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42 lines
1.3 KiB
XML
42 lines
1.3 KiB
XML
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<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xml:id="sec-language-coq">
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<title>Coq</title>
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<para>
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Coq libraries should be installed in
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<literal>$(out)/lib/coq/${coq.coq-version}/user-contrib/</literal>.
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Such directories are automatically added to the
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<literal>$COQPATH</literal> environment variable by the hook defined
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in the Coq derivation.
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</para>
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<para>
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Some libraries require OCaml and sometimes also Camlp5. The exact
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versions that were used to build Coq are saved in the
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<literal>coq.ocaml</literal> and <literal>coq.camlp5</literal>
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attributes.
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</para>
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<para>
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Here is a simple package example. It is a pure Coq library, thus it
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only depends on Coq. Its <literal>makefile</literal> has been
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generated using <literal>coq_makefile</literal> so we only have to
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set the <literal>$COQLIB</literal> variable at install time.
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</para>
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<programlisting>
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{stdenv, fetchurl, coq}:
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stdenv.mkDerivation {
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src = fetchurl {
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url = http://coq.inria.fr/pylons/contribs/files/Karatsuba/v8.4/Karatsuba.tar.gz;
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sha256 = "0ymfpv4v49k4fm63nq6gcl1hbnnxrvjjp7yzc4973n49b853c5b1";
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};
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name = "coq-karatsuba";
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buildInputs = [ coq ];
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installFlags = "COQLIB=$(out)/lib/coq/${coq.coq-version}/";
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}
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</programlisting>
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</section>
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