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nixpkgs/pkgs/tools/misc/man-db/default.nix

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{ lib, stdenv, fetchurl, pkg-config, libpipeline, db, groff, libiconv, makeWrapper, buildPackages }:
stdenv.mkDerivation rec {
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name = "man-db-2.9.4";
src = fetchurl {
url = "mirror://savannah/man-db/${name}.tar.xz";
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sha256 = "sha256-tmyZ7frRatkoyIn4fPdjgCY8FgkyPCgLOp5pY/2xZ1Y=";
};
outputs = [ "out" "doc" ];
outputMan = "out"; # users will want `man man` to work
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nativeBuildInputs = [ pkg-config makeWrapper groff ];
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buildInputs = [ libpipeline db groff ]; # (Yes, 'groff' is both native and build input)
checkInputs = [ libiconv /* for 'iconv' binary */ ];
patches = [ ./systemwide-man-db-conf.patch ];
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postPatch = ''
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# Remove all mandatory manpaths. Nixpkgs makes no requirements on
# these directories existing.
sed -i 's/^MANDATORY_MANPATH/# &/' src/man_db.conf.in
# Add Nix-related manpaths
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echo "MANPATH_MAP /nix/var/nix/profiles/default/bin /nix/var/nix/profiles/default/share/man" >> src/man_db.conf.in
# Add mandb locations for the above
echo "MANDB_MAP /nix/var/nix/profiles/default/share/man /var/cache/man/nixpkgs" >> src/man_db.conf.in
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'';
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configureFlags = [
"--disable-setuid"
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"--disable-cache-owner"
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"--localstatedir=/var"
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"--with-config-file=${placeholder "out"}/etc/man_db.conf"
"--with-systemdtmpfilesdir=${placeholder "out"}/lib/tmpfiles.d"
"--with-systemdsystemunitdir=${placeholder "out"}/lib/systemd/system"
"--with-pager=less"
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] ++ lib.optional stdenv.hostPlatform.isDarwin [
"ac_cv_func__set_invalid_parameter_handler=no"
"ac_cv_func_posix_fadvise=no"
"ac_cv_func_mempcpy=no"
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];
preConfigure = ''
configureFlagsArray+=("--with-sections=1 n l 8 3 0 2 5 4 9 6 7")
'';
postInstall = ''
# apropos/whatis uses program name to decide whether to act like apropos or whatis
# (multi-call binary). `apropos` is actually just a symlink to whatis. So we need to
# make sure that we don't wrap symlinks (since that changes argv[0] to the -wrapped name)
find "$out/bin" -type f | while read file; do
wrapProgram "$file" --prefix PATH : "${groff}/bin"
done
'';
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postFixup = lib.optionalString (buildPackages.groff != groff) ''
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# Check to make sure none of the outputs depend on build-time-only groff:
for outName in $outputs; do
out=''${!outName}
echo "Checking $outName(=$out) for references to build-time groff..."
if grep -r '${buildPackages.groff}' $out; then
echo "Found an erroneous dependency on groff ^^^" >&2
exit 1
fi
done
'';
enableParallelBuilding = true;
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doCheck = !stdenv.hostPlatform.isMusl /* iconv binary */ && !stdenv.hostPlatform.isDarwin;
meta = with lib; {
homepage = "http://man-db.nongnu.org";
description = "An implementation of the standard Unix documentation system accessed using the man command";
license = licenses.gpl2;
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platforms = lib.platforms.unix;
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mainProgram = "man";
};
}