tjh.dev
Clone of https://github.com/NixOS/nixpkgs.git (to stress-test knotserver)
1{
2 lib,
3 stdenv,
4 fetchurl,
5 cmake,
6 llvmPackages,
7 python3,
8}:
9
10stdenv.mkDerivation rec {
11 pname = "include-what-you-use";
12 # Make sure to bump `llvmPackages` in "pkgs/top-level/all-packages.nix" to the supported version:
13 # https://github.com/include-what-you-use/include-what-you-use?tab=readme-ov-file#clang-compatibility
14 version = "0.24";
15
16 src = fetchurl {
17 url = "${meta.homepage}/downloads/${pname}-${version}.src.tar.gz";
18 hash = "sha256-ojQhzv9gHT6iFej6kpK/qMo56xrCCY277fxs/mVUHBA=";
19 };
20
21 postPatch = ''
22 patchShebangs .
23 '';
24
25 nativeBuildInputs = with llvmPackages; [
26 cmake
27 llvm.dev
28 llvm
29 python3
30 ];
31 buildInputs = with llvmPackages; [
32 libclang
33 clang-unwrapped
34 python3
35 ];
36
37 clang = llvmPackages.clang;
38
39 cmakeFlags = [ "-DCMAKE_PREFIX_PATH=${llvmPackages.llvm.dev}" ];
40
41 postInstall = ''
42 substituteInPlace $out/bin/iwyu_tool.py \
43 --replace-fail "'include-what-you-use'" "'$out/bin/include-what-you-use'"
44
45
46 mv $out/bin/include-what-you-use $out/bin/.include-what-you-use-unwrapped
47 mv $out/bin/iwyu_tool.py $out/bin/.iwyu_tool.py-unwrapped
48 substituteAll ${./wrapper} $out/bin/include-what-you-use
49 ln -s $out/bin/include-what-you-use $out/bin/iwyu_tool.py
50 chmod +x $out/bin/include-what-you-use
51 patchShebangs $out/bin/include-what-you-use
52 '';
53
54 meta = with lib; {
55 description = "Analyze #includes in C/C++ source files with clang";
56 longDescription = ''
57 For every symbol (type, function variable, or macro) that you use in
58 foo.cc, either foo.cc or foo.h should #include a .h file that exports the
59 declaration of that symbol. The main goal of include-what-you-use is to
60 remove superfluous #includes, both by figuring out what #includes are not
61 actually needed for this file (for both .cc and .h files), and by
62 replacing #includes with forward-declares when possible.
63 '';
64 homepage = "https://include-what-you-use.org";
65 license = licenses.bsd3;
66 platforms = platforms.unix;
67 };
68}