      sed -i '$d' .rpmmacros
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