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Install InspIRCd 4 from source

When there is no package for your OS (or you want a custom build), compile from source.

Official guide:
docs.inspircd.org — Source installation (https://docs.inspircd.org/4/installation/source/)

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1. Supported systems

• Recent Linux (GCC 7+ or Clang 5+)
• Recent BSD
• Recent macOS (AppleClang / Clang / GCC)

Windows native builds use a separate guide; this post is for UNIX-like systems.

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2. Dependencies

Debian / Ubuntu:
sudo apt-get update
sudo apt-get install build-essential pkg-config wget

Add development headers for any extra modules you want (OpenSSL, etc.), for example:
sudo apt-get install libssl-dev

RHEL-like: install the "Development Tools" group plus needed [tt]-devel[/tt] packages.

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3. Download the source

Release tarball (recommended):
wget "https://github.com/inspircd/inspircd/archive/refs/tags/v4.12.1.tar.gz"
tar -xvf ./v4.12.1.tar.gz
cd inspircd-4.12.1

Or latest Git (insp4 branch):
git clone --branch insp4 https://github.com/inspircd/inspircd.git
cd inspircd


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4. Configure

./configure

You will be asked about:

• Install paths (default: self-contained under your home directory)
• Extra modules (auto-detect dependencies, or choose manually)
• Optional self-signed TLS cert for testing

Press Enter to accept defaults, or answer [tt]no[/tt] and set custom paths/modules.

Enable extras later if needed:
./configure --enable-extras modulename


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5. Compile & install

make install

On modern hardware this usually finishes in a few minutes.

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6. Configure & start

Go to your install directory (often something like [tt]~/inspircd[/tt] if you used defaults), edit the config, then start the binary according to the paths you chose.

Configuration reference:
InspIRCd 4 configuration (https://docs.inspircd.org/4/configuration)

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Quick reference

sudo apt-get install build-essential pkg-config wget libssl-dev
wget "https://github.com/inspircd/inspircd/archive/refs/tags/v4.12.1.tar.gz"
tar -xvf ./v4.12.1.tar.gz
cd inspircd-4.12.1
./configure
make install


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Source: InspIRCd 4 — Source installation (https://docs.inspircd.org/4/installation/source/)

Check releases (https://github.com/inspircd/inspircd/releases) for a newer [tt]v4.x.x[/tt] and adjust the version in the wget URL. Errors during [tt]./configure[/tt] or [tt]make[/tt]? Post the full output.