63 lines
1.9 KiB
Nix
63 lines
1.9 KiB
Nix
{ lib, stdenv, fetchurl, findutils, fixDarwinDylibNames
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, sslSupport? true, openssl
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}:
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assert sslSupport -> openssl != null;
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stdenv.mkDerivation rec {
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pname = "libevent";
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version = "2.1.12";
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src = fetchurl {
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url = "https://github.com/libevent/libevent/releases/download/release-${version}-stable/libevent-${version}-stable.tar.gz";
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sha256 = "1fq30imk8zd26x8066di3kpc5zyfc5z6frr3zll685zcx4dxxrlj";
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};
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# libevent_openssl is moved into its own output, so that openssl isn't present
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# in the default closure.
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outputs = [ "out" "dev" ]
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++ lib.optional sslSupport "openssl"
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;
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outputBin = "dev";
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propagatedBuildOutputs = [ "out" ]
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++ lib.optional sslSupport "openssl"
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;
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nativeBuildInputs = []
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++ lib.optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames
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;
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buildInputs = []
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++ lib.optional sslSupport openssl
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++ lib.optional stdenv.isCygwin findutils
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;
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doCheck = false; # needs the net
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postInstall = lib.optionalString sslSupport ''
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moveToOutput "lib/libevent_openssl*" "$openssl"
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substituteInPlace "$dev/lib/pkgconfig/libevent_openssl.pc" \
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--replace "$out" "$openssl"
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sed "/^libdir=/s|$out|$openssl|" -i "$openssl"/lib/libevent_openssl.la
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'';
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enableParallelBuilding = true;
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meta = with lib; {
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description = "Event notification library";
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longDescription = ''
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The libevent API provides a mechanism to execute a callback function
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when a specific event occurs on a file descriptor or after a timeout
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has been reached. Furthermore, libevent also support callbacks due
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to signals or regular timeouts.
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libevent is meant to replace the event loop found in event driven
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network servers. An application just needs to call event_dispatch()
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and then add or remove events dynamically without having to change
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the event loop.
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'';
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homepage = "https://libevent.org/";
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license = licenses.bsd3;
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platforms = platforms.all;
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};
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}
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