···

       
26
       
 
       
      <replaceable>root</replaceable>

     

       
27
       
 
       
    </arg>

     

       
28
       
 
       
    <arg>

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
29
       
 
       
      <arg choice='plain'><option>--show-trace</option></arg>

     

       
30
       
 
       
    </arg>

     

       
31
       
 
       
    <arg>

     
···

       
94
       
 
       
        See the NIX_PATH environment variable for information on the semantics of the Nix search path.

     

       
95
       
 
       
        Paths added through <replaceable>-I</replaceable> take precedence over NIX_PATH.</para>

     

       
96
       
 
       
    </listitem>

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
97
       
 
       
  </varlistentry>

     

       
98
       
 
       


     

       
99
       
 
       
  <varlistentry>

     

···

       
26
       
 
       
      <replaceable>root</replaceable>

     

       
27
       
 
       
    </arg>

     

       
28
       
 
       
    <arg>

     

       
29
       
+
       
      <group choice='req'>

     

       
30
       
+
       
        <arg choice='plain'><option>--max-jobs</option></arg>

     

       
31
       
+
       
        <arg choice='plain'><option>-j</option></arg>

     

       
32
       
+
       
      </group>

     

       
33
       
+
       
      <replaceable>number</replaceable>

     

       
34
       
+
       
    </arg>

     

       
35
       
+
       
    <arg>

     

       
36
       
+
       
      <option>--cores</option>

     

       
37
       
+
       
      <replaceable>number</replaceable>

     

       
38
       
+
       
    </arg>

     

       
39
       
+
       
    <arg>

     

       
40
       
+
       
      <option>--option</option>

     

       
41
       
+
       
      <replaceable>name</replaceable>

     

       
42
       
+
       
      <replaceable>value</replaceable>

     

       
43
       
+
       
    </arg>

     

       
44
       
+
       
    <arg>

     

       
45
       
 
       
      <arg choice='plain'><option>--show-trace</option></arg>

     

       
46
       
 
       
    </arg>

     

       
47
       
 
       
    <arg>

     
···

       
110
       
 
       
        See the NIX_PATH environment variable for information on the semantics of the Nix search path.

     

       
111
       
 
       
        Paths added through <replaceable>-I</replaceable> take precedence over NIX_PATH.</para>

     

       
112
       
 
       
    </listitem>

     

       
113
       
+
       
  </varlistentry>

     

       
114
       
+
       


     

       
115
       
+
       
  <varlistentry><term><option>--max-jobs</option></term>

     

       
116
       
+
       
    <term><option>-j</option></term>

     

       
117
       
+
       
  

     

       
118
       
+
       
    <listitem><para>Sets the maximum number of build jobs that Nix will

     

       
119
       
+
       
    perform in parallel to the specified number. The default is <literal>1</literal>.

     

       
120
       
+
       
    A higher value is useful on SMP systems or to exploit I/O latency.</para></listitem>

     

       
121
       
+
       
  

     

       
122
       
+
       
  </varlistentry>

     

       
123
       
+
       
  

     

       
124
       
+
       
  

     

       
125
       
+
       
  <varlistentry><term><option>--cores</option></term>

     

       
126
       
+
       
  

     

       
127
       
+
       
    <listitem><para>Sets the value of the <envar>NIX_BUILD_CORES</envar>

     

       
128
       
+
       
    environment variable in the invocation of builders.  Builders can

     

       
129
       
+
       
    use this variable at their discretion to control the maximum amount

     

       
130
       
+
       
    of parallelism.  For instance, in Nixpkgs, if the derivation

     

       
131
       
+
       
    attribute <varname>enableParallelBuilding</varname> is set to

     

       
132
       
+
       
    <literal>true</literal>, the builder passes the

     

       
133
       
+
       
    <option>-j<replaceable>N</replaceable></option> flag to GNU Make.

     

       
134
       
+
       
    The value <literal>0</literal> means that the builder should use all

     

       
135
       
+
       
    available CPU cores in the system.</para></listitem>

     

       
136
       
+
       
  

     

       
137
       
+
       
  </varlistentry>

     

       
138
       
+
       


     

       
139
       
+
       
  <varlistentry><term><option>--option</option> <replaceable>name</replaceable> <replaceable>value</replaceable></term>

     

       
140
       
+
       


     

       
141
       
+
       
    <listitem><para>Set the Nix configuration option

     

       
142
       
+
       
    <replaceable>name</replaceable> to <replaceable>value</replaceable>.</para></listitem>

     

       
143
       
+
       


     

       
144
       
 
       
  </varlistentry>

     

       
145
       
 
       


     

       
146
       
 
       
  <varlistentry>

     

···

       
28
       
 
       
while [ "$#" -gt 0 ]; do

     

       
29
       
 
       
    i="$1"; shift 1

     

       
30
       
 
       
    case "$i" in

     

       
31
       
-
       
        -I)

     

       
32
       
-
       
            given_path="$1"; shift 1

     

       
33
       
-
       
            extraBuildFlags+=("$i" "$given_path")

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
34
       
 
       
            ;;

     

       
35
       
 
       
        --root)

     

       
36
       
 
       
            mountPoint="$1"; shift 1

     

···

       
28
       
 
       
while [ "$#" -gt 0 ]; do

     

       
29
       
 
       
    i="$1"; shift 1

     

       
30
       
 
       
    case "$i" in

     

       
31
       
+
       
        --max-jobs|-j|--cores|-I)

     

       
32
       
+
       
            j="$1"; shift 1

     

       
33
       
+
       
            extraBuildFlags+=("$i" "$j")

     

       
34
       
+
       
            ;;

     

       
35
       
+
       
        --option)

     

       
36
       
+
       
            j="$1"; shift 1

     

       
37
       
+
       
            k="$1"; shift 1

     

       
38
       
+
       
            extraBuildFlags+=("$i" "$j" "$k")

     

       
39
       
 
       
            ;;

     

       
40
       
 
       
        --root)

     

       
41
       
 
       
            mountPoint="$1"; shift 1