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| author | Ivan Shapovalov <intelfx@intelfx.name> | 2023-12-22 09:51:17 +0300 |
|---|---|---|
| committer | Ivan Shapovalov <intelfx@intelfx.name> | 2023-12-22 11:41:54 +0300 |
| commit | ae818d9579bc521f2281237986ceb4fdb8827ede (patch) | |
| tree | eb5b38ac0ab81abad88f3ef7d5a73bc8a7dfb825 /.bcachefs_revision | |
| parent | eaca023d5379bcf8f31a7a83ded985fe1565fc58 (diff) | |
Makefile: avoid recursively expanding expensive variables
Specifically, do not recursively expand $(CFLAGS) because this leads to
repeatedly performing compile tests (e. g. cc-disable-warning) on every
recipe execution.
Without (nproc=32):
```
$ time env -i PATH=/usr/bin BCACHEFS_FUSE=1 NO_RUST=1 make -j$(nproc)
<...>
[LD] bcachefs
72,48s user 11,29s system 190% cpu 44,036 total
```
With:
```
$ time env -i PATH=/usr/bin BCACHEFS_FUSE=1 NO_RUST=1 make -j$(nproc)
<...>
[LD] bcachefs
66,79s user 5,17s system 1955% cpu 3,679 total
```
Diffstat (limited to '.bcachefs_revision')
0 files changed, 0 insertions, 0 deletions