52 lines
2 KiB
XML
52 lines
2 KiB
XML
<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 <literal>$(out)/lib/coq/${coq.coq-version}/user-contrib/</literal>. Such directories are automatically added to the <literal>$COQPATH</literal> environment variable by the hook defined in the Coq derivation.
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</para>
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<para>
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Some extensions (plugins) might require OCaml and sometimes other OCaml packages. The <literal>coq.ocamlPackages</literal> attribute can be used to depend on the same package set Coq was built against.
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</para>
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<para>
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Coq libraries may be compatible with some specific versions of Coq only. The <literal>compatibleCoqVersions</literal> attribute is used to precisely select those versions of Coq that are compatible with this derivation.
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</para>
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<para>
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Here is a simple package example. It is a pure Coq library, thus it depends on Coq. It builds on the Mathematical Components library, thus it also takes <literal>mathcomp</literal> as <literal>buildInputs</literal>. Its <literal>Makefile</literal> has been generated using <literal>coq_makefile</literal> so we only have to set the <literal>$COQLIB</literal> variable at install time.
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</para>
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<programlisting>
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{ stdenv, fetchFromGitHub, coq, mathcomp }:
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stdenv.mkDerivation rec {
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name = "coq${coq.coq-version}-multinomials-${version}";
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version = "1.0";
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src = fetchFromGitHub {
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owner = "math-comp";
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repo = "multinomials";
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rev = version;
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sha256 = "1qmbxp1h81cy3imh627pznmng0kvv37k4hrwi2faa101s6bcx55m";
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};
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buildInputs = [ coq ];
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propagatedBuildInputs = [ mathcomp ];
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installFlags = "COQLIB=$(out)/lib/coq/${coq.coq-version}/";
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meta = {
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description = "A Coq/SSReflect Library for Monoidal Rings and Multinomials";
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inherit (src.meta) homepage;
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license = stdenv.lib.licenses.cecill-b;
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inherit (coq.meta) platforms;
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};
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passthru = {
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compatibleCoqVersions = v: builtins.elem v [ "8.5" "8.6" "8.7" ];
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};
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}
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</programlisting>
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</section>
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