cmake options

-DHAVE_VULKAN=OFF -DHAVE_GLES2=ON -DDYN_OPENAL=OFF -DBUILD_SHARED_LIBS=OFF -DHAVE_VM_JIT=OFF -DNO_GTK=ON -DDYN_GTK=OFF -DNO_OPENAL=OFF -DDYN_SNDFILE=OFF -DDYN_MPG123=OFF

If you need not just midi support build libsndfile.

Also it might require manual gzdoom.js library patching:

        case 0x1025 /* AL_SAMPLE_OFFSET */:
          var offset = AL.sourceTell(src);
          if (offset > 0.0) {
            offset *= src.bufQueue[0].frequency;
          }
          return Math.round(offset); // !here: operation with numbers in js format sometimes leads to values like xxx.99999999998 
                                     // and we don't want write floats into int output

Copyright (c) 1998-2025 ZDoom + GZDoom teams, and contributors

Doom Source (c) 1997 id Software, Raven Software, and contributors

Please see license files for individual contributor licenses

Special thanks to Coraline of the EDGE team for allowing us to use her README.md as a template for this one.

To build GZDoom, please see the wiki and see the "Programmer's Corner" on the bottom-right corner of the page to build for your platform.

• https://zdoom.org/ - Home Page
• https://forum.zdoom.org/ - Forum
• https://zdoom.org/wiki/ - Wiki
• https://dsc.gg/zdoom - Discord Server
• https://docs.google.com/spreadsheets/d/1pvwXEgytkor9SClCiDn4j5AH7FedyXS-ocCbsuQIXDU/edit?usp=sharing - Translation sheet (Google Docs)