I don't usually rebuild debian packages, so this is just the result of random DDG'ing and seems authoritative for something close to what you are asking:
https://www.debian.org/doc/manuals/maint-guide/build.en.html On Fri, Jun 4, 2021 at 3:40 PM Keith Lofstrom <kei...@kl-ic.com> wrote: > > I'm attempting to add freetype support to libgd for debian > buster. What's the best way to replace or add a recompiled > library in debian? I can figure out the specifics, but I > do not yet understand "The Debian Way". > > ---- > > I've used the Scientific Linux variant of RedHat/CentOS > Long Term Support for many years, but now both are going > away. All that is going away due to BHMR (Butt Headed > Management Reversals), so I am attempting a transition to > Debian Buster, rebuilding shell scripts, and recompiling > many C language point tools I've built over the decades. > > I've built hundreds of "engineering animations" using libgd > to make png frames, then combined them into flash animations > and displayed those with firefox. I labelled the animations > with truetype fonts. > > All that Just Worked, mostly because many in the Scientific > Linux community did the same things. And now it Doesn't > Just Work. The SL community is scattering to the winds ... > some to $$$ Enterprise, some to Alma Linux, some to Debian, > and a few (including some small engineering businesses > disturbingly like mine) to involuntary shutdown. > > SL supported international collaborations that perform big > experiments at the Large Hadron Collider and LIGO and on > ISS, so this may impact science productivity for years - > and my productivity for many months. > > ---- > > The good news is that I have learned how to make animated > PNGs with "apngasm", and that works better than SWF. > That also simplifies the web pages in which I imbed the > animations, so this part of the transition is going well. > > But I'm tearing my hair out trying to understand and work > with all the variations of libgd. The builtin fonts for > libgd look like 1980's video game crap. I've added the > packages for truetype fonts, but libgd doesn't find them. > > Stock debian buster libgd (2.2.5-5.2) complains "libgd > was not built with freetype font support" ... /if/ I add > the package that converts return codes into error strings. > "bullseye" and "sid" use libgd 2.3.0-2 ... also not built > with freetype font support. That version of libgd also > seems to be called libgd3, which is confusing. > > It seems like the best way forwards is to recompile libgd > with freetype font support enabled, then replace the > system's libgd library ... but I don't know the right way > to do that, and my clumsy efforts could break other tools > and screw up updates and upgrades. > > So ... how do Debian Cool Kids recompile and upgrade > commonly used system libraries like libgd? > > Keith > > -- > Keith Lofstrom kei...@keithl.com
