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nixpkgs/pkgs/data/misc/tzdata/default.nix

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Nix

{ lib, stdenv, fetchurl, buildPackages }:
stdenv.mkDerivation rec {
pname = "tzdata";
version = "2021a";
srcs =
[ (fetchurl {
url = "https://data.iana.org/time-zones/releases/tzdata${version}.tar.gz";
sha256 = "022fn6gkmp7pamlgab04x0dm5hnyn2m2fcnyr3pvm36612xd5rrr";
})
(fetchurl {
url = "https://data.iana.org/time-zones/releases/tzcode${version}.tar.gz";
sha256 = "1l02b0jiwp3fl0xd6227i69d26rmx3yrnq0ssq9vvdmm4jhvyipb";
})
];
sourceRoot = ".";
outputs = [ "out" "bin" "man" "dev" ];
propagatedBuildOutputs = [];
makeFlags = [
"TOPDIR=$(out)"
"TZDIR=$(out)/share/zoneinfo"
"BINDIR=$(bin)/bin"
"ZICDIR=$(bin)/bin"
"ETCDIR=$(TMPDIR)/etc"
"TZDEFAULT=$(TMPDIR)/etc"
"LIBDIR=$(dev)/lib"
"MANDIR=$(man)/share/man"
"AWK=awk"
"CFLAGS=-DHAVE_LINK=0"
"CFLAGS+=-DZIC_BLOAT_DEFAULT=\\\"fat\\\""
"cc=${stdenv.cc.targetPrefix}cc"
"AR=${stdenv.cc.targetPrefix}ar"
];
depsBuildBuild = [ buildPackages.stdenv.cc ];
doCheck = false; # needs more tools
installFlags = [ "ZIC=./zic-native" ];
preInstall = ''
mv zic.o zic.o.orig
mv zic zic.orig
make $makeFlags cc=${stdenv.cc.nativePrefix}cc AR=${stdenv.cc.nativePrefix}ar zic
mv zic zic-native
mv zic.o.orig zic.o
mv zic.orig zic
'';
postInstall =
''
rm $out/share/zoneinfo-posix
mkdir $out/share/zoneinfo/posix
( cd $out/share/zoneinfo/posix; ln -s ../* .; rm posix )
mv $out/share/zoneinfo-leaps $out/share/zoneinfo/right
mkdir -p "$dev/include"
cp tzfile.h "$dev/include/tzfile.h"
'';
setupHook = ./tzdata-setup-hook.sh;
meta = with lib; {
homepage = "http://www.iana.org/time-zones";
description = "Database of current and historical time zones";
changelog = "https://github.com/eggert/tz/blob/${version}/NEWS";
license = with licenses; [
bsd3 # tzcode
publicDomain # tzdata
];
platforms = platforms.all;
maintainers = with maintainers; [ fpletz ];
};
}