build(nix): allow overriding TARGET_CPU

2026-05-26 20:49:55 +00:00 · 2026-05-11 15:05:57 +02:00
parent b4e104925d
commit 388cbeb60e
2 changed files with 12 additions and 6 deletions
@@ -22,11 +22,13 @@
          rustflags = "--cfg reqwest_unstable";
        };
        # users may also override this with other cargo profiles to build for other feature sets
-        #
-        # other examples include:
-        #
-        # - release-high-perf
-        max-perf = self'.packages.default.override {
+        # for features configuration see `default` package which enables http3 by default
+
+        # example: different compilation profile and different target_cpu
+        max-perf-haswell = self'.packages.default.override {
+          # compiles explicitly for haswell arch cpus
+          target_cpu = "haswell";
+          # compiles slower but with more thorough optimizations
          profile = "release-max-perf";
        };
      };