mirror of
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ba42683e9a
Avoid this warning (which is in turn an error via -Werror):
````
avc_internal.c: In function 'avc_netlink_receive':
avc_internal.c:105:25: error: cast increases required alignment of target type [-Werror=cast-align]
struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
^
````
The code allocates abuffer with "__attribute__ ((aligned))",
then passes it via a 'char*' parameter, which is then finally cast,
causing the warning. So the code is ok but compiler is not smart
enough to see it.
It seems that -Wcast-align is a no-op on x86, so this shows up on ARM
only.
57 lines
1.7 KiB
Nix
57 lines
1.7 KiB
Nix
{ stdenv, fetchurl, fetchpatch, pkgconfig, libsepol, pcre
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, enablePython ? true, swig ? null, python ? null
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}:
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assert enablePython -> swig != null && python != null;
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with stdenv.lib;
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stdenv.mkDerivation rec {
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name = "libselinux-${version}";
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version = "2.4";
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inherit (libsepol) se_release se_url;
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src = fetchurl {
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url = "${se_url}/${se_release}/libselinux-${version}.tar.gz";
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sha256 = "0yqg73ns97jwjh1iyv0jr5qxb8k5sqq5ywfkx11lzfn5yj8k0126";
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};
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buildInputs = [ pkgconfig libsepol pcre ]
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++ optionals enablePython [ swig python ];
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# Avoid this false warning:
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# avc_internal.c: In function 'avc_netlink_receive':
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# avc_internal.c:105:25: error: cast increases required alignment of target type [-Werror=cast-align]
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# struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
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# ^
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NIX_CFLAGS_COMPILE = "-std=gnu89 -Wno-error=cast-align";
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# Unreleased upstream patch that fixes Python package issue arising
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# from recent SWIG changes.
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patches = optional enablePython (fetchpatch {
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name = "fix-python-swig.patch";
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url = "https://github.com/SELinuxProject/selinux/commit/a9604c30a5e2f71007d31aa6ba41cf7b95d94822.patch";
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sha256 = "0mjrclh0sd8m7vq0wvl6pg29ss415j3kn0266v8ixy4fprafagfp";
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stripLen = 1;
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});
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postPatch = optionalString enablePython ''
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sed -i -e 's|\$(LIBDIR)/libsepol.a|${libsepol}/lib/libsepol.a|' src/Makefile
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'';
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preBuild = ''
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# Build fails without this precreated
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mkdir -p $out/include
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makeFlagsArray+=("PREFIX=$out")
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makeFlagsArray+=("DESTDIR=$out")
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'';
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installTargets = [ "install" ] ++ optional enablePython "install-pywrap";
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meta = libsepol.meta // {
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description = "SELinux core library";
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};
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}
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