Add install check for OpenMP{,-V}

Reviewed-by: Rodrigo Arias Mallo <rodrigo.arias@bsc.es>

flake.nix

@@ -5,14 +5,19 @@
 
   outputs = { self, nixpkgs, ... }:
 let
-  forAllSystems = nixpkgs.lib.genAttrs [ "x86_64-linux" "aarch64-linux" "armv6l-linux" "armv7l-linux" "i686-linux" "riscv64-linux" ];
-
   mkConf = name: nixpkgs.lib.nixosSystem {
     system = "x86_64-linux";
     specialArgs = { inherit nixpkgs; theFlake = self; };
     modules = [ "${self.outPath}/m/${name}/configuration.nix" ];
   };
-  in
+  # For now we only support x86
+  system = "x86_64-linux";
+  pkgs = import nixpkgs {
+    inherit system;
+    overlays = [ self.overlays.default ];
+    config.allowUnfree = true;
+  };
+in
   {
     nixosConfigurations = {
       hut     = mkConf "hut";
@@ -33,15 +38,9 @@ let
     overlays.default = self.bscOverlay;
 
     # full nixpkgs with our overlay applied
-    legacyPackages = forAllSystems (system:
+    legacyPackages.${system} = pkgs;
-      import nixpkgs {
-        inherit system;
-        overlays = [ self.overlays.default ];
-        config.allowUnfree = true;
-      }
-    );
 
-    hydraJobs = self.legacyPackages.x86_64-linux.bsc.hydraJobs;
+    hydraJobs = self.legacyPackages.${system}.bsc.hydraJobs;
 
     # propagate nixpkgs lib, so we can do bscpkgs.lib
     lib = nixpkgs.lib // {

overlay.nix

@@ -48,6 +48,7 @@ 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 { };
     prometheus-slurm-exporter = prev.callPackage ./pkgs/slurm-exporter/default.nix { };
     #pscom = callPackage ./pkgs/parastation/pscom.nix { }; # Unmaintaned
@@ -61,16 +62,6 @@ let
     tagaspi = callPackage ./pkgs/tagaspi/default.nix { };
     tampi = callPackage ./pkgs/tampi/default.nix { };
     upc-qaire-exporter = prev.callPackage ./pkgs/upc-qaire-exporter/default.nix { };
-    upx = prev.upx.overrideAttrs {
-      version = "5.1.0";
-      src = final.fetchFromGitHub {
-        owner = "upx";
-        repo = "upx";
-        tag = "v5.1.0";
-        fetchSubmodules = true;
-        hash = "sha256-FQtDHsbZ/JrgRLwc2Wd2F5ZcBdqrU0YIT9hGQ0k0D+w=";
-      };
-    };
     wxparaver = callPackage ./pkgs/paraver/default.nix { };
   };
 

pkgs/amd-uprof/default.nix

@@ -41,6 +41,7 @@ in
     pname = "AMD-uProf";
     inherit src version;
     dontStrip = true;
+    strictDeps = true;
     phases = [ "installPhase" "fixupPhase" ];
     nativeBuildInputs = [ autoPatchelfHook radare2 ];
     buildInputs = [

pkgs/amd-uprof/driver.nix

@@ -18,6 +18,7 @@ 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

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

pkgs/bigotes/default.nix

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

pkgs/cudainfo/default.nix

@@ -10,11 +10,14 @@
 stdenv.mkDerivation (finalAttrs: {
   name = "cudainfo";
   src = ./.;
-  buildInputs = [
+  strictDeps = true;
+  nativeBuildInputs = [
     cudatoolkit # Required for nvcc
-    (lib.getOutput "static" cudaPackages.cuda_cudart) # Required for -lcudart_static
     autoAddDriverRunpath
   ];
+  buildInputs = [
+    (lib.getOutput "static" cudaPackages.cuda_cudart) # Required for -lcudart_static
+  ];
   installPhase = ''
     mkdir -p $out/bin
     cp -a cudainfo $out/bin
@@ -23,6 +26,7 @@ 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 ? stdenv.hostPlatform == stdenv.buildPlatform # Disabled when cross-compiling
+, enablePapi ? true
 }:
 
 let

pkgs/gpi-2/default.nix

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

pkgs/intel-oneapi/2023.nix

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

pkgs/llvm-ompss2/clang.nix

@@ -49,6 +49,7 @@ in stdenv.mkDerivation {
   inherit (source) src version;
 
   enableParallelBuilding = true;
+  strictDeps = true;
 
   passthru = {
     CC = "clang";

pkgs/llvm-ompss2/openmp.nix

@@ -39,7 +39,9 @@ stdenv.mkDerivation rec {
     perl
     pkg-config
     python3
-  ] ++ lib.optionals enableNosv [
+  ];
+
+  buildInputs = lib.optionals enableNosv [
     nosv
   ] ++ lib.optionals enableOvni [
     ovni
@@ -54,6 +56,7 @@ stdenv.mkDerivation rec {
   dontStrip = enableDebug;
 
   separateDebugInfo = true;
+  strictDeps = true;
 
   cmakeFlags = [
     "-DLIBOMP_OMPD_SUPPORT=OFF"
@@ -71,6 +74,28 @@ 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

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

pkgs/meteocat-exporter/default.nix

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

pkgs/mpich/default.nix

@@ -53,6 +53,7 @@ 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 ? stdenv.hostPlatform == stdenv.buildPlatform # Disabled when cross-compiling
+, enablePapi ? true
 , useGit ? false
 , gitUrl ? "ssh://git@bscpm04.bsc.es/nanos6/nanos6"
 , gitBranch ? "master"
@@ -80,7 +80,8 @@ 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 isCross "--with-symbol-resolution=ifunc") ++
+      (optional enablePapi "--with-papi=${papi}");
 
     postConfigure = lib.optionalString (!enableDebug) ''
       # Disable debug
@@ -95,16 +96,14 @@ 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/nix-portable/default.nix

@@ -19,16 +19,6 @@ with builtins;
   compression ? "zstd -19 -T0",
   lib ? pkgs.lib,
   pkgs ? import <nixpkgs> {},
-
-  # pkgs set from the host system (just for eval in installDynamic)
-  pkgsHost ?
-    if stdenv.hostPlatform == stdenv.buildPlatform then
-      pkgs
-    else
-      import pkgs.path {
-        system = pkgs.stdenv.hostPlatform.system;
-      },
-
   # hardcode executable to run. Useful when creating a bundle.
   bundledPackage ? null,
 
@@ -59,7 +49,7 @@ let
     in
     stdenv.mkDerivation {
       name = "nix-portable-store-tarball";
-      nativeBuildInputs = [ perl pkgs.zstd ];
+      nativeBuildInputs = [ perl zstd ];
       exportReferencesGraph = map (x: [("closure-" + baseNameOf x) x]) targets;
       buildCommand = ''
         storePaths=$(cat ${closureInfo}/store-paths)
@@ -96,9 +86,9 @@ let
   '';
 
   installDynamic = pkgname: let
-    out = builtins.unsafeDiscardStringContext pkgsHost.${pkgname}.out.outPath;
+    out = pkgs.${pkgname}.out;
   in ''
-    if [ ! -e \$store${lib.removePrefix "/nix/store" out} ] ; then
+    if [ ! -e \$store${lib.removePrefix "/nix/store" pkgs.${pkgname}.out} ] ; then
       debug "Installing ${pkgname}"
       \$run \$store${lib.removePrefix "/nix/store" nix}/bin/nix build --impure --no-link --expr "
         (import ${nixpkgsSrc} {}).${pkgname}.out
@@ -110,9 +100,7 @@ let
     export PATH="${out}/bin:\$PATH"
   '';
 
-  caBundleZstd = pkgs.runCommand "cacerts" {
+  caBundleZstd = pkgs.runCommand "cacerts" {} "cat ${cacert}/etc/ssl/certs/ca-bundle.crt | ${zstd}/bin/zstd -19 > $out";
-    nativeBuildInputs = [ pkgs.zstd ];
-  } "cat ${cacert}/etc/ssl/certs/ca-bundle.crt | zstd -19 > $out";
 
   bwrap = packStaticBin "${bwrapStatic}/bin/bwrap";
   nixStatic = packStaticBin "${inp.nixStatic}/bin/nix";
@@ -264,7 +252,7 @@ let
     fi
 
     # Override $SHELL with nix bashInteractive
-    export SHELL="${builtins.unsafeDiscardStringContext pkgsHost.bashInteractive.out.outPath}/bin/bash"
+    export SHELL="${pkgs.bashInteractive.out}/bin/bash"
     export PS1="\n\[\033[1;32m\][\[\e]0;\u@\h: \w\a\]\u@\h:\w]\$\[\033[0m\] "
 
     # unset bash function aliases
@@ -309,7 +297,7 @@ let
 
 
     collectBinds(){
-      pathsTopLevel="/boot /run /sys \$PWD /gpfs /tmp /scratch /home"
+      pathsTopLevel="/boot /run /sys \$PWD /gpfs /tmp /scratch"
 
       toBind=""
       for p in \$pathsTopLevel; do
@@ -603,7 +591,7 @@ let
   runtimeScriptEscaped = replaceStrings ["\""] ["\\\""] runtimeScript;
 
   nixPortable = pkgs.runCommand pname {
-    nativeBuildInputs = [unixtools.xxd unzip pkgs.zip];
+    nativeBuildInputs = [unixtools.xxd unzip];
 
     meta = {
       homepage = "https://github.com/DavHau/nix-portable";
@@ -631,7 +619,7 @@ let
 
     unzip -vl $out/bin/nix-portable.zip
 
-    zip="zip -0"
+    zip="${zip}/bin/zip -0"
     $zip $out/bin/nix-portable.zip ${bwrap}/bin/bwrap
     $zip $out/bin/nix-portable.zip ${nixStatic}/bin/nix
     $zip $out/bin/nix-portable.zip ${zstd}/bin/zstd
@@ -642,7 +630,7 @@ let
     fp=$(sha256sum $out/bin/nix-portable.zip | cut -d " "  -f 1)
     sed -i "s/_FINGERPRINT_PLACEHOLDER_/$fp/g" $out/bin/nix-portable.zip
     # fix broken zip header due to manual modification
-    zip -F $out/bin/nix-portable.zip --out $out/bin/nix-portable-fixed.zip
+    ${zip}/bin/zip -F $out/bin/nix-portable.zip --out $out/bin/nix-portable-fixed.zip
 
     rm $out/bin/nix-portable.zip
     executable=${if bundledPackage == null then "" else bundledExe}

pkgs/nixgen/default.nix

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

pkgs/nixtools/default.nix

@@ -16,6 +16,7 @@ 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

@@ -48,6 +48,7 @@ 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 ? stdenv.hostPlatform == stdenv.buildPlatform # Disabled when cross-compiling
+, enablePapi ? true
 , cacheline ? 64 # bits
 , ovni ? null
 , useGit ? false
@@ -40,16 +40,17 @@ let
 
   source = if (useGit) then git else release;
 in
-  stdenv.mkDerivation rec {
+  stdenv.mkDerivation {
     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
@@ -59,6 +60,7 @@ 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

@@ -0,0 +1,136 @@
+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

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

pkgs/ovni/default.nix

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

pkgs/papi/default.nix

@@ -0,0 +1,29 @@
+{
+  stdenv,
+  papi,
+}:
+
+if stdenv.hostPlatform == stdenv.buildPlatform then
+  papi
+else
+  papi.overrideAttrs (old: {
+    configureFlags = (old.configureFlags or [ ]) ++ [
+      # Only perf-events works when cross compiling, since for the rest, papi's
+      # configure.in uses `test -f` which is not allowed when cross-compiling.
+      # FIXME: patch configure.in to skip the faulty checks when cross-compiling
+      "--disable-perf-event-uncore"
+      "--with-sysdetect=no"
+
+      # Flags below are adapted from "cross compile sample" in papi's
+      # src/configure.in. (--host is already set by nix). Verified to
+      # cross-compile in both riscv64 and aarch64-multiplatform targets.
+      "--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

@@ -0,0 +1,19 @@
+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

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

pkgs/paraver/kernel.nix

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

pkgs/slurm-exporter/default.nix

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

pkgs/sonar/default.nix

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

pkgs/tagaspi/default.nix

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

pkgs/tampi/default.nix

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

pkgs/upc-qaire-exporter/default.nix

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

test/compilers/clang-openmp-ld.nix

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