···

       
36
       
 
       
        # /etc/nixos/configuration.nix.  Do not edit it!

     

       
37
       
 
       
        build-users-group = nixbld

     

       
38
       
 
       
        build-max-jobs = ${toString (cfg.maxJobs)}

     

       
0
       
 
       

     

       
39
       
 
       
        build-use-chroot = ${if cfg.useChroot then "true" else "false"}

     

       
40
       
 
       
        build-chroot-dirs = ${toString cfg.chrootDirs} /bin/sh=${sh} $(echo $extraPaths)

     

       
41
       
 
       
        binary-caches = ${toString cfg.binaryCaches}

     
···

       
72
       
 
       
          set it to the number of CPUs in your system (e.g., 2 on an Athlon

     

       
73
       
 
       
          64 X2).

     

       
74
       
 
       
        ";

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
75
       
 
       
      };

     

       
76
       
 
       


     

       
77
       
 
       
      useChroot = mkOption {

     

···

       
36
       
 
       
        # /etc/nixos/configuration.nix.  Do not edit it!

     

       
37
       
 
       
        build-users-group = nixbld

     

       
38
       
 
       
        build-max-jobs = ${toString (cfg.maxJobs)}

     

       
39
       
+
       
        build-cores = ${toString (cfg.buildCores)}

     

       
40
       
 
       
        build-use-chroot = ${if cfg.useChroot then "true" else "false"}

     

       
41
       
 
       
        build-chroot-dirs = ${toString cfg.chrootDirs} /bin/sh=${sh} $(echo $extraPaths)

     

       
42
       
 
       
        binary-caches = ${toString cfg.binaryCaches}

     
···

       
73
       
 
       
          set it to the number of CPUs in your system (e.g., 2 on an Athlon

     

       
74
       
 
       
          64 X2).

     

       
75
       
 
       
        ";

     

       
76
       
+
       
      };

     

       
77
       
+
       


     

       
78
       
+
       
      buildCores = mkOption {

     

       
79
       
+
       
        type = types.int;

     

       
80
       
+
       
        default = 1;

     

       
81
       
+
       
        example = 64;

     

       
82
       
+
       
        description = ''

     

       
83
       
+
       
          This option defines the maximum number of concurrent tasks during

     

       
84
       
+
       
          one build. It affects, e.g., -j option for make. The default is 1.

     

       
85
       
+
       
          Some builds may become non-deterministic with this option; use with

     

       
86
       
+
       
          care! Packages will only be affected if enableParallelBuilding is

     

       
87
       
+
       
          set for them.

     

       
88
       
+
       
        '';

     

       
89
       
 
       
      };

     

       
90
       
 
       


     

       
91
       
 
       
      useChroot = mkOption {