mirror of
https://github.com/NixOS/nixpkgs.git
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229 lines
6.6 KiB
Nix
229 lines
6.6 KiB
Nix
let
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# inspircd ships a few extra modules that users can load
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# via configuration. Upstream thus recommends to ship as
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# many of them as possible. There is however a problem:
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# inspircd is licensed under the GPL version 2 only and
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# some modules link libraries that are incompatible with
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# the GPL 2. Therefore we can't provide them as binaries
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# via our binary-caches, but users should still be able
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# to override this package and build the incompatible
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# modules themselves.
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#
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# This means for us we need to a) prevent hydra from
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# building a module set with a GPL incompatibility
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# and b) dynamically figure out the largest possible
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# set of modules to use depending on stdenv, because
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# the used libc needs to be compatible as well.
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#
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# For an overview of all modules and their licensing
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# situation, see https://docs.inspircd.org/packaging/
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# Predicate for checking license compatibility with
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# GPLv2. Since this is _only_ used for libc compatibility
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# checking, only whitelist licenses used by notable
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# libcs in nixpkgs (musl and glibc).
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compatible = lib: drv:
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lib.any (lic: lic == (drv.meta.license or {})) [
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lib.licenses.mit # musl
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lib.licenses.lgpl2Plus # glibc
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];
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# compatible if libc is compatible
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libcModules = [
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"regex_posix"
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"sslrehashsignal"
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];
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# compatible if libc++ is compatible
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# TODO(sternenseemann):
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# we could enable "regex_stdlib" automatically, but only if
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# we are using libcxxStdenv which is compatible with GPLv2,
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# since the gcc libstdc++ license is GPLv2-incompatible
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libcxxModules = [
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"regex_stdlib"
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];
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compatibleModules = lib: stdenv: [
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# GPLv2 compatible dependencies
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"argon2"
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"ldap"
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"mysql"
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"pgsql"
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"regex_pcre"
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"regex_pcre2"
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"regex_re2"
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"regex_tre"
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"sqlite3"
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"ssl_gnutls"
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] ++ lib.optionals (compatible lib stdenv.cc.libc) libcModules;
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in
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{ lib
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, stdenv
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, fetchFromGitHub
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, nixosTests
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, perl
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, pkg-config
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, libargon2
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, openldap
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, postgresql
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, libmysqlclient
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, pcre
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, pcre2
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, tre
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, re2
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, sqlite
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, gnutls
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, libmaxminddb
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, openssl
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, mbedtls
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# For a full list of module names, see https://docs.inspircd.org/packaging/
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, extraModules ? compatibleModules lib stdenv
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}:
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let
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extras = {
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# GPLv2 compatible
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argon2 = [
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(libargon2 // {
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meta = libargon2.meta // {
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# use libargon2 as CC0 since ASL20 is GPLv2-incompatible
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# updating this here is important that meta.license is accurate
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# libargon2 is licensed under either ASL20 or CC0.
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license = lib.licenses.cc0;
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};
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})
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];
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ldap = [ openldap ];
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mysql = [ libmysqlclient ];
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pgsql = [ postgresql ];
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regex_pcre = [ pcre ];
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regex_pcre2 = [ pcre2 ];
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regex_re2 = [ re2 ];
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regex_tre = [ tre ];
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sqlite3 = [ sqlite ];
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ssl_gnutls = [ gnutls ];
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# depends on stdenv.cc.libc
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regex_posix = [];
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sslrehashsignal = [];
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# depends on used libc++
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regex_stdlib = [];
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# GPLv2 incompatible
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geo_maxmind = [ libmaxminddb ];
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ssl_mbedtls = [ mbedtls ];
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ssl_openssl = [ openssl ];
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};
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# buildInputs necessary for the enabled extraModules
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extraInputs = lib.concatMap
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(m: extras."${m}" or (builtins.throw "Unknown extra module ${m}"))
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extraModules;
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# if true, we can't provide a binary version of this
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# package without violating the GPL 2
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gpl2Conflict =
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let
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allowed = compatibleModules lib stdenv;
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in
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!lib.all (lib.flip lib.elem allowed) extraModules;
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# return list of the license(s) of the given derivation
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getLicenses = drv:
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let
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lics = drv.meta.license or [];
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in
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if lib.isAttrs lics || lib.isString lics
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then [ lics ]
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else lics;
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# Whether any member of list1 is also member of list2, i. e. set intersection.
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anyMembers = list1: list2:
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lib.any (m1: lib.elem m1 list2) list1;
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in
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stdenv.mkDerivation rec {
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pname = "inspircd";
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version = "3.16.0";
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src = fetchFromGitHub {
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owner = pname;
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repo = pname;
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rev = "v${version}";
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sha256 = "sha256-TKjUgy8S76gn9a9hbrWehb6BGI+dSFn1gYc0MCppyJk=";
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};
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outputs = [ "bin" "lib" "man" "doc" "out" ];
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nativeBuildInputs = [
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perl
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pkg-config
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];
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buildInputs = extraInputs;
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configurePhase = ''
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runHook preConfigure
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patchShebangs configure make/*.pl
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# configure is executed twice, once to set the extras
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# to use and once to do the Makefile setup
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./configure \
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--enable-extras \
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${lib.escapeShellArg (lib.concatStringsSep " " extraModules)}
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# this manually sets the flags instead of using configureFlags, because otherwise stdenv passes flags like --bindir, which make configure fail
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./configure \
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--disable-auto-extras \
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--distribution-label nixpkgs${version} \
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--uid 0 \
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--gid 0 \
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--binary-dir ${placeholder "bin"}/bin \
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--config-dir /etc/inspircd \
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--data-dir ${placeholder "lib"}/lib/inspircd \
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--example-dir ${placeholder "doc"}/share/doc/inspircd \
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--log-dir /var/log/inspircd \
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--manual-dir ${placeholder "man"}/share/man/man1 \
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--module-dir ${placeholder "lib"}/lib/inspircd \
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--runtime-dir /var/run \
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--script-dir ${placeholder "bin"}/share/inspircd \
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runHook postConfigure
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'';
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postInstall = ''
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# for some reasons the executables are not executable
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chmod +x $bin/bin/*
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'';
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enableParallelBuilding = true;
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passthru.tests = {
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nixos-test = nixosTests.inspircd;
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};
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meta = {
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description = "A modular C++ IRC server";
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license = [ lib.licenses.gpl2Only ]
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++ lib.concatMap getLicenses extraInputs
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++ lib.optionals (anyMembers extraModules libcModules) (getLicenses stdenv.cc.libc)
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# FIXME(sternenseemann): get license of used lib(std)c++ somehow
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++ lib.optional (anyMembers extraModules libcxxModules) "Unknown"
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# Hack: Definitely prevent a hydra from building this package on
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# a GPL 2 incompatibility even if it is not in a top-level attribute,
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# but pulled in indirectly somehow.
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++ lib.optional gpl2Conflict lib.licenses.unfree;
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maintainers = [ lib.maintainers.sternenseemann ];
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# windows is theoretically possible, but requires extra work
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# which I am not willing to do and can't test.
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# https://github.com/inspircd/inspircd/blob/master/win/README.txt
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platforms = lib.platforms.unix;
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homepage = "https://www.inspircd.org/";
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} // lib.optionalAttrs gpl2Conflict {
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# make sure we never distribute a GPLv2-violating module
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# in binary form. They can be built locally of course.
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hydraPlatforms = [];
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};
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}
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