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===== Build Debian MariaDB packages with readline support =====

I've been frustrated with the use of editline (libedit) instead of readline that MariaDB is now built with in Debian 11. I have found editline to be buggy: its implementation of Ctrl-R and editing of wrapped lines do not work well, plus Ctrl-W not being mapping to delete a word by default is infuriating!

As I understand it, Debian is no longer able to distribute MariaDB built against readline as the former is GPL2 and the latter GPL3, and apparently the 2 are incompatible for distribution.

The following instructions build a new Debian packages against readline:

  apt install build-essential devscripts libreadline-dev
  apt build-dep mariadb-client-core-10.5
  apt build-dep libreadline-dev
  su <unpriv user>
  apt source mariadb-client-core-10.5
  cd mariadb-10.5-10.5.19/

For Bookworm:

  apt install build-essential devscripts libreadline-dev
  apt build-dep mariadb
  apt build-dep readline
  su <unpriv user>
  apt source mariadb
  cd mariadb-10.11.6/
  
Edit ''debian/changelog'' and add new line at top. Version number should be incremented by adding a letter on the end. E.g.

  mariadb-10.5 (1:10.5.19-0+deb11u2c) bullseye; urgency=medium
  
    * Build against readline instead of libedit
  
   -- Andy Beverley <andy@andybev.com>  Tue, 22 Aug 2023 14:08:00 +0100

Edit ''debian/control'' and change:

  libedit-dev,
  libedit-dev:native,

To

  libreadline-dev,
  libreadline-dev:native,

Edit ''debian/rules'' and add ''-DNOT_FOR_DISTRIBUTION=1'' below ''-DWITH_INNODB_SNAPPY=ON''. Then run:

For Bookworm edit ''cmake/aws_sdk.cmake'' and change ''NOT_FOR_DISTRIBUTION'' to ''NOT_FOR_DISTRIBUTION1'' (this is to stop the AWS SDK from being included which causes the build to fail.

  debuild -uc -us -b