fix(codspeed): suppress warnings, but still show them with cargo

Author: not-matthias

crates/codspeed/build.rs

@@ -15,6 +15,19 @@ fn main() {
         .flag("-std=c11")
         .file("instrument-hooks/dist/core.c")
         .include("instrument-hooks/includes")
+        // We generated the C code from Zig, which contains some warnings
+        // that can be safely ignored.
+        .flag("-Wno-uninitialized")
+        .flag("-Wno-unused-variable")
+        .flag("-Wno-unused-parameter")
+        .flag("-Wno-unused-but-set-variable")
+        .flag("-Wno-type-limits")
+        .flag("-Wno-format")
+        .flag("-Wno-format-security")
+        .flag("-Wno-builtin-declaration-mismatch")
+        .flag("-Wno-overflow")
+        // Not supported in clang: https://stackoverflow.com/a/41673702
+        .flag_if_supported("-Wno-maybe-uninitialized")
         .warnings(false)
         .extra_warnings(false)
         .cargo_warnings(false);