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{ stdenv, fetchurl, static ? false }:
stdenv.mkDerivation rec {
name = "zlib-1.2.6";
src = fetchurl {
urls =
[ "http://www.zlib.net/${name}.tar.gz"
"http://gentoo.netnitco.net/distfiles/${name}.tar.gz"
];
sha256 = "06x6m33ls1606ni7275q5z392csvh18dgs55kshfnvrfal45w8r1";
};
patches = [ ];
configureFlags = if static then "" else "--shared";
preConfigure = ''
if test -n "$crossConfig"; then
export CC=$crossConfig-gcc
configureFlags=${if static then "" else "--shared"}
fi
'';
# As zlib takes part in the stdenv building, we don't want references
# to the bootstrap-tools libgcc (as uses to happen on arm/mips)
NIX_CFLAGS_COMPILE = "-static-libgcc";
crossAttrs = {
dontStrip = if static then true else false;
} // (if stdenv.cross.libc == "msvcrt" then {
configurePhase=''
installFlags="BINARY_PATH=$out/bin INCLUDE_PATH=$out/include LIBRARY_PATH=$out/lib"
'';
makeFlags = [
"-f" "win32/Makefile.gcc"
"PREFIX=${stdenv.cross.config}-"
] ++ (if static then [] else [ "SHARED_MODE=1" ]);
} else {});
# zlib doesn't like the automatic --disable-shared from the Cygwin stdenv.
cygwinConfigureEnableShared = true;
}
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