mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-30 01:26:15 +02:00
60 lines
2.2 KiB
XML
60 lines
2.2 KiB
XML
|
<chapter xmlns="http://docbook.org/ns/docbook"
|
||
|
|
xmlns:xlink="http://www.w3.org/1999/xlink"
|
||
|
|
xmlns:xi="http://www.w3.org/2001/XInclude"
|
||
|
|
version="5.0"
|
||
|
|
xml:id='sec-standard-environment'>
|
||
|
|
|
||
|
|
<title>The Standard Environment</title>
|
||
|
|
|
||
|
|
|
||
|
|
<para>The standard environment is used by passing it as an input
|
||
|
|
called <envar>stdenv</envar> to the derivation, and then doing
|
||
|
|
|
||
|
|
<programlisting>
|
||
|
|
source $stdenv/setup</programlisting>
|
||
|
|
|
||
|
|
at the top of the builder.</para>
|
||
|
|
|
||
|
|
<para>Apart from adding the aforementioned commands to the
|
||
|
|
<envar>PATH</envar>, <filename>setup</filename> also does the
|
||
|
|
following:
|
||
|
|
|
||
|
|
<itemizedlist>
|
||
|
|
|
||
|
|
<listitem><para>All input packages specified in the
|
||
|
|
<envar>buildInputs</envar> environment variable have their
|
||
|
|
<filename>/bin</filename> subdirectory added to <envar>PATH</envar>,
|
||
|
|
their <filename>/include</filename> subdirectory added to the C/C++
|
||
|
|
header file search path, and their <filename>/lib</filename>
|
||
|
|
subdirectory added to the linker search path. This can be extended.
|
||
|
|
For instance, when the <command>pkgconfig</command> package is
|
||
|
|
used, the subdirectory <filename>/lib/pkgconfig</filename> of each
|
||
|
|
input is added to the <envar>PKG_CONFIG_PATH</envar> environment
|
||
|
|
variable.</para></listitem>
|
||
|
|
|
||
|
|
<listitem><para>The environment variable
|
||
|
|
<envar>NIX_CFLAGS_STRIP</envar> is set so that the compiler strips
|
||
|
|
debug information from object files. This can be disabled by
|
||
|
|
setting <envar>NIX_STRIP_DEBUG</envar> to
|
||
|
|
<literal>0</literal>.</para></listitem>
|
||
|
|
|
||
|
|
</itemizedlist>
|
||
|
|
|
||
|
|
</para>
|
||
|
|
|
||
|
|
<para>The <filename>setup</filename> script also exports a function
|
||
|
|
called <function>genericBuild</function> that knows how to build
|
||
|
|
typical Autoconf-style packages. It can be customised to perform
|
||
|
|
builds for any type of package. It is advisable to use
|
||
|
|
<function>genericBuild</function> since it provides facilities that
|
||
|
|
are almost always useful such as unpacking of sources, patching of
|
||
|
|
sources, nested logging, etc.</para>
|
||
|
|
|
||
|
|
<para>The definitive, up-to-date documentation of the generic builder
|
||
|
|
is the source itself, which resides in
|
||
|
|
<filename>pkgs/stdenv/generic/setup.sh</filename>.</para>
|
||
|
|
|
||
|
|
<xi:include href="custom-builder.xml" />
|
||
|
|
<xi:include href="debug-build.xml" />
|
||
|
|
|
||
|
|
</chapter>
|