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reword section on make variables 

- use one line per sentence
- use imperative for instructions
- add link to Make documentation
This commit is contained in:
Valentin Gagarin 2024-01-17 04:39:26 +01:00
parent f134dbdffb
commit 28eb406834
1 changed files with 8 additions and 9 deletions
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doc/manual/src/contributing/hacking.md
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@ -113,11 +113,9 @@ You can also build Nix for one of the [supported platforms](#platforms).
## Makefile variables
You may need `profiledir=$out/etc/profile.d` and `sysconfdir=$out/etc` to run
`make install`.
You may need `profiledir=$out/etc/profile.d` and `sysconfdir=$out/etc` to run `make install`.
You may want to set `MAKEFLAGS="-e -j $NIX_BUILD_CORES"` to allow environment
variables to override `Makefile` variables.
Run `make` with [`--environment-overrides`](https://www.gnu.org/software/make/manual/make.html#index-_002de) to allow environment variables to override `Makefile` variables:
- `ENABLE_BUILD=yes` to enable building the C++ code.
- `ENABLE_DOC_GEN=yes` to enable building the documentation (manual, man pages, etc.).
@ -126,11 +124,12 @@ variables to override `Makefile` variables.
- `ENABLE_FUNCTIONAL_TESTS=yes` to enable building the functional tests.
- `ENABLE_UNIT_TESTS=yes` to enable building the unit tests.
- `OPTIMIZE=1` to enable optimizations.
- `libraries=libutil programs=` to only build a specific library (this will
fail in the linking phase if you don't have the other libraries built, but is
useful for checking types).
- `libraries= programs=nix` to only build a specific program (this will not, in
general, work, because the programs need the libraries).
- `libraries=libutil programs=` to only build a specific library.
This will fail in the linking phase if the other libraries haven't been built, but is useful for checking types.
- `libraries= programs=nix` to only build a specific program.
This will not work in general, because the programs need the libraries.
## Platforms