set go optimization flag

utils.go

@@ -726,15 +726,13 @@ func setupMakepkg(march string) error {
 		makepkgStr = strings.ReplaceAll(makepkgStr, " check ", " !check ")
 	}
 	makepkgStr = strings.ReplaceAll(makepkgStr, " color ", " !color ")
+	// set Go optimization flag
+	makepkgStr = strings.ReplaceAll(makepkgStr, "LDFLAGS=", "GOAMD64="+march[len(march)-2:]+\nLDFLAGS=")
 	// Add align-functions=32, see https://github.com/InBetweenNames/gentooLTO/issues/164 for more
 	makepkgStr = strings.ReplaceAll(makepkgStr, "-O2", "-O3 -falign-functions=32 -mpclmul -fdevirtualize-at-ltrans")
 	makepkgStr = strings.ReplaceAll(makepkgStr, "#MAKEFLAGS=\"-j2\"", "MAKEFLAGS=\"-j"+strconv.Itoa(conf.Build.Makej)+"\"")
 	makepkgStr = reMarch.ReplaceAllString(makepkgStr, "${1}"+march)
 	makepkgStr = strings.ReplaceAll(makepkgStr, "#PACKAGER=\"John Doe <john@doe.com>\"", "PACKAGER=\"ALHP "+march+" <alhp@harting.dev>\"")
-	// enable rust flags and patch them
-	makepkgStr = strings.ReplaceAll(makepkgStr, "#RUSTFLAGS=", "RUSTFLAGS=")
-	makepkgStr = strings.ReplaceAll(makepkgStr, "-C opt-level=2", "-C opt-level=3")
-	makepkgStr = strings.ReplaceAll(makepkgStr, "-C opt-level=3", "-C opt-level=3 -C target-cpu="+march+" -C lto=fat -C codegen-units=1 -C strip=symbols -C linker-plugin-lto")
 
 	// write makepkg
 	err = os.WriteFile(lMakepkg, []byte(makepkgStr), 0644)