From: Patrick Steinhardt Date: Thu, 24 Sep 2026 14:09:12 GMT Subject: [PATCH 3/7] meson: use precompiled headers for our test-helper Message-ID: <20260924-pks-meson-improvements-v1-3-90b7f79f1c4e@pks.im> In-Reply-To: <20260924-pks-meson-improvements-v1-0-90b7f79f1c4e@pks.im> In 671df48df8 (meson: precompile "git-compat-util.h", 2026-03-19) we have introduced support for precompiled headers into Meson. At that time though we only converted "libgit.a" to make use of those. Nowadays though, our test-helper also consists of a bunch of code files, and all of these include "git-compat-util.h" via "test-tool.h" as the first header. So they're a natural target to also use precompiled headers. Adapt the test-tool executable to make use of them, which results in a surprisingly large speedup for clean builds: Benchmark 1: meson compile (version = HEAD~) Time (mean ± σ): 6.363 s ± 0.033 s [User: 92.858 s, System: 22.500 s] Range (min … max): 6.311 s … 6.418 s 10 runs Benchmark 2: meson compile (version = HEAD) Time (mean ± σ): 5.327 s ± 0.021 s [User: 75.135 s, System: 20.373 s] Range (min … max): 5.299 s … 5.362 s 10 runs Summary meson compile (version = HEAD) ran 1.19 ± 0.01 times faster than meson compile (version = HEAD~) Signed-off-by: Patrick Steinhardt --- t/helper/meson.build | 1 + 1 file changed, 1 insertion(+) diff --git a/t/helper/meson.build b/t/helper/meson.build index 3235f10ab8..ae513b4cdc 100644 --- a/t/helper/meson.build +++ b/t/helper/meson.build @@ -83,6 +83,7 @@ test_tool_sources = [ test_tool = executable('test-tool', sources: test_tool_sources, + c_pch: '../../tools/precompiled.h', dependencies: [libgit_commonmain], ) bin_wrappers += test_tool -- 2.56.0.rc2.329.gd58861e689.dirty