forked from mirrors/nixpkgs
bda6618bb6
The main explanation was taken from commit:
e999def1 zlib: clean up static/shared distincion
The `SHARED_MODE=1` bit was originally introduced in commit:
0bfc84b0 Cross-compile zlib for Windows
108 lines
3.8 KiB
Nix
108 lines
3.8 KiB
Nix
{ stdenv
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, fetchurl
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# Regarding static/shared libaries, the current behaviour is:
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#
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# - static=true, shared=true: builds both and moves .a to the .static output;
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# in this case `pkg-config` auto detection will
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# not work if the .static output is given as
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# buildInputs to another package (#66461)
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# - static=true, shared=false: builds .a only and leaves it in the main output
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# - static=false, shared=true: builds shared only
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#
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# To get both `.a` and shared libraries in one output,
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# you currently have to use
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# static=false, shared=true
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# and use
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# .overrideAttrs (old: { dontDisableStatic = true; })
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# This is because by default, upstream zlib ./configure builds both.
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, static ? true
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, shared ? true
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}:
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stdenv.mkDerivation (rec {
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name = "zlib-${version}";
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version = "1.2.11";
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src = fetchurl {
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urls =
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[ "https://www.zlib.net/fossils/${name}.tar.gz" # stable archive path
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"mirror://sourceforge/libpng/zlib/${version}/${name}.tar.gz"
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];
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sha256 = "c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1";
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};
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patches = stdenv.lib.optional stdenv.hostPlatform.isCygwin ./disable-cygwin-widechar.patch;
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postPatch = stdenv.lib.optionalString stdenv.hostPlatform.isDarwin ''
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substituteInPlace configure \
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--replace '/usr/bin/libtool' 'ar' \
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--replace 'AR="libtool"' 'AR="ar"' \
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--replace 'ARFLAGS="-o"' 'ARFLAGS="-r"'
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'';
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outputs = [ "out" "dev" ]
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++ stdenv.lib.optional (shared && static) "static";
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setOutputFlags = false;
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outputDoc = "dev"; # single tiny man3 page
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configureFlags = stdenv.lib.optional shared "--shared"
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++ stdenv.lib.optional (static && !shared) "--static";
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postInstall = stdenv.lib.optionalString (shared && static) ''
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moveToOutput lib/libz.a "$static"
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''
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# jww (2015-01-06): Sometimes this library install as a .so, even on
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# Darwin; others time it installs as a .dylib. I haven't yet figured out
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# what causes this difference.
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+ stdenv.lib.optionalString stdenv.hostPlatform.isDarwin ''
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for file in $out/lib/*.so* $out/lib/*.dylib* ; do
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${stdenv.cc.bintools.targetPrefix}install_name_tool -id "$file" $file
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done
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''
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# Non-typical naming confuses libtool which then refuses to use zlib's DLL
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# in some cases, e.g. when compiling libpng.
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+ stdenv.lib.optionalString (stdenv.hostPlatform.libc == "msvcrt") ''
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ln -s zlib1.dll $out/bin/libz.dll
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'';
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# As zlib takes part in the stdenv building, we don't want references
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# to the bootstrap-tools libgcc (as uses to happen on arm/mips)
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NIX_CFLAGS_COMPILE = stdenv.lib.optionalString (!stdenv.hostPlatform.isDarwin) "-static-libgcc";
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dontStrip = stdenv.hostPlatform != stdenv.buildPlatform && static;
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configurePlatforms = [];
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installFlags = stdenv.lib.optionals (stdenv.hostPlatform.libc == "msvcrt") [
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"BINARY_PATH=$(out)/bin"
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"INCLUDE_PATH=$(dev)/include"
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"LIBRARY_PATH=$(out)/lib"
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];
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makeFlags = [
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"PREFIX=${stdenv.cc.targetPrefix}"
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] ++ stdenv.lib.optionals (stdenv.hostPlatform.libc == "msvcrt") [
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"-f" "win32/Makefile.gcc"
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] ++ stdenv.lib.optionals shared [
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# Note that as of writing (zlib 1.2.11), this flag only has an effect
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# for Windows as it is specific to `win32/Makefile.gcc`.
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"SHARED_MODE=1"
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];
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passthru = {
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inherit version;
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};
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meta = with stdenv.lib; {
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homepage = https://zlib.net;
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description = "Lossless data-compression library";
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license = licenses.zlib;
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platforms = platforms.all;
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};
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} // stdenv.lib.optionalAttrs (stdenv.hostPlatform != stdenv.buildPlatform) {
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preConfigure = ''
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export CHOST=${stdenv.hostPlatform.config}
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'';
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} // stdenv.lib.optionalAttrs (stdenv.hostPlatform.libc == "msvcrt") {
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dontConfigure = true;
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})
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