anchor.diff:  
       CONFIG_LFS y
   
  -    ${stdenv.lib.optionalString enableStatic ''
  +    ${lib.optionalString enableStatic ''
         CONFIG_STATIC y
       ''}
   
  
positive.code: { stdenv, fetchurl, musl
  , enableStatic ? false
  , enableMinimal ? false
  , useMusl ? false
  
negative.code:     EOF
  
      make oldconfig
    '' + lib.optionalString useMusl ''
      makeFlagsArray+=("CC=gcc -isystem ${musl}/include -B${musl}/lib -L${musl}/lib")
    '';
  
    buildInputs = lib.optionals (enableStatic && !useMusl) [ glibc glibc.static ];
  
    crossAttrs = {
      extraCrossConfig = ''
  