Use POCL_CACHE_DIR instead of writableHome...Hook

See: https://lkml.org/lkml/2025/4/9/1709

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1767634882,
-        "narHash": "sha256-2GffSfQxe3sedHzK+sTKlYo/NTIAGzbFCIsNMUPAAnk=",
+        "lastModified": 1764522689,
+        "narHash": "sha256-SqUuBFjhl/kpDiVaKLQBoD8TLD+/cTUzzgVFoaHrkqY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3c9db02515ef1d9b6b709fc60ba9a540957f661c",
+        "rev": "8bb5646e0bed5dbd3ab08c7a7cc15b75ab4e1d0f",
         "type": "github"
       },
       "original": {

m/apex/configuration.nix

@@ -57,18 +57,6 @@
     };
   };
 
-  services.fail2ban = {
-    enable = true;
-    maxretry = 5;
-    bantime-increment = {
-      enable = true; # Double ban time on each attack
-      maxtime = "7d"; # Ban up to a week
-    };
-  };
-
-  # Disable SSH login with password, allow only keypair
-  services.openssh.settings.PasswordAuthentication = false;
-
   networking.firewall = {
     extraCommands = ''
       # Blackhole BSC vulnerability scanner (OpenVAS) as it is spamming our

m/bay/configuration.nix

@@ -24,7 +24,7 @@
       address = "10.0.40.40";
       prefixLength = 24;
     } ];
-    interfaces.ibs785.ipv4.addresses = [ {
+    interfaces.ibp5s0.ipv4.addresses = [ {
       address = "10.0.42.40";
       prefixLength = 24;
     } ];

m/common/base/users.nix

@@ -139,7 +139,6 @@
         openssh.authorizedKeys.keys = [
           "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKGt0ESYxekBiHJQowmKpfdouw0hVm3N7tUMtAaeLejK vincent@varch"
         ];
-        shell = pkgs.zsh;
       };
 
       pmartin1 = {

m/eudy/kernel/perf.nix

@@ -1,6 +1,11 @@
-{ pkgs, lib, ... }:
+{ config, pkgs, lib, ... }:
 
 {
+  # add the perf tool
+  environment.systemPackages = with pkgs; [
+    config.boot.kernelPackages.perf
+  ];
+
   # allow non-root users to read tracing data from the kernel
   boot.kernel.sysctl."kernel.perf_event_paranoid" = -2;
   boot.kernel.sysctl."kernel.kptr_restrict" = 0;

m/hut/configuration.nix

@@ -45,7 +45,7 @@
       address = "10.0.40.7";
       prefixLength = 24;
     } ];
-    interfaces.ibs785.ipv4.addresses = [ {
+    interfaces.ibp5s0.ipv4.addresses = [ {
       address = "10.0.42.7";
       prefixLength = 24;
     } ];

m/lake2/configuration.nix

@@ -46,7 +46,7 @@
       address = "10.0.40.42";
       prefixLength = 24;
     } ];
-    interfaces.ibs785.ipv4.addresses = [ {
+    interfaces.ibp5s0.ipv4.addresses = [ {
       address = "10.0.42.42";
       prefixLength = 24;
     } ];

m/owl1/configuration.nix

@@ -20,7 +20,7 @@
       address = "10.0.40.1";
       prefixLength = 24;
     } ];
-    interfaces.ibs785.ipv4.addresses = [ {
+    interfaces.ibp5s0.ipv4.addresses = [ {
       address = "10.0.42.1";
       prefixLength = 24;
     } ];

m/owl2/configuration.nix

@@ -21,7 +21,7 @@
       prefixLength = 24;
     } ];
     # Watch out! The OmniPath device is not in the same place here:
-    interfaces.ibs801.ipv4.addresses = [ {
+    interfaces.ibp129s0.ipv4.addresses = [ {
       address = "10.0.42.2";
       prefixLength = 24;
     } ];

m/tent/gitea.nix

@@ -27,7 +27,4 @@
       };
     };
   };
-
-  # Allow gitea user to send mail
-  users.users.gitea.extraGroups = [ "mail-robot" ];
 }

overlay.nix

@@ -12,9 +12,9 @@ let
     bench6 = callPackage ./pkgs/bench6/default.nix { };
     bigotes = callPackage ./pkgs/bigotes/default.nix { };
     clangOmpss2 = callPackage ./pkgs/llvm-ompss2/default.nix { };
-    clangOmpss2Nanos6 = callPackage ./pkgs/llvm-ompss2/default.nix { useNanos6 = true; };
-    clangOmpss2Nodes = callPackage ./pkgs/llvm-ompss2/default.nix { useNodes = true; useOpenmp = true; };
-    clangOmpss2NodesOmpv = callPackage ./pkgs/llvm-ompss2/default.nix { useNodes = true; useOpenmpV = true; };
+    clangOmpss2Nanos6 = callPackage ./pkgs/llvm-ompss2/default.nix { ompss2rt = final.nanos6; };
+    clangOmpss2Nodes = callPackage ./pkgs/llvm-ompss2/default.nix { ompss2rt = final.nodes; openmp = final.openmp; };
+    clangOmpss2NodesOmpv = callPackage ./pkgs/llvm-ompss2/default.nix { ompss2rt = final.nodes; openmp = final.openmpv; };
     clangOmpss2Unwrapped = callPackage ./pkgs/llvm-ompss2/clang.nix { };
     cudainfo = prev.callPackage ./pkgs/cudainfo/default.nix { };
     #extrae = callPackage ./pkgs/extrae/default.nix { }; # Broken and outdated
@@ -49,17 +49,18 @@ let
     osumb = callPackage ./pkgs/osu/default.nix { };
     ovni = callPackage ./pkgs/ovni/default.nix { };
     ovniGit = final.ovni.override { useGit = true; };
-    papi = callPackage ./pkgs/papi/default.nix { papi = prev.papi; };
     paraverKernel = callPackage ./pkgs/paraver/kernel.nix { };
+    pocl = callPackage ./pkgs/pocl/default.nix { };
+    pocl-noicd = callPackage ./pkgs/pocl/default.nix { enableICD = false; };
     prometheus-slurm-exporter = prev.callPackage ./pkgs/slurm-exporter/default.nix { };
     #pscom = callPackage ./pkgs/parastation/pscom.nix { }; # Unmaintaned
     #psmpi = callPackage ./pkgs/parastation/psmpi.nix { }; # Unmaintaned
     slurm = import ./pkgs/slurm/default.nix { slurm = prev.slurm; };
     sonar = callPackage ./pkgs/sonar/default.nix { };
-    stdenvClangOmpss2 = final.stdenv.override { cc = final.buildPackages.clangOmpss2; allowedRequisites = null; };
-    stdenvClangOmpss2Nanos6 = final.stdenv.override { cc = final.buildPackages.clangOmpss2Nanos6; allowedRequisites = null; };
-    stdenvClangOmpss2Nodes = final.stdenv.override { cc = final.buildPackages.clangOmpss2Nodes; allowedRequisites = null; };
-    stdenvClangOmpss2NodesOmpv = final.stdenv.override { cc = final.buildPackages.clangOmpss2NodesOmpv; allowedRequisites = null; };
+    stdenvClangOmpss2 = final.stdenv.override { cc = final.clangOmpss2; allowedRequisites = null; };
+    stdenvClangOmpss2Nanos6 = final.stdenv.override { cc = final.clangOmpss2Nanos6; allowedRequisites = null; };
+    stdenvClangOmpss2Nodes = final.stdenv.override { cc = final.clangOmpss2Nodes; allowedRequisites = null; };
+    stdenvClangOmpss2NodesOmpv = final.stdenv.override { cc = final.clangOmpss2NodesOmpv; allowedRequisites = null; };
     tagaspi = callPackage ./pkgs/tagaspi/default.nix { };
     tampi = callPackage ./pkgs/tampi/default.nix { };
     upc-qaire-exporter = prev.callPackage ./pkgs/upc-qaire-exporter/default.nix { };
@@ -97,6 +98,13 @@ let
     clangNosvOmpv-ld = callPackage ./test/compilers/clang-openmp-ld.nix {
       stdenv = final.stdenvClangOmpss2NodesOmpv;
     };
+
+    ocl-build = callPackage ./test/compilers/opencl.nix { };
+    ocl-build-noicd = callPackage ./test/compilers/opencl.nix { ocl-icd = final.pocl-noicd; };
+
+    pocl = callPackage ./test/compilers/pocl.nix { };
+    ocl-run-pocl = ocl-build.test-icd;
+    ocl-run-pocl-noicd = ocl-build-noicd.test-noicd;
   };
 
   # For now, only build toplevel packages in CI/Hydra

pkgs/amd-uprof/default.nix

@@ -47,7 +47,6 @@ in
     inherit version;
     src = uprofSrc;
     dontStrip = true;
-    strictDeps = true;
     phases = [ "installPhase" "fixupPhase" ];
     nativeBuildInputs = [ autoPatchelfHook radare2 ];
     buildInputs = [

pkgs/amd-uprof/driver.nix

@@ -18,7 +18,6 @@ in stdenv.mkDerivation {
     set +x
   '';
   hardeningDisable = [ "pic" "format" ];
-  strictDeps = true;
   nativeBuildInputs = kernel.moduleBuildDependencies;
   patches = [ ./makefile.patch ./hrtimer.patch ./remove-wr-rdmsrq.patch ];
   makeFlags = [

pkgs/bench6/default.nix

@@ -59,7 +59,6 @@ stdenv.mkDerivation rec {
   ];
   hardeningDisable = [ "all" ];
   dontStrip = true;
-  strictDeps = true;
 
   meta = {
     homepage = "https://gitlab.pm.bsc.es/rarias/bench6";

pkgs/bigotes/default.nix

@@ -16,8 +16,6 @@ stdenv.mkDerivation {
   };
   nativeBuildInputs = [ cmake ];
 
-  strictDeps = true;
-
   meta = {
     homepage = "https://github.com/rodarima/bigotes";
     description = "Versatile benchmark tool";

pkgs/cudainfo/default.nix

@@ -10,13 +10,10 @@
 stdenv.mkDerivation (finalAttrs: {
   name = "cudainfo";
   src = ./.;
-  strictDeps = true;
-  nativeBuildInputs = [
-    cudatoolkit # Required for nvcc
-    autoAddDriverRunpath
-  ];
   buildInputs = [
+    cudatoolkit # Required for nvcc
     (lib.getOutput "static" cudaPackages.cuda_cudart) # Required for -lcudart_static
+    autoAddDriverRunpath
   ];
   installPhase = ''
     mkdir -p $out/bin
@@ -26,7 +23,6 @@ stdenv.mkDerivation (finalAttrs: {
     name = "cudainfo-test";
     requiredSystemFeatures = [ "cuda" ];
     dontBuild = true;
-    strictDeps = true;
     nativeCheckInputs = [
       finalAttrs.finalPackage # The cudainfo package from above
       strace # When it fails, it will show the trace

pkgs/extrae/default.nix

@@ -20,7 +20,7 @@
 #, python3Packages
 , installShellFiles
 , symlinkJoin
-, enablePapi ? true
+, enablePapi ? stdenv.hostPlatform == stdenv.buildPlatform # Disabled when cross-compiling
 }:
 
 let

pkgs/gpi-2/default.nix

@@ -33,7 +33,6 @@ stdenv.mkDerivation rec {
   };
 
   enableParallelBuilding = true;
-  strictDeps = true;
 
   patches = [ ./rdma-core.patch ./max-mem.patch ];
 

pkgs/intel-oneapi/2023.nix

@@ -128,7 +128,6 @@ let
 
     phases = [ "installPhase" "fixupPhase" ];
     dontStrip = true;
-    strictDeps = true;
     installPhase = ''
       mkdir -p $out/{bin,etc,lib,include}
       mkdir -p $out/share/man
@@ -180,7 +179,6 @@ let
     ];
     phases = [ "installPhase" "fixupPhase" ];
     dontStrip = true;
-    strictDeps = true;
 
     autoPatchelfIgnoreMissingDeps = [ "libhwloc.so.5" ];
 
@@ -224,7 +222,6 @@ let
     ];
     phases = [ "installPhase" "fixupPhase" ];
     dontStrip = true;
-    strictDeps = true;
 
     autoPatchelfIgnoreMissingDeps = [ "libsycl.so.6" ];
 
@@ -292,7 +289,6 @@ let
     phases = [ "installPhase" "fixupPhase" ];
 
     dontStrip = true;
-    strictDeps = true;
 
     installPhase = ''
       mkdir -p $out/{bin,lib,include}
@@ -381,7 +377,6 @@ let
     phases = [ "installPhase" "fixupPhase" ];
 
     dontStrip = true;
-    strictDeps = true;
 
     installPhase = ''
       mkdir -p $out/{bin,lib}

pkgs/llvm-ompss2/clang.nix

@@ -1,9 +1,9 @@
 {
-  stdenv
-, llvmPackages_latest
+  llvmPackages_latest
 , lib
 , fetchFromGitHub
 , cmake
+, bash
 , python3
 , perl
 , which
@@ -11,6 +11,7 @@
 , libffi
 , zlib
 , pkg-config
+, gcc # needed to set the rpath of libstdc++ for clang-tblgen
 , enableDebug ? false
 , useGit ? false
 , gitUrl ? "ssh://git@bscpm04.bsc.es/llvm-ompss/llvm-mono.git"
@@ -19,10 +20,7 @@
 }:
 
 let
-  llvmPackages = llvmPackages_latest;
-  llvmStdenv = llvmPackages.stdenv;
-  # needed to set the rpath of libstdc++ for clang-tblgen
-  gcc = stdenv.cc;
+  stdenv = llvmPackages_latest.stdenv;
 
   release = rec {
     version = "2025.11";
@@ -45,12 +43,11 @@ let
 
   source = if (useGit) then git else release;
 
-in llvmStdenv.mkDerivation {
+in stdenv.mkDerivation {
   pname = "clang-ompss2";
   inherit (source) src version;
 
   enableParallelBuilding = true;
-  strictDeps = true;
 
   passthru = {
     CC = "clang";
@@ -63,12 +60,13 @@ in llvmStdenv.mkDerivation {
   };
 
   nativeBuildInputs = [
+    bash
     cmake
     elfutils
-    llvmPackages.lld
-    perl
+    llvmPackages_latest.lld
     pkg-config
     python3
+    perl
     which
     zlib
   ];
@@ -99,13 +97,8 @@ in llvmStdenv.mkDerivation {
     cd build
     cmakeDir="../llvm"
     cmakeFlagsArray=(
-      "-DLLVM_HOST_TRIPLE=${llvmStdenv.targetPlatform.config}"
-    '' + (if "${llvmStdenv.targetPlatform.config}" == "riscv64-unknown-linux-gnu" then ''
-      "-DLLVM_DEFAULT_TARGET_TRIPLE=riscv64-unknown-linux-gnu"
-      "-DLLVM_TARGETS_TO_BUILD=RISCV"
-    '' else ''
+      "-DLLVM_HOST_TRIPLE=${stdenv.targetPlatform.config}"
       "-DLLVM_TARGETS_TO_BUILD=host"
-    '') + ''
       "-DLLVM_BUILD_LLVM_DYLIB=ON"
       "-DLLVM_LINK_LLVM_DYLIB=ON"
       # Required to run clang-ast-dump and clang-tblgen during build
@@ -114,8 +107,7 @@ in llvmStdenv.mkDerivation {
       "-DCMAKE_CXX_FLAGS_DEBUG=-g -ggnu-pubnames"
       "-DCMAKE_EXE_LINKER_FLAGS_DEBUG=-Wl,--gdb-index"
       "-DLLVM_LIT_ARGS=-sv --xunit-xml-output=xunit.xml"
-      "-DLLVM_ENABLE_PROJECTS=clang;lld"
-      "-DLLVM_ENABLE_RUNTIMES=compiler-rt"
+      "-DLLVM_ENABLE_PROJECTS=clang;compiler-rt;lld"
       "-DLLVM_ENABLE_ASSERTIONS=ON"
       "-DLLVM_INSTALL_TOOLCHAIN_ONLY=ON"
       "-DCMAKE_INSTALL_BINDIR=bin"

pkgs/llvm-ompss2/default.nix

@@ -3,42 +3,25 @@
 , lib
 , gcc
 , clangOmpss2Unwrapped
-
-, openmp
-, useOpenmp  ? false
-, openmpv
-, useOpenmpV ? false
-, nanos6
-, useNanos6 ? false
-, nodes
-, useNodes ? false
-
+, openmp ? null
 , wrapCCWith
 , llvmPackages_latest
+, ompss2rt ? null
 }:
 
 with lib;
 
 let
-  getSplice = target: pkg: if pkg ? "__spliced" && pkg.__spliced ? target then pkg.__spliced."${target}" else pkg;
-  getSpliceTargetTarget = getSplice "targetTarget";
-  omp = if useOpenmp then openmp else if useOpenmpV then openmpv else null;
-  ompss2rtUnspliced = if useNanos6 then nanos6 else if useNodes then nodes else null;
-  ompss2rt = getSpliceTargetTarget ompss2rtUnspliced;
-  usingNodesAndOmpv = omp != null && ompss2rt != null && (omp.pname == "openmp-v" && ompss2rt.pname == "nodes");
-  sameNosvUnspliced = omp != null && ompss2rtUnspliced != null && omp.nosv == ompss2rtUnspliced.nosv;
-  sameNosvSpliced = (getSpliceTargetTarget omp.nosv) == ompss2rt.nosv;
+  usingNodesAndOmpv = (openmp.pname == "openmp-v" && ompss2rt.pname == "nodes");
+  sameNosv = openmp.nosv == ompss2rt.nosv;
 in
 
-assert assertMsg (usingNodesAndOmpv -> sameNosvUnspliced) "OpenMP-V and NODES must share the same nOS-V before splice";
-assert assertMsg (usingNodesAndOmpv -> sameNosvSpliced) "OpenMP-V and NODES must share the same nOS-V after splice";
-assert assertMsg (useOpenmp -> !useOpenmpV) "Either OpenMP or OpenMP-V may be enabled, but not both";
-assert assertMsg (useNanos6 -> !useNodes) "Either Nanos6 or NODES may be enabled, but not both";
+assert assertMsg (usingNodesAndOmpv -> sameNosv) "OpenMP-V and NODES must share the same nOS-V";
 
 let
   homevar = if ompss2rt.pname == "nanos6" then "NANOS6_HOME" else "NODES_HOME";
   rtname  = if ompss2rt.pname == "nanos6" then "libnanos6" else "libnodes";
-  ompname = if omp.pname == "openmp-v" then  "libompv" else "libomp";
+  ompname = if openmp.pname == "openmp-v" then  "libompv" else "libomp";
 
 
   # We need to replace the lld linker from bintools with our linker just built,
@@ -54,10 +37,10 @@ let
   inherit gcc;
   cc = clangOmpss2Unwrapped;
   gccVersion = with versions; let v = gcc.version; in concatStringsSep "." [(major v) (minor v) (patch v)];
-in (wrapCCWith {
+in wrapCCWith {
   inherit cc bintools;
   # extraPackages adds packages to depsTargetTargetPropagated
-  extraPackages = optional (omp != null) omp;
+  extraPackages = optional (openmp != null) openmp;
   extraBuildCommands = ''
     echo "-target ${targetConfig}" >> $out/nix-support/cc-cflags
     echo "-B${gcc.cc}/lib/gcc/${targetConfig}/${gccVersion}" >> $out/nix-support/cc-cflags
@@ -73,15 +56,15 @@ in (wrapCCWith {
 
     echo "--gcc-toolchain=${gcc}" >> $out/nix-support/cc-cflags
 
-    wrap ${targetConfig}clang++  $wrapper $ccPath/clang++
-    wrap ${targetConfig}clang    $wrapper $ccPath/clang
+    wrap clang++  $wrapper $ccPath/clang++
 
-  '' + optionalString (omp != null) ''
+  '' + optionalString (openmp != null) ''
     echo "export OPENMP_RUNTIME=${ompname}" >> $out/nix-support/cc-wrapper-hook
   '' + optionalString (ompss2rt != null) ''
     echo "export OMPSS2_RUNTIME=${rtname}" >> $out/nix-support/cc-wrapper-hook
     echo "export ${homevar}=${ompss2rt}"   >> $out/nix-support/cc-wrapper-hook
   '' + optionalString (ompss2rt != null && ompss2rt.pname == "nodes") ''
-    echo "export NOSV_HOME=${ompss2rt}" >> $out/nix-support/cc-wrapper-hook
+    echo "export NOSV_HOME=${ompss2rt.nosv}" >> $out/nix-support/cc-wrapper-hook
   '';
-}).overrideAttrs (prev: { passthru = (prev.passthru or {}) // { inherit ompss2rt; }; })
+}
+

pkgs/llvm-ompss2/openmp.nix

@@ -39,9 +39,7 @@ stdenv.mkDerivation rec {
     perl
     pkg-config
     python3
-  ];
-
-  buildInputs = lib.optionals enableNosv [
+  ] ++ lib.optionals enableNosv [
     nosv
   ] ++ lib.optionals enableOvni [
     ovni
@@ -56,7 +54,6 @@ stdenv.mkDerivation rec {
   dontStrip = enableDebug;
 
   separateDebugInfo = true;
-  strictDeps = true;
 
   cmakeFlags = [
     "-DLIBOMP_OMPD_SUPPORT=OFF"
@@ -74,28 +71,6 @@ stdenv.mkDerivation rec {
     rm -f $out/libllvmrt/libomp.*
   '';
 
-  doInstallCheck = true;
-  # There are not cmake flags to force nOS-V, it enables it when found through
-  # pkg-config. If enableNosv is set, but we fail to find it at build time,
-  # the build will succeed but won't use nOS-V (libompv won't be created).
-  # This is a sanity check to ensure that after install we have the proper
-  # files.
-  installCheckPhase =
-    if enableNosv then
-      ''
-        test -f $out/lib/libompv.so
-        test -f $out/libllvmrt/libompv.so
-        test ! -f $out/lib/libomp.so
-        test ! -f $out/libllvmrt/libomp.so
-      ''
-    else
-      ''
-        test -f $out/lib/libomp.so
-        test -f $out/libllvmrt/libomp.so
-        test ! -f $out/lib/libompv.so
-        test ! -f $out/libllvmrt/libompv.so
-      '';
-
   passthru = {
     inherit nosv;
   };

pkgs/lmbench/default.nix

@@ -27,7 +27,6 @@ stdenv.mkDerivation rec {
   hardeningDisable = [ "all" ];
 
   enableParallelBuilding = false;
-  strictDeps = true;
 
   preBuild = ''
     makeFlagsArray+=(

pkgs/meteocat-exporter/default.nix

@@ -9,7 +9,6 @@ python3Packages.buildPythonApplication {
   src = ./.;
 
   doCheck = false;
-  strictDeps = true;
 
   build-system = with python3Packages; [
     setuptools

pkgs/mpich/default.nix

@@ -53,7 +53,6 @@ in mpich.overrideAttrs (old: {
   '';
 
   hardeningDisable = [ "all" ];
-  strictDeps = true;
 
   meta = old.meta // {
     maintainers = old.meta.maintainers ++ (with lib.maintainers.bsc; [ rarias ]);

pkgs/nanos6/default.nix

@@ -16,7 +16,7 @@
 , jemallocNanos6 ? null
 , cachelineBytes ? 64
 , enableGlibcxxDebug ? false
-, enablePapi ? true
+, enablePapi ? stdenv.hostPlatform == stdenv.buildPlatform # Disabled when cross-compiling
 , useGit ? false
 , gitUrl ? "ssh://git@bscpm04.bsc.es/nanos6/nanos6"
 , gitBranch ? "master"
@@ -80,8 +80,7 @@ in
       (optional enableGlibcxxDebug "CXXFLAGS=-D_GLIBCXX_DEBUG") ++
       # Most nanos6 api symbols are resolved at runtime, so prefer
       # ifunc by default
-      (optional isCross "--with-symbol-resolution=ifunc") ++
-      (optional enablePapi "--with-papi=${papi}");
+      (optional isCross "--with-symbol-resolution=ifunc");
 
     postConfigure = lib.optionalString (!enableDebug) ''
       # Disable debug
@@ -96,14 +95,16 @@ in
     dontStrip = enableDebug;
     separateDebugInfo = true;
 
-    strictDeps = true;
-
     nativeBuildInputs = [
       autoconf
       automake
       libtool
       pkg-config
-    ];
+
+      # TODO: papi_version is needed for configure:
+      # ./configure: line 27378: papi_version: command not found
+      # This probably breaks cross-compilation
+    ] ++ lib.optionals enablePapi [ papi ];
 
     buildInputs = [
       boost

pkgs/nixgen/default.nix

@@ -8,7 +8,6 @@ stdenv.mkDerivation {
   version = "0.0.1";
   src = ./nixgen;
   dontUnpack = true;
-  strictDeps = true;
   phases = [ "installPhase" ];
   installPhase = ''
     mkdir -p $out/bin

pkgs/nixtools/default.nix

@@ -16,7 +16,6 @@ stdenv.mkDerivation rec {
   makeFlags = [ "DESTDIR=$(out)" ];
   preBuild = "env";
   dontPatchShebangs = true;
-  strictDeps = true;
 
   meta = {
     homepage = "https://gitlab.pm.bsc.es/rarias/nixtools";

pkgs/nodes/default.nix

@@ -48,7 +48,6 @@ in
     enableParallelBuilding = true;
     dontStrip = true;
     separateDebugInfo = true;
-    strictDeps = true;
 
     configureFlags = [
       "--with-nosv=${nosv}"

pkgs/nosv/default.nix

@@ -7,7 +7,7 @@
 , numactl
 , hwloc
 , papi
-, enablePapi ? true
+, enablePapi ? stdenv.hostPlatform == stdenv.buildPlatform # Disabled when cross-compiling
 , cacheline ? 64 # bits
 , ovni ? null
 , useGit ? false
@@ -40,17 +40,16 @@ let
 
   source = if (useGit) then git else release;
 in
-  stdenv.mkDerivation {
+  stdenv.mkDerivation rec {
     pname = "nosv";
     inherit (source) src version;
     hardeningDisable = [ "all" ];
     dontStrip = true;
     separateDebugInfo = true;
-    strictDeps = true;
     configureFlags = [
       "--with-ovni=${ovni}"
       "CACHELINE_WIDTH=${toString cacheline}"
-    ] ++ lib.optionals enablePapi [ "--with-papi=${papi}" ];
+    ];
     nativeBuildInputs = [
       autoreconfHook
       pkg-config
@@ -60,7 +59,6 @@ in
       hwloc
       ovni
     ] ++ lib.optionals enablePapi [ papi ];
-    patches = [ ./fix-papi.patch ];
 
     meta = {
       homepage = "https://gitlab.bsc.es/nos-v/nos-v";

pkgs/nosv/fix-papi.patch

@@ -1,136 +0,0 @@
-Commit ID: c09633f172ce4075e0a05a33f6dcbe8e03e1202a
-Change ID: onmwypnnrysktutwsvotqovzponvwrxs
-Bookmarks: fix/papi fix/papi@git fix/papi@origin
-Author   : Aleix Boné <aleix.boneribo@bsc.es> (2025-12-10 11:14:14)
-Committer: Aleix Boné <aleix.boneribo@bsc.es> (2025-12-12 12:56:48)
-
-    Improve PAPI m4 module for cross compilation
-
-diff --git a/m4/papi.m4 b/m4/papi.m4
-index de90584870..8398f856f5 100644
---- a/m4/papi.m4
-+++ b/m4/papi.m4
-@@ -1,6 +1,6 @@
- #	This file is part of Nanos6 and is licensed under the terms contained in the COPYING file.
- #
--#	Copyright (C) 2021-2022 Barcelona Supercomputing Center (BSC)
-+#	Copyright (C) 2021-2025 Barcelona Supercomputing Center (BSC)
- 
- AC_DEFUN([AC_CHECK_PAPI],
- 	[
-@@ -8,34 +8,38 @@
- 			[papi],
- 			[AS_HELP_STRING([--with-papi=prefix], [specify the installation prefix of PAPI])],
- 			[ ac_cv_use_papi_prefix=$withval ],
--			[ ac_cv_use_papi_prefix="" ]
-+			[ ac_cv_use_papi_prefix="check" ]
- 		)
- 
- 		if test x"${ac_cv_use_papi_prefix}" = x"no"; then
- 			AC_MSG_CHECKING([the PAPI installation prefix])
- 			AC_MSG_RESULT([${ac_cv_use_papi_prefix}])
- 			ac_use_papi=no
--		elif test x"${ac_cv_use_papi_prefix}" != x"" ; then
--			AC_MSG_CHECKING([the PAPI installation prefix])
--			AC_MSG_RESULT([${ac_cv_use_papi_prefix}])
--			papi_LIBS="-L${ac_cv_use_papi_prefix}/lib -lpapi -Wl,-rpath,${ac_cv_use_papi_prefix}/lib"
--			papi_CFLAGS="-I$ac_cv_use_papi_prefix/include"
--			ac_use_papi=yes
--		else
-+		elif test x"${ac_cv_use_papi_prefix}" = x""; then
-+			AC_MSG_RESULT([invalid prefix])
-+			AC_MSG_ERROR([papi prefix specified but empty])
-+		elif test x"${ac_cv_use_papi_prefix}" = x"yes" -o x"${ac_cv_use_papi_prefix}" = x"check"; then
- 			PKG_CHECK_MODULES(
- 				[papi],
--				[papi],
-+				[papi >= 5.6.0],
- 				[
- 					AC_MSG_CHECKING([the PAPI installation prefix])
- 					AC_MSG_RESULT([retrieved from pkg-config])
- 					papi_CFLAGS="${papi_CFLAGS}"
- 					ac_use_papi=yes
-+					ac_papi_version_correct=yes
- 				], [
- 					AC_MSG_CHECKING([the PAPI installation prefix])
- 					AC_MSG_RESULT([not available])
- 					ac_use_papi=no
- 				]
- 			)
-+		else
-+			AC_MSG_CHECKING([the PAPI installation prefix])
-+			AC_MSG_RESULT([${ac_cv_use_papi_prefix}])
-+			papi_LIBS="-L${ac_cv_use_papi_prefix}/lib -lpapi -Wl,-rpath,${ac_cv_use_papi_prefix}/lib"
-+			papi_CFLAGS="-I$ac_cv_use_papi_prefix/include"
-+			ac_use_papi=yes
- 		fi
- 
- 		if test x"${ac_use_papi}" = x"yes" ; then
-@@ -53,10 +57,10 @@
- 					ac_use_papi=yes
- 				],
- 				[
--					if test x"${ac_cv_use_papi_prefix}" != x"" ; then
--						AC_MSG_ERROR([PAPI cannot be found.])
-+					if test x"${ac_cv_use_papi_prefix}" = x"yes" ; then
-+						AC_MSG_ERROR([PAPI >= 5.6.0 cannot be found.])
- 					else
--						AC_MSG_WARN([PAPI cannot be found.])
-+						AC_MSG_WARN([PAPI >= 5.6.0 not available.])
- 					fi
- 					ac_use_papi=no
- 				]
-@@ -64,30 +68,38 @@
- 
- 			CFLAGS="${ac_save_CFLAGS}"
- 			LIBS="${ac_save_LIBS}"
-+		elif test x"${ac_cv_use_papi_prefix}" = x"yes" ; then
-+			AC_MSG_ERROR([PAPI >= 5.6.0 cannot be found.])
- 		fi
- 
--		if test x"${ac_use_papi}" = x"yes" ; then
--			if test x"${ac_cv_use_papi_prefix}" != x"" ; then
-+		if test x"${ac_use_papi}" = x"yes" -a x"${ac_papi_version_correct}" != x"yes" ; then
-+			if test x"${ac_cv_use_papi_prefix}" != x"yes" -a x"${ac_cv_use_papi_prefix}" != x"check" ; then
- 				papiBinary=${ac_cv_use_papi_prefix}/bin/papi_version
- 			else
- 				papiBinary=papi_version
- 			fi
--			papiVersion=`$papiBinary | sed 's/[[^0-9.]]*\([[0-9.]]*\).*/\1/'`
- 
--			AX_COMPARE_VERSION(
--				[[${papiVersion}]],
--				[[ge]],
--				[[5.6.0]],
--				[[ac_papi_version_correct=yes]],
--				[[ac_papi_version_correct=no]]
--			)
- 
--			if test x"${ac_papi_version_correct}" != x"yes" ; then
--				AC_MSG_ERROR([PAPI version must be >= 5.6.0.])
--				ac_use_papi=no
-+			if test x"$cross_compiling" = x"yes" ; then
-+				AC_MSG_WARN([Cross-compiling detected, skipping PAPI version check])
- 			else
--				AC_MSG_CHECKING([if the PAPI version >= 5.6.0.])
--				AC_MSG_RESULT([${ac_papi_version_correct}])
-+				papiVersion=`$papiBinary | sed 's/[[^0-9.]]*\([[0-9.]]*\).*/\1/'`
-+
-+				AX_COMPARE_VERSION(
-+					[[${papiVersion}]],
-+					[[ge]],
-+					[[5.6.0]],
-+					[[ac_papi_version_correct=yes]],
-+					[[ac_papi_version_correct=no]]
-+				)
-+
-+				if test x"${ac_papi_version_correct}" != x"yes" ; then
-+					AC_MSG_ERROR([PAPI version must be >= 5.6.0.])
-+					ac_use_papi=no
-+				else
-+					AC_MSG_CHECKING([if the PAPI version >= 5.6.0.])
-+					AC_MSG_RESULT([${ac_papi_version_correct}])
-+				fi
- 			fi
- 		fi
- 

pkgs/osu/default.nix

@@ -24,7 +24,6 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
   enableParallelBuilding = true;
-  strictDeps = true;
   nativeBuildInputs = [ mpiAll ];
   buildInputs = [ mpiAll ];
   hardeningDisable = [ "all" ];

pkgs/ovni/default.nix

@@ -40,7 +40,6 @@ in
     inherit (source) src version;
     dontStrip = true;
     separateDebugInfo = true;
-    strictDeps = true;
     postPatch = ''
       patchShebangs --build test/
     '';

pkgs/papi/default.nix

@@ -1,22 +0,0 @@
-{
-  stdenv,
-  papi,
-}:
-
-if stdenv.hostPlatform == stdenv.buildPlatform then
-  papi
-else
-  papi.overrideAttrs (old: {
-    configureFlags = (old.configureFlags or [ ]) ++ [
-      "--enable-perf_event_uncore=no"
-      "--with-sysdetect=no"
-      "--with-ffsll"
-      "--with-tls=__thread"
-      "--with-virtualtimer=clock_thread_cputime_id"
-      "--with-walltimer=clock_realtime"
-      "--with-perf-events"
-      "--with-CPU=${stdenv.hostPlatform.uname.processor}"
-      "--with-arch=${stdenv.hostPlatform.uname.processor}"
-    ];
-    patches = (old.patches or [ ]) ++ [ ./fix-ar-cross.patch ];
-  })

pkgs/papi/fix-ar-cross.patch

@@ -1,19 +0,0 @@
-diff --git a/sde_lib/Makefile b/sde_lib/Makefile
-index 8518f92..90a9953 100644
---- a/sde_lib/Makefile
-+++ b/sde_lib/Makefile
-@@ -1,4 +1,5 @@
- CC ?= gcc
-+AR ?= ar
- SDE_INC = -I. -I..
- SDE_LD = -ldl -pthread
- CFLAGS += -Wextra -Wall -O2
-@@ -18,7 +19,7 @@ dynamic: $(DOBJS)
- 	rm -f *_d.o
- 
- static: $(SOBJS)
--	ar rs libsde.a $(SOBJS)
-+	$(AR) rs libsde.a $(SOBJS)
- 	rm -f *_s.o
- 
- clean:

pkgs/paraver/default.nix

@@ -47,7 +47,6 @@ stdenv.mkDerivation rec {
 
   dontStrip = true;
   enableParallelBuilding = true;
-  strictDeps = true;
 
   preConfigure = ''
     export CFLAGS="-O3"

pkgs/paraver/kernel.nix

@@ -34,7 +34,6 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   dontStrip = true;
-  strictDeps = true;
 
   preConfigure = ''
     export CFLAGS="-O3 -DPARALLEL_ENABLED"

pkgs/pocl/0001-cmake-do-not-use-suffix.patch

@@ -0,0 +1,26 @@
+From ccf301659caac9b5e973ba1f2d32352acf617a98 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Aleix=20Bon=C3=A9?= <aleix.boneribo@bsc.es>
+Date: Tue, 2 Jul 2024 16:45:05 +0200
+Subject: [PATCH] cmake: do not use suffix
+
+---
+ cmake/LLVM.cmake                              |  3 ++
+ 1 files changed, 3 insertions(+)
+
+diff --git a/cmake/LLVM.cmake b/cmake/LLVM.cmake
+index f4dbda065..e29144dce 100644
+--- a/cmake/LLVM.cmake
++++ b/cmake/LLVM.cmake
+@@ -65,6 +65,9 @@ else()
+     message(WARNING "Cannot determine llvm binary suffix from ${LLVM_CONFIG}")
+   endif()
+   message(STATUS "LLVM binaries suffix : ${LLVM_BINARY_SUFFIX}")
++
++  # We don't want suffixes in nix
++  set(LLVM_BINARY_SUFFIX "")
+ endif()
+ 
+ get_filename_component(LLVM_CONFIG_LOCATION "${LLVM_CONFIG}" DIRECTORY)
+-- 
+2.45.1
+

pkgs/pocl/0001-cmake-native-build-tools.patch

@@ -0,0 +1,33 @@
+From f24b456c50f587b05cc8f2699c94d8cdefc5b13e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Aleix=20Bon=C3=A9?= <aleix.boneribo@bsc.es>
+Date: Tue, 2 Jul 2024 17:11:11 +0200
+Subject: [PATCH] cmake: native build tools
+
+---
+ cmake/LLVM.cmake                    |   7 +-
+ 1 files changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/cmake/LLVM.cmake b/cmake/LLVM.cmake
+index e29144dce..b9f14ce6a 100644
+--- a/cmake/LLVM.cmake
++++ b/cmake/LLVM.cmake
+@@ -269,10 +269,15 @@ endforeach()
+ 
+ ####################################################################
+ 
++if(DEFINED LLVM_NATIVE_TOOL_DIR)
++  set(TOOL_DIR "${LLVM_NATIVE_TOOL_DIR}")
++  message(STATUS "TOOL_DIR=${TOOL_DIR}")
++endif()
++
+ macro(find_program_or_die OUTPUT_VAR PROG_NAME DOCSTRING)
+   find_program(${OUTPUT_VAR}
+     NAMES "${PROG_NAME}${LLVM_BINARY_SUFFIX}${CMAKE_EXECUTABLE_SUFFIX}"
+-    HINTS "${LLVM_BINDIR}" "${LLVM_CONFIG_LOCATION}"
++    HINTS "${TOOL_DIR}" "${LLVM_BINDIR}" "${LLVM_CONFIG_LOCATION}"
+     DOC "${DOCSTRING}"
+     NO_CMAKE_PATH
+     NO_CMAKE_ENVIRONMENT_PATH
+-- 
+2.45.1
+

pkgs/pocl/0001-cmake-use-clang-from-cmake-variable.patch

@@ -0,0 +1,48 @@
+From 4688b5ce895761c884ae15fc0234ed8d623b988b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Aleix=20Bon=C3=A9?= <aleix.boneribo@bsc.es>
+Date: Tue, 2 Jul 2024 15:41:47 +0200
+Subject: [PATCH] cmake: use clang from cmake variable
+
+---
+ cmake/LLVM.cmake | 22 ++++++++++++++++++++--
+ 1 file changed, 20 insertions(+), 2 deletions(-)
+
+diff --git a/cmake/LLVM.cmake b/cmake/LLVM.cmake
+index 71b786dc7..f4dbda065 100644
+--- a/cmake/LLVM.cmake
++++ b/cmake/LLVM.cmake
+@@ -281,11 +281,29 @@ macro(find_program_or_die OUTPUT_VAR PROG_NAME DOCSTRING)
+   endif()
+ endmacro()
+ 
+-find_program_or_die( CLANG "clang" "clang binary")
++# -DCMAKE_C_COMPILER=riscv64-unknown-linux-gnu-clang -DCMAKE_CXX_COMPILER=riscv64-unknown-linux-gnu-clang++
++
++# if(DEFINED CLANG_EXECUTABLE)
++if(DEFINED CMAKE_C_COMPILER)
++  # set(CLANG "${CLANG_EXECUTABLE}")
++  set(CLANG "${CMAKE_C_COMPILER}")
++  message(STATUS "Using CLANG_EXECUTABLE: ${CLANG}")
++else()
++  find_program_or_die( CLANG "clang" "clang binary")
++endif()
+ execute_process(COMMAND "${CLANG}" "--version" OUTPUT_VARIABLE LLVM_CLANG_VERSION RESULT_VARIABLE CLANG_RES)
++
+ # TODO this should be optional
+-find_program_or_die( CLANGXX "clang++" "clang++ binary")
++# if(DEFINED CLANGXX_EXECUTABLE)
++if(DEFINED CMAKE_CXX_COMPILER)
++  # set(CLANGXX "${CLANGXX_EXECUTABLE}")
++  set(CLANGXX "${CMAKE_CXX_COMPILER}")
++  message(STATUS "Using CLANGXX_EXECUTABLE: ${CLANGXX}")
++else()
++  find_program_or_die( CLANGXX "clang++" "clang++ binary")
++endif()
+ execute_process(COMMAND "${CLANGXX}" "--version" OUTPUT_VARIABLE LLVM_CLANGXX_VERSION RESULT_VARIABLE CLANGXX_RES)
++
+ if(CLANGXX_RES OR CLANG_RES)
+   message(FATAL_ERROR "Failed running clang/clang++ --version")
+ endif()
+-- 
+2.45.1
+

pkgs/pocl/default.nix

@@ -0,0 +1,227 @@
+{
+  lib,
+  llvmPackages,
+  ninja,
+  cmake,
+  hwloc,
+  ocl-icd,
+  opencl-headers,
+  getconf,
+  pkg-config,
+  spirv-llvm-translator,
+  spirv-tools,
+  libxml2, # required for statically linked llvm
+  python3,
+  writableTmpDirAsHomeHook,
+  writeText,
+
+  fetchFromGitHub,
+
+  useGit ? false,
+  gitUrl ? "git@gitlab-internal.bsc.es:task-awareness/pocl/pocl.git",
+  gitBranch ? "new-device",
+  gitCommit ? "dd10c2221b31223cbb796182df6a07f11c7541f5",
+
+  staticLLVM ? true,
+  enableICD ? true,
+  enableSPIRV ? true,
+  enableHWLOC ? true,
+  enableRemoteServer ? false,
+  enableRemoteClient ? false,
+  enableDistroVariants ? false,
+
+  lttng-ust,
+  enableLTTNG ? false,
+
+  onetbb,
+  enableTBB ? false,
+
+  nosv ? null,
+  ovni ? null,
+  enableNOSV ? useGit,
+  enableOVNI ? useGit,
+
+  buildPackages,
+  targetPackages,
+  nix-update-script,
+}:
+
+assert (enableNOSV || enableOVNI) -> useGit;
+
+let
+
+  release = rec {
+    version = "7.1";
+    src = fetchFromGitHub {
+      owner = "pocl";
+      repo = "pocl";
+      tag = "v${version}";
+      hash = "sha256-bS6vTIjLO7YLs7qYLKW0cYYbEJ/hRS/+IjjAKbkj8ac=";
+    };
+  };
+
+  git = rec {
+    version = src.shortRev;
+    src = builtins.fetchGit {
+      url = gitUrl;
+      ref = gitBranch;
+      rev = gitCommit;
+    };
+  };
+
+  source = if (useGit) then git else release;
+
+  stdenv = llvmPackages.stdenv;
+
+  buildLlvmPackages = buildPackages.llvmPackages;
+
+  isCross = stdenv.hostPlatform != stdenv.buildPlatform;
+
+  featureList = lib.concatStringsSep "+" (
+    (lib.optionals enableICD [ "icd" ])
+    ++ (lib.optionals enableNOSV [ "nosv" ])
+    ++ (lib.optionals enableOVNI [ "ovni" ])
+    ++ (lib.optionals enableSPIRV [ "spirv" ])
+    ++ (lib.optionals enableTBB [ "tbb" ])
+    ++ (lib.optionals enableRemoteClient [ "server" ])
+    ++ (lib.optionals enableRemoteServer [ "client" ])
+  );
+in
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "pocl";
+  version = featureList + "-" + source.version;
+  inherit (source) src;
+
+  patches = lib.optionals useGit [
+    ./0001-cmake-use-clang-from-cmake-variable.patch
+    ./0001-cmake-do-not-use-suffix.patch
+    ./0001-cmake-native-build-tools.patch
+  ];
+
+  cmakeFlags = [
+    # TODO: all these are broken when cross compiling. Upstream has refactored
+    # all the cmake infra for cross compilation, but it's not in a release yet
+    (lib.cmakeOptionType "filepath" "WITH_LLVM_CONFIG" (
+      lib.getExe' buildLlvmPackages.llvm.dev "llvm-config"
+    ))
+    (lib.cmakeOptionType "filepath" "CLANG" (lib.getExe' buildLlvmPackages.clangUseLLVM "clang"))
+    (lib.cmakeOptionType "filepath" "CLANGXX" (lib.getExe' buildLlvmPackages.clangUseLLVM "clang++"))
+    (lib.cmakeOptionType "path" "CLANG_RESOURCE_DIR" "${llvmPackages.stdenv.cc}/resource-root")
+
+    (lib.cmakeBool "ENABLE_TESTS" finalAttrs.finalPackage.doCheck)
+
+    (lib.cmakeBool "ENABLE_RELOCATION" true)
+    (lib.cmakeBool "ENABLE_POCL_BUILDING" true)
+    (lib.cmakeBool "POCL_ICD_ABSOLUTE_PATH" true)
+
+    (lib.cmakeBool "ENABLE_TBB_DEVICE" enableTBB)
+    (lib.cmakeBool "ENABLE_ICD" enableICD)
+    (lib.cmakeBool "ENABLE_HWLOC" enableHWLOC)
+    (lib.cmakeBool "ENABLE_LTTNG" enableLTTNG)
+
+    (lib.cmakeBool "ENABLE_REMOTE_CLIENT" enableRemoteClient)
+    (lib.cmakeBool "ENABLE_REMOTE_SERVER" enableRemoteServer)
+
+    # avoid the runtime linker pulling in a different llvm e.g. from graphics drivers
+    (lib.cmakeBool "STATIC_LLVM" staticLLVM)
+  ]
+  ++ lib.optionals (enableNOSV || enableOVNI) [
+    (lib.cmakeBool "ENABLE_NOSV" enableNOSV)
+    (lib.cmakeBool "ENABLE_OVNI" enableOVNI)
+  ]
+  ++ lib.optionals (!isCross && enableDistroVariants) [
+    (lib.cmakeFeature "KERNELLIB_HOST_CPU_VARIANTS" "distro") # TODO: check if we can do it when cross compiling
+  ]
+  ++ lib.optionals isCross [
+    (lib.cmakeFeature "CMAKE_SYSTEM_NAME" "Linux")
+    (lib.cmakeFeature "CMAKE_FIND_ROOT_PATH_MODE_PROGRAM" "NEVER")
+    (lib.cmakeFeature "CMAKE_FIND_ROOT_PATH_MODE_LIBRARY" "ONLY")
+    (lib.cmakeFeature "CMAKE_FIND_ROOT_PATH_MODE_INCLUDE" "ONLY")
+    (lib.cmakeFeature "CMAKE_FIND_ROOT_PATH_MODE_PACKAGE" "ONLY")
+  ]
+  ++ lib.optionals stdenv.hostPlatform.isRiscV [
+    (lib.cmakeFeature "LLC_TRIPLE" "riscv64-unknown-linux-gnu")
+    (lib.cmakeFeature "LLC_HOST_CPU" "rv64g")
+    (lib.cmakeFeature "CLANG_MARCH_FLAG" "-march=")
+  ];
+
+  # Fixes error: ld: cannot find -lgcc / -lgcc_s when linking from libpocl on
+  # host
+  preConfigure = ''
+    cmakeFlagsArray+=(
+      -DEXTRA_HOST_LD_FLAGS="${lib.escapeShellArg (builtins.readFile "${targetPackages.stdenv.cc}/nix-support/cc-ldflags")}"
+      -DEXTRA_KERNEL_FLAGS="${lib.escapeShellArg (builtins.readFile "${targetPackages.stdenv.cc}/nix-support/cc-ldflags")}"
+    )
+  '';
+
+  nativeBuildInputs = [
+    cmake
+    getconf
+    ninja
+    pkg-config
+    python3
+  ];
+
+  buildInputs = [
+    opencl-headers
+    llvmPackages.libclang
+    llvmPackages.llvm
+  ]
+  ++ lib.optionals staticLLVM [ libxml2 ]
+  ++ lib.optionals enableNOSV [ nosv ]
+  ++ lib.optionals enableOVNI [ ovni ]
+  ++ lib.optionals enableHWLOC [ hwloc ]
+  ++ lib.optionals enableTBB [ onetbb ]
+  ++ lib.optionals enableICD [ ocl-icd ]
+  ++ lib.optionals enableLTTNG [ lttng-ust ]
+  ++ lib.optionals enableSPIRV [
+    (spirv-llvm-translator.override { inherit (llvmPackages) llvm; })
+    spirv-tools
+  ];
+
+  nativeInstallCheckInputs = [
+    writableTmpDirAsHomeHook # needed for POCL_CACHE_DIR
+  ];
+
+  doInstallCheck = true;
+
+  installCheckPhase = lib.optionalString enableICD ''
+    runHook preInstallCheck
+
+    export OCL_ICD_VENDORS=$out/etc/OpenCL/vendors
+    $out/bin/poclcc -o poclcc.cl.pocl $src/examples/poclcc/poclcc.cl
+
+    runHook postInstallCheck
+  '';
+
+  setupHook = lib.optionalDrvAttr enableICD (
+    writeText "setup-hook" ''
+      addToSearchPath OCL_ICD_VENDORS @out@/etc/OpenCL/vendors
+    ''
+  );
+
+  passthru = {
+    updateScript = nix-update-script { };
+    git = finalAttrs.finalPackage.override { useGit = true; };
+    test = finalAttrs.finalPackage.overrideAttrs { doCheck = true; };
+    withICD = enableICD;
+  };
+
+  env.HWLOC_SYNTHETIC = lib.optionalDrvAttr enableHWLOC "node:1 core:1 pu:1";
+
+  propagatedBuildInputs = [ stdenv.cc.cc ];
+
+  meta = with lib; {
+    description = "A portable open source (MIT-licensed) implementation of the OpenCL standard";
+    homepage = "http://portablecl.org";
+    license = licenses.mit;
+    maintainers = with maintainers; [
+      leixb
+      jansol
+      xddxdd
+      bsc.maintainers.leixb
+    ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+})

pkgs/slurm-exporter/default.nix

@@ -13,7 +13,6 @@ buildGoModule rec {
 
   vendorHash = "sha256-A1dd9T9SIEHDCiVT2UwV6T02BSLh9ej6LC/2l54hgwI=";
   doCheck = false;
-  strictDeps = true;
 
   meta = with lib; {
     description = "Prometheus SLURM Exporter";

pkgs/sonar/default.nix

@@ -18,7 +18,6 @@ stdenv.mkDerivation rec {
   };
   hardeningDisable = [ "all" ];
   dontStrip = true;
-  strictDeps = true;
   configureFlags = [ "--with-ovni=${ovni}" ];
 
   nativeBuildInputs = [

pkgs/tagaspi/default.nix

@@ -17,7 +17,6 @@ stdenv.mkDerivation rec {
   pname = "tagaspi";
   enableParallelBuilding = true;
   separateDebugInfo = true;
-  strictDeps = true;
 
   version = "2.0";
   src = fetchFromGitHub {

pkgs/tampi/default.nix

@@ -45,7 +45,6 @@ in stdenv.mkDerivation {
   inherit (source) src version;
   enableParallelBuilding = true;
   separateDebugInfo = true;
-  strictDeps = true;
 
   nativeBuildInputs = [
     autoconf

pkgs/upc-qaire-exporter/default.nix

@@ -9,7 +9,6 @@ python3Packages.buildPythonApplication {
   src = ./.;
 
   doCheck = false;
-  strictDeps = true;
 
   build-system = with python3Packages; [
     setuptools

test/compilers/clang-openmp-ld.nix

@@ -23,6 +23,9 @@ in stdenv.mkDerivation {
   dontUnpack = true;
   dontConfigure = true;
 
+  # nOS-V requires access to /sys/devices to request NUMA information
+  requiredSystemFeatures = [ "sys-devices" ];
+
   buildInputs = [ openmp ];
 
   buildPhase = ''

test/compilers/opencl.c

@@ -0,0 +1,127 @@
+#include <CL/cl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define BUF_LEN 128
+
+cl_int exit_err = CL_SUCCESS;
+
+#define CHECK(cmd)                                                             \
+  do {                                                                         \
+    cl_int err = cmd;                                                          \
+    if (err != CL_SUCCESS) {                                                   \
+      printf("[ERROR] " #cmd " (Error code: %d)\n"                             \
+             "@ "__FILE__                                                      \
+             ":%d",                                                            \
+             err, __LINE__);                                                   \
+      exit_err = err;                                                          \
+      goto cleanup;                                                            \
+    }                                                                          \
+  } while (0)
+
+const char *kernel_source = "__kernel void vector_add(__global const float *a, "
+                            "__global const float *b, __global float *c) {\n"
+                            "    int gid = get_global_id(0);\n"
+                            "    c[gid] = a[gid] + b[gid];\n"
+                            "}\n";
+
+cl_int test_kernel_compilation(cl_platform_id platform) {
+  cl_device_id device = NULL;
+  cl_context context = NULL;
+  cl_program program = NULL;
+  cl_int err = CL_SUCCESS;
+  char device_name[BUF_LEN];
+
+  // Get first device for this platform
+  CHECK(clGetDeviceIDs(platform, CL_DEVICE_TYPE_ALL, 1, &device, NULL));
+
+  // Get device name
+  CHECK(clGetDeviceInfo(device, CL_DEVICE_NAME, sizeof(device_name),
+                        device_name, NULL));
+  printf("    Device: %s\n", device_name);
+
+  context = clCreateContext(NULL, 1, &device, NULL, NULL, &err);
+  CHECK(err);
+
+  program = clCreateProgramWithSource(context, 1, &kernel_source, NULL, &err);
+  CHECK(err);
+
+  err = clBuildProgram(program, 1, &device, NULL, NULL, NULL);
+  if (err != CL_SUCCESS) {
+    printf("      [ERROR] Kernel compilation failed (Error code: %d)\n", err);
+
+    // Build log
+    size_t log_size;
+    CHECK(clGetProgramBuildInfo(program, device, CL_PROGRAM_BUILD_LOG, 0, NULL,
+                                &log_size));
+    char *log = (char *)malloc(log_size);
+    CHECK(clGetProgramBuildInfo(program, device, CL_PROGRAM_BUILD_LOG, log_size,
+                                log, NULL));
+    printf("      Build log:\n%s\n", log);
+    free(log);
+    goto cleanup;
+  }
+
+  printf("      [OK] Kernel compiled successfully!\n");
+
+cleanup:
+  if (program)
+    clReleaseProgram(program);
+  if (context)
+    clReleaseContext(context);
+  printf("\n");
+
+  return exit_err;
+}
+
+int main() {
+  cl_uint num_platforms;
+  cl_platform_id *platforms = NULL;
+
+  // Get number of platforms
+  CHECK(clGetPlatformIDs(0, NULL, &num_platforms));
+
+  printf("Found %d OpenCL platform(s)\n\n", num_platforms);
+
+  if (num_platforms == 0) {
+    printf("No OpenCL platforms found!\n");
+    return EXIT_FAILURE;
+  }
+
+  // Allocate memory for platforms
+  platforms = (cl_platform_id *)malloc(sizeof(cl_platform_id) * num_platforms);
+
+  // Get platform IDs
+  CHECK(clGetPlatformIDs(num_platforms, platforms, NULL));
+
+  // Query each platform and test kernel compilation
+  for (cl_uint i = 0; i < num_platforms; i++) {
+    char platform_name[BUF_LEN];
+    char platform_vendor[BUF_LEN];
+    char platform_version[BUF_LEN];
+
+    CHECK(clGetPlatformInfo(platforms[i], CL_PLATFORM_NAME,
+                            sizeof(platform_name), platform_name, NULL));
+    CHECK(clGetPlatformInfo(platforms[i], CL_PLATFORM_VENDOR,
+                            sizeof(platform_vendor), platform_vendor, NULL));
+    CHECK(clGetPlatformInfo(platforms[i], CL_PLATFORM_VERSION,
+                            sizeof(platform_version), platform_version, NULL));
+
+    printf("Platform %d: %s\n", i, platform_name);
+    printf("  Vendor: %s\n", platform_vendor);
+    printf("  Version: %s\n", platform_version);
+
+    // Test kernel compilation
+    CHECK(test_kernel_compilation(platforms[i]));
+  }
+
+cleanup:
+  if (platforms)
+    free(platforms);
+
+  if (exit_err == CL_SUCCESS)
+    return EXIT_SUCCESS;
+
+  return EXIT_FAILURE;
+}

test/compilers/opencl.nix

@@ -0,0 +1,104 @@
+{
+  stdenv,
+  ocl-icd,
+  opencl-headers,
+  pocl,
+  clinfo,
+  runCommand,
+  lib,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "opencl-pocl-test";
+  version = "1.0.0";
+
+  src = ./opencl.c;
+
+  dontUnpack = true;
+  dontConfigure = true;
+
+  buildInputs = [
+    ocl-icd
+    opencl-headers
+  ];
+
+  buildPhase = ''
+    runHook preBuild
+
+    $CC -Wall -Wextra -D CL_TARGET_OPENCL_VERSION=100 $src -o ocl-hello -lOpenCL
+
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/bin
+    cp ocl-hello $out/bin
+
+    runHook postInstall
+  '';
+
+  passthru = {
+    test-icd =
+      runCommand "custom-clinfo"
+        {
+          nativeBuildInputs =
+            assert !(lib.hasPrefix "pocl" ocl-icd.pname);
+            [
+              clinfo
+              finalAttrs.finalPackage
+              pocl
+            ];
+
+          env = {
+            POCL_DEBUG = "error,warn";
+            POCL_CACHE_DIR = "/build/pocl_cache";
+          };
+
+          requiredSystemFeatures = [ "sys-devices" ];
+        }
+
+        ''
+          set -x
+
+          mkdir $out
+
+          clinfo -l >$out/clinfo
+          clinfo >$out/clinfo-full
+
+          ocl-hello >$out/hello
+
+          for i in $out/*; do
+            grep "Portable Computing Language" $i
+          done
+
+          echo $OCL_ICD_VENDORS >$out/env
+
+          grep "pocl.*/etc/OpenCL/vendors" $out/env
+
+          set +x
+        '';
+    # this needs: ocl-icd = pocl-noicd
+    test-noicd =
+      runCommand "custom-clinfo"
+        {
+          nativeBuildInputs = [
+            finalAttrs.finalPackage
+          ];
+
+          env = {
+            POCL_DEBUG = "error,warn";
+            POCL_CACHE_DIR = "/build/pocl_cache";
+          };
+
+          requiredSystemFeatures = [ "sys-devices" ];
+        }
+
+        ''
+          ocl-hello >$out
+
+          grep "Portable Computing Language" $out
+        '';
+  };
+})

test/compilers/pocl.nix

@@ -0,0 +1,27 @@
+{
+  runCommand,
+  pocl,
+  clinfo,
+}:
+
+runCommand "clinfo-pocl"
+  {
+    nativeBuildInputs = [
+      clinfo
+      pocl
+    ];
+
+    requiredSystemFeatures = [ "sys-devices" ];
+
+    env = {
+      POCL_DEBUG = "error,warn";
+      POCL_CACHE_DIR = "/build/pocl_cache";
+    };
+  }
+  ''
+    echo $OCL_ICD_VENDORS
+    clinfo >$out
+
+    # check that we have PoCL:
+    grep "Portable Computing Language" $out
+  ''