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{ lib, stdenv
, fetchurl
, shared ? !stdenv.hostPlatform.isStatic
, static ? true
# If true, a separate .static ouput is created and the .a is moved there.
# In this case `pkg-config` auto detection does not currently work if the
# .static output is given as `buildInputs` to another package (#66461), because
# the `.pc` file lists only the main output's lib dir.
# If false, and if `{ static = true; }`, the .a stays in the main output.
, splitStaticOutput ? shared && static
, testers
}:
# Without either the build will actually still succeed because the build
# system makes an arbitrary choice, but we shouldn't be so indecisive.
assert shared || static;
# Note: this package is used for bootstrapping fetchurl, and thus
# cannot use fetchpatch! All mutable patches (generated by GitHub or
# cgit) that are needed here should be included directly in Nixpkgs as
# files.
assert splitStaticOutput -> static;
stdenv.mkDerivation (finalAttrs: {
pname = "zlib";
version = "1.3";
src = let
inherit (finalAttrs) version;
in fetchurl {
urls = [
# This URL works for 1.2.13 only; hopefully also for future releases.
"https://github.com/madler/zlib/releases/download/v${version}/zlib-${version}.tar.gz"
# Stable archive path, but captcha can be encountered, causing hash mismatch.
"https://www.zlib.net/fossils/zlib-${version}.tar.gz"
];
hash = "sha256-/wukwpIBPbwnUws6geH5qBPNOd4Byl4Pi/NVcC76WT4=";
};
postPatch = lib.optionalString stdenv.hostPlatform.isDarwin ''
substituteInPlace configure \
--replace '/usr/bin/libtool' '${stdenv.cc.targetPrefix}ar' \
--replace 'AR="libtool"' 'AR="${stdenv.cc.targetPrefix}ar"' \
--replace 'ARFLAGS="-o"' 'ARFLAGS="-r"'
'';
strictDeps = true;
outputs = [ "out" "dev" ]
++ lib.optional splitStaticOutput "static";
setOutputFlags = false;
outputDoc = "dev"; # single tiny man3 page
dontConfigure = stdenv.hostPlatform.isMinGW;
preConfigure = lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) ''
export CHOST=${stdenv.hostPlatform.config}
'';
# For zlib's ./configure (as of version 1.2.11), the order
# of --static/--shared flags matters!
# `--shared --static` builds only static libs, while
# `--static --shared` builds both.
# So we use the latter order to be able to build both.
# Also, giving just `--shared` builds both,
# giving just `--static` builds only static,
# and giving nothing builds both.
# So we have 3 possible ways to build both:
# `--static --shared`, `--shared` and giving nothing.
# Of these, we choose `--static --shared`, for clarity and simpler
# conditions.
configureFlags = lib.optional static "--static"
++ lib.optional shared "--shared";
# We do the right thing manually, above, so don't need these.
dontDisableStatic = true;
dontAddStaticConfigureFlags = true;
# Note we don't need to set `dontDisableStatic`, because static-disabling
# works by grepping for `enable-static` in the `./configure` script
# (see `pkgs/stdenv/generic/setup.sh`), and zlib's handwritten one does
# not have such.
# It wouldn't hurt setting `dontDisableStatic = static && !splitStaticOutput`
# here (in case zlib ever switches to autoconf in the future),
# but we don't do it simply to avoid mass rebuilds.
postInstall = lib.optionalString splitStaticOutput ''
moveToOutput lib/libz.a "$static"
''
# jww (2015-01-06): Sometimes this library install as a .so, even on
# Darwin; others time it installs as a .dylib. I haven't yet figured out
# what causes this difference.
+ lib.optionalString stdenv.hostPlatform.isDarwin ''
for file in $out/lib/*.so* $out/lib/*.dylib* ; do
${stdenv.cc.bintools.targetPrefix}install_name_tool -id "$file" $file
done
''
# Non-typical naming confuses libtool which then refuses to use zlib's DLL
# in some cases, e.g. when compiling libpng.
+ lib.optionalString (stdenv.hostPlatform.isMinGW && shared) ''
ln -s zlib1.dll $out/bin/libz.dll
'';
# As zlib takes part in the stdenv building, we don't want references
# to the bootstrap-tools libgcc (as uses to happen on arm/mips)
env.NIX_CFLAGS_COMPILE = lib.optionalString (!stdenv.hostPlatform.isDarwin) "-static-libgcc";
# We don't strip on static cross-compilation because of reports that native
# stripping corrupted the target library; see commit 12e960f5 for the report.
dontStrip = stdenv.hostPlatform != stdenv.buildPlatform && static;
configurePlatforms = [];
installFlags = lib.optionals stdenv.hostPlatform.isMinGW [
"BINARY_PATH=$(out)/bin"
"INCLUDE_PATH=$(dev)/include"
"LIBRARY_PATH=$(out)/lib"
];
enableParallelBuilding = true;
doCheck = true;
makeFlags = [
"PREFIX=${stdenv.cc.targetPrefix}"
] ++ lib.optionals stdenv.hostPlatform.isMinGW [
"-f" "win32/Makefile.gcc"
] ++ lib.optionals shared [
# Note that as of writing (zlib 1.2.11), this flag only has an effect
# for Windows as it is specific to `win32/Makefile.gcc`.
"SHARED_MODE=1"
];
passthru.tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
meta = with lib; {
homepage = "https://zlib.net";
description = "Lossless data-compression library";
license = licenses.zlib;
platforms = platforms.all;
pkgConfigModules = [ "zlib" ];
};
})
|