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[64-bit Windows 7/8/10/11] Easy Decomp Installer (NO WSL OR COMMAND LINE)

Anon822

  • Heavy Ball Poké Ball Great Ball Ultra Ball
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    • Seen Apr 22, 2025
    Easy Decomp Installer

    Have you ever wanted to use the decomps without the elaborate installation process? You're in the right place!
    I've packaged together everything you need to build the disassemblies and decomps into a single download with some scripts to make the installation process as simple as possible for Windows users.


    (The video is outdated)

    Download The Easy Decomp Installer

    Installation instructions:
    1. Download and extract the easy decomp installer. Make sure that the the file path at which you extract it doesn't contain any special characters or spaces.
    2. Run the included installer.exe program. Select the decomp or disassembly you want and click download.
    3. Wait for the decomp/disassembly to download and compile.

    If the process doesn't end in an error and you get a ROM file in the folder of the disassembly/decomp, you will have successfully setup the disassembly/decomp and you can start romhacking with it.

    The disassemblies/decomps are downloaded in the easy_decomp_installer folder. In addition to the source files and build artifacts, they will also contain two additional helper script files:
    _make.bat - Compiles the project applying any changes you've made to the source files to the ROM.
    _bash.bat - Opens a bash shell. You can use this to run command line tools like git or make.


    NOTE: Since this is using MSYS, compile times will be slower than with WSL, so the manual installation is still the better option if you aren't lazy or using Windows 7/8.
     
    Last edited:
    Are there any additional dependencies this needs? I got an error about pkg-config being missing, and then libpng.pc after I installed that. I'd love to be able to use this, but I can't without knowing what's required to set it up.
     
    Topaz Light said:
    Are there any additional dependencies this needs? I got an error about pkg-config being missing, and then libpng.pc after I installed that. I'd love to be able to use this, but I can't without knowing what's required to set it up.
    Click to expand...
    There should be no external dependencies whatsoever. I didn't include pkg-config because it wasn't actually necessary. As you can see, that error happens in the video too but the decomp still compiles fine.

    Is it actually preventing compilation for you and if so which decomp/disassembly are you having this problem with?
     
    Anon822 said:
    There should be no external dependencies whatsoever. I didn't include pkg-config because it wasn't actually necessary. As you can see, that error happens in the video too but the decomp still compiles fine.

    Is it actually preventing compilation for you and if so which decomp/disassembly are you having this problem with?
    Click to expand...
    Oops, I may have jumped the gun a bit. I assumed it had failed because the command line had stopped updating for a while, but it seems I just didn't wait enough. I'm using the vanilla pokeemerald disassembly (option 0). I went and tried it out again, actually waiting for it to work this time, and what happened was this. Worth noting that I do have pkg-config in the dependency folder in a place where it's being recognized, which is potentially interfering with things. I'm running Windows 10.

    [PokeCommunity.com] [64-bit Windows 7/8/10/11] Easy Decomp Installer (NO WSL OR COMMAND LINE)
     
    Topaz Light said:
    Oops, I may have jumped the gun a bit. I assumed it had failed because the command line had stopped updating for a while, but it seems I just didn't wait enough. I'm using the vanilla pokeemerald disassembly (option 0). I went and tried it out again, actually waiting for it to work this time, and what happened was this. Worth noting that I do have pkg-config in the dependency folder in a place where it's being recognized, which is potentially interfering with things. I'm running Windows 10.

    View attachment 108954
    Click to expand...
    I think the issue might be that the path to that folder contains an apostrophe (and spaces, which could also break something). Try placing it somewhere else.
     
    Anon822 said:
    I think the issue might be that the path to that folder contains an apostrophe (and spaces, which could also break something). Try placing it somewhere else.
    Click to expand...
    Well, dang. That was precisely it; I moved it to a space- and apostrophe-less filepath and it worked like a charm.

    Thanks for the help, and for the tool!
     
    It was brought to my attention that this was no longer working. I've now updated the download link and all the listed disassemblies and decomps should compile again. I updated the RGBDS binaries to 0.9.1 to make the GB/C disassemblies work again and included python 3.8 to make pokeemerald-expansion work again.

    As a bonus I also made a GUI for the installer:
    [PokeCommunity.com] [64-bit Windows 7/8/10/11] Easy Decomp Installer (NO WSL OR COMMAND LINE)
     
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