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Ericson2314 merged 1 commit into from
Dec 15, 2025
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dev-shell: Set mesonBuildType to debugoptimized #14798

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9 changes: 1 addition & 8 deletions doc/manual/source/development/debugging.md
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Expand Up @@ -6,14 +6,7 @@ Additionally, see [Testing Nix](./testing.md) for further instructions on how to

## Building Nix with Debug Symbols

In the development shell, set the `mesonBuildType` environment variable to `debug` before configuring the build:

```console
[nix-shell]$ export mesonBuildType=debugoptimized
```

Then, proceed to build Nix as described in [Building Nix](./building.md).
This will build Nix with debug symbols, which are essential for effective debugging.
In the development shell, `mesonBuildType` is set automatically to `debugoptimized`. This builds Nix with debug symbols, which are essential for effective debugging.

It is also possible to build without optimization for faster build:

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3 changes: 3 additions & 0 deletions packaging/dev-shell.nix
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Expand Up @@ -258,10 +258,13 @@ pkgs.nixComponents2.nix-util.overrideAttrs (

# We use this shell with the local checkout, not unpackPhase.
src = null;

# Workaround https://sourceware.org/pipermail/gdb-patches/2025-October/221398.html
# Remove when gdb fix is rolled out everywhere.
separateDebugInfo = false;

mesonBuildType = "debugoptimized";

env = {
# For `make format`, to work without installing pre-commit
_NIX_PRE_COMMIT_HOOKS_CONFIG = "${(pkgs.formats.yaml { }).generate "pre-commit-config.yaml"
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