nixpkgs/pkgs/development/libraries/libidn2/no-bootstrap-reference.nix
Vladimír Čunát 088b29159d
libidn2: hack to avoid referencing bootstrap tools
Due to bootstrap tools getting purged from closure of libidn2.dev,
a very large rebuild is caused.
2022-06-05 08:59:20 +02:00

31 lines
1.1 KiB
Nix

{ stdenv, lib, libidn2, libunistring, runCommandLocal, patchelf }:
# Construct a copy of libidn2.* where all (transitive) libc references (in .bin)
# get replaced by a new one, so that there's no reference to bootstrap tools.
runCommandLocal
"${libidn2.pname}-${libidn2.version}"
{
outputs = [ "bin" "dev" "out" ];
passthru = {
inherit (libidn2) out info devdoc; # no need to touch these store paths
};
}
''
cp -r '${libidn2.bin}' "$bin"
chmod +w "$bin"/bin/*
patchelf \
--set-interpreter '${stdenv.cc.bintools.dynamicLinker}' \
--set-rpath '${lib.concatMapStringsSep ":" (p: lib.getLib p + "/lib")
[ stdenv.cc.libc libunistring libidn2 ]}' \
"$bin"/bin/*
cp -r '${libidn2.dev}' "$dev"
chmod +w "$dev"/nix-support/propagated-build-inputs
substituteInPlace "$dev"/nix-support/propagated-build-inputs \
--replace '${libidn2.bin}' "$bin"
substituteInPlace "$dev"/lib/pkgconfig/libidn2.pc \
--replace '${libidn2.dev}' "$dev"
ln -s '${libidn2.out}' "$out" # it's hard to be without any $out
''