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{ stdenv, fetchurl, attr, perl, pam ? null }:
assert pam != null -> stdenv.isLinux;
stdenv.mkDerivation rec {
name = "libcap-${version}";
version = "2.25";
src = fetchurl {
url = "mirror://kernel/linux/libs/security/linux-privs/libcap2/${name}.tar.xz";
sha256 = "0qjiqc5pknaal57453nxcbz3mn1r4hkyywam41wfcglq3v2qlg39";
};
outputs = [ "out" "dev" "lib" "doc" ]
++ stdenv.lib.optional (pam != null) "pam";
nativeBuildInputs = [ perl ];
buildInputs = [ pam ];
propagatedBuildInputs = [ attr ];
makeFlags = [
"lib=lib"
(stdenv.lib.optional (pam != null) "PAM_CAP=yes")
];
prePatch = ''
# use relative bash path
substituteInPlace progs/capsh.c --replace "/bin/bash" "bash"
# ensure capsh can find bash in $PATH
substituteInPlace progs/capsh.c --replace execve execvpe
'';
preInstall = ''
substituteInPlace Make.Rules \
--replace 'prefix=/usr' "prefix=$lib" \
--replace 'exec_prefix=' "exec_prefix=$out" \
--replace 'lib_prefix=$(exec_prefix)' "lib_prefix=$lib" \
--replace 'inc_prefix=$(prefix)' "inc_prefix=$dev" \
--replace 'man_prefix=$(prefix)' "man_prefix=$doc"
'';
installFlags = "RAISE_SETFCAP=no";
postInstall = ''
rm "$lib"/lib/*.a
mkdir -p "$doc/share/doc/${name}"
cp License "$doc/share/doc/${name}/"
'' + stdenv.lib.optionalString (pam != null) ''
mkdir -p "$pam/lib/security"
mv "$lib"/lib/security "$pam/lib"
'';
meta = {
description = "Library for working with POSIX capabilities";
platforms = stdenv.lib.platforms.linux;
};
}
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