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{ stdenv
, fetchurl
# Note: If `{ static = false; shared = false; }`, upstream's default is used
# (which is building both static and shared as of zlib 1.2.11).
, shared ? true
, 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 ? static
}:
assert splitStaticOutput -> static;
stdenv.mkDerivation (rec {
name = "zlib-${version}";
version = "1.2.11";
src = fetchurl {
urls =
[ "https://www.zlib.net/fossils/${name}.tar.gz" # stable archive path
"mirror://sourceforge/libpng/zlib/${version}/${name}.tar.gz"
];
sha256 = "c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1";
};
patches = stdenv.lib.optional stdenv.hostPlatform.isCygwin ./disable-cygwin-widechar.patch;
postPatch = stdenv.lib.optionalString stdenv.hostPlatform.isDarwin ''
substituteInPlace configure \
--replace '/usr/bin/libtool' 'ar' \
--replace 'AR="libtool"' 'AR="ar"' \
--replace 'ARFLAGS="-o"' 'ARFLAGS="-r"'
'';
outputs = [ "out" "dev" ]
++ stdenv.lib.optional splitStaticOutput "static";
setOutputFlags = false;
outputDoc = "dev"; # single tiny man3 page
# For zlib's ./configure (as of verion 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 `--shared`, only because that's
# what we did in the past and we can avoid mass rebuilds this way.
# As a result, we pass `--static` only when we want just static.
configureFlags = stdenv.lib.optional (static && !shared) "--static"
++ stdenv.lib.optional shared "--shared";
# 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 = stdenv.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.
+ stdenv.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.
+ stdenv.lib.optionalString (stdenv.hostPlatform.libc == "msvcrt") ''
ln -s zlib1.dll $out/bin/libz.dll
'';
# As zlib takes part in the stdenv building, we don't want references
# to the bootstrap-tools libgcc (as uses to happen on arm/mips)
NIX_CFLAGS_COMPILE = stdenv.lib.optionalString (!stdenv.hostPlatform.isDarwin) "-static-libgcc";
# We don't strip on static cross-compilation because of reports that native
# stripping corrupted the target library; see commit 12e960f5 for the report.
dontStrip = stdenv.hostPlatform != stdenv.buildPlatform && static;
configurePlatforms = [];
installFlags = stdenv.lib.optionals (stdenv.hostPlatform.libc == "msvcrt") [
"BINARY_PATH=$(out)/bin"
"INCLUDE_PATH=$(dev)/include"
"LIBRARY_PATH=$(out)/lib"
];
enableParallelBuilding = true;
doCheck = true;
makeFlags = [
"PREFIX=${stdenv.cc.targetPrefix}"
] ++ stdenv.lib.optionals (stdenv.hostPlatform.libc == "msvcrt") [
"-f" "win32/Makefile.gcc"
] ++ stdenv.lib.optionals shared [
# Note that as of writing (zlib 1.2.11), this flag only has an effect
# for Windows as it is specific to `win32/Makefile.gcc`.
"SHARED_MODE=1"
];
passthru = {
inherit version;
};
meta = with stdenv.lib; {
homepage = https://zlib.net;
description = "Lossless data-compression library";
license = licenses.zlib;
platforms = platforms.all;
};
} // stdenv.lib.optionalAttrs (stdenv.hostPlatform != stdenv.buildPlatform) {
preConfigure = ''
export CHOST=${stdenv.hostPlatform.config}
'';
} // stdenv.lib.optionalAttrs (stdenv.hostPlatform.libc == "msvcrt") {
dontConfigure = true;
})
|