Merge pull request #34207 from dtzWill/fix/busybox-misc

busybox: bump copybuf, disable utmp/wtmp when not supported (musl)

pkgs/os-specific/linux/busybox/default.nix

@@ -1,11 +1,13 @@
 { stdenv, lib, buildPackages, fetchurl, fetchpatch
 , enableStatic ? false
 , enableMinimal ? false
-, useMusl ? false, musl
+, useMusl ? stdenv.hostPlatform.libc == "musl", musl
 , extraConfig ? ""
 , buildPlatform, hostPlatform
 }:
 
+assert stdenv.hostPlatform.libc == "musl" -> useMusl;
+
 let
   configParser = ''
     function parseconfig {
@@ -24,6 +26,10 @@ let
     }
   '';
 
+  libcConfig = lib.optionalString useMusl ''
+    CONFIG_FEATURE_UTMP n
+    CONFIG_FEATURE_WTMP n
+  '';
 in
 
 stdenv.mkDerivation rec {
@@ -67,8 +73,12 @@ stdenv.mkDerivation rec {
     # Set paths for console fonts.
     CONFIG_DEFAULT_SETFONT_DIR "/etc/kbd"
 
+    # Bump from 4KB, much faster I/O
+    CONFIG_FEATURE_COPYBUF_KB 64
+
     ${extraConfig}
     CONFIG_CROSS_COMPILER_PREFIX "${stdenv.cc.targetPrefix}"
+    ${libcConfig}
     EOF
 
     make oldconfig