Ghostty build.zig bzip2 not found on Ubuntu 24.04

[anjandev]

I tried building ghostty v1.0.0 on Ubuntu 24.04 and zig could not find the bzip2 library unless I made the following changed this line: https://github.com/ghostty-org/ghostty/blob/v1.0.0/build.zig#L1067

change from

step.linkSystemLibrary2("bzip2", dynamic_link_opts);

change to

step.linkSystemLibrary2("bz2", dynamic_link_opts);

Is this a known issue? Reporting here just in case someone else runs into this problem.

[zacuke]

I had to run sudo ln -s /usr/lib/x86_64-linux-gnu/libbz2.so /usr/lib/x86_64-linux-gnu/libbzip2.so to fix this up outside the ghostty code.

I have main checked out. When I try to run the compile for packages, I get an error

error: unable to find dynamic system library 'bzip2' using strategy 'mode_first'. searched paths:
  /usr/lib/x86_64-linux-gnu/libbzip2.so
  ...

Which led me to trying that ln command.

"bz2" seems to be correct, but yet things build correctly with "bzip2" when you run zig build, but when you use the compile for packages example, the missing library error pops up.

Seems to be related to --system and just removing that line step.linkSystemLibrary2("bzip2", dynamic_link_opts); seems to be the correct fix. It will build both with and without --system after you remove that line.

It works with bz2 because I think that is the correct string, but when you run zig build without the --system option, I think it branches into the else statement, and the erroneous bzip2 is never even used.

        if (b.systemIntegrationOption("freetype", .{})) {
            //i think remove below line or at least change it to "bz2" if it really is needed in some cases
            //step.linkSystemLibrary2("bzip2", dynamic_link_opts);
            step.linkSystemLibrary2("freetype2", dynamic_link_opts);
        } else {
            step.linkLibrary(freetype_dep.artifact("freetype"));
            try static_libs.append(freetype_dep.artifact("freetype").getEmittedBin());
        }