in reply to Re^3: GD module has no support for animated gifs
in thread GD module has no support for animated gifs

I am on windows using strawberry perl. I don't know if it has a package manager. A long time ago i was using Activestate perl but then the GD came with the distribution so i never had to deal with this topic. I found some websites that have information on installing libgd so maybe ill sort it out.

  • Comment on Re^4: GD module has no support for animated gifs

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Re^5: GD module has no support for animated gifs
by marto (Cardinal) on Dec 23, 2025 at 13:22 UTC

    It looks like your Strawberry perl may be more than 10 years old? There are a great deal of additional external tools & libraries that have had many updates for security and other reasons since then. Same goes for Perl itself. You should consider upgrading.

[reply]
      I am confused. Why do you think the AM's Strawberry Perl is more than 10 years old? Strawberry's 5.42 PDL bundle comes with libgd which reports as 2.0303 with GD::LIBGD_VERSION (the numeric version) or 2.3.3 with GD::VERSION_STRING (the string version): 
      C:\Users\pryrt>perl -MGD -le "print for GD::LIBGD_VERSION, GD::VERSION
+_STRING"
2.0303
2.3.3

      [download]

      IOW, if GD::LIBGD_VERSION reports 2.0303, it is v2.3.3, which, AFAICT from https://github.com/libgd/libgd/releases, is the newest GD version available, and is almost a decade newer than the 2.0.33 (2.0033) that is the minimum required version. update: since that's what the AM's libgd is reporting, it's not truly a version issue.

      I think the right path to go down is trying to dig into which options Strawberry compiles into the libgd, because I know that some of the options are not necessarily on by default.

      A few years back, I know I figured out how to build my own, because the one that came with Strawberry hadn't enabled windows BMP (IIRC -- it may have been some different image type, but I think it was BMP). Unfortunately, I don't have access to the machine with that build anymore, and any notes I may have had are also apparently only on that machine, so lost to me.

      But my guess is that really, Perl-GD is seeing that libgd doesn't have animated GIF enabled in the build, and is incorrectly labling that as "library too old" rather that "option not enabled".

      I don't have time this week to dig in any deeper, but if others haven't made progress this week, I'll try looking at it after the holiday busyness has calmed down.

      update: cross out intro sentences, because partway through my answer, I answered my own question: you thought it was more than 10 years old because GD incorrectly claimed "libgd 2.0.33 or higher required for animated GIF support" despite being v2.3.3 on the AM's machine.
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