Fix nanos6 cross-compilation for riscv

Even if we do an override to papi get the proper configure flags for
cross-compiling, the memory fences are not defined for risc-v:

mb.h:67:2: error: #error Need to define rmb for this architecture!

.gitea/workflows/ci.yaml

@@ -0,0 +1,15 @@
+name: CI
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:all:
+    runs-on: native
+    steps:
+      - uses: https://gitea.com/ScMi1/checkout@v1.4
+      - run: nix build -L --no-link --print-out-paths .#bsc-ci.all

overlay.nix

@@ -6,9 +6,6 @@ with final.lib;
 let
   callPackage = final.callPackage;
 
-  mkDeps = name: pkgs: final.runCommand name { }
-    "printf '%s\n' ${toString (collect (x: x ? outPath) pkgs)} > $out";
-
   bscPkgs = {
     bench6 = callPackage ./pkgs/bench6/default.nix { };
     bigotes = callPackage ./pkgs/bigotes/default.nix { };
@@ -49,62 +46,74 @@ let
     wxparaver = callPackage ./pkgs/paraver/default.nix { };
   };
 
+  test = rec {
+    #hwloc = callPackage ./test/bugs/hwloc.nix { }; # Broken, no /sys
+    #sigsegv = callPackage ./test/reproducers/sigsegv.nix { };
+    hello-c = callPackage ./test/compilers/hello-c.nix { };
+    hello-cpp = callPackage ./test/compilers/hello-cpp.nix { };
+    lto = callPackage ./test/compilers/lto.nix { };
+    asan = callPackage ./test/compilers/asan.nix { };
+    intel2023-icx-c   = hello-c.override   { stdenv = final.intelPackages_2023.stdenv; };
+    intel2023-icc-c   = hello-c.override   { stdenv = final.intelPackages_2023.stdenv-icc; };
+    intel2023-icx-cpp = hello-cpp.override { stdenv = final.intelPackages_2023.stdenv; };
+    intel2023-icc-cpp = hello-cpp.override { stdenv = final.intelPackages_2023.stdenv-icc; };
+    intel2023-ifort   = callPackage ./test/compilers/hello-f.nix {
+      stdenv = final.intelPackages_2023.stdenv-ifort;
+    };
+    clangOmpss2-lto   = lto.override       { stdenv = final.stdenvClangOmpss2Nanos6; };
+    clangOmpss2-asan  = asan.override      { stdenv = final.stdenvClangOmpss2Nanos6; };
+    clangOmpss2-task  = callPackage ./test/compilers/ompss2.nix {
+      stdenv = final.stdenvClangOmpss2Nanos6;
+    };
+    clangNodes-task = callPackage ./test/compilers/ompss2.nix {
+      stdenv = final.stdenvClangOmpss2Nodes;
+    };
+    clangNosvOpenmp-task = callPackage ./test/compilers/clang-openmp.nix {
+      stdenv = final.stdenvClangOmpss2Nodes;
+    };
+    clangNosvOmpv-nosv = callPackage ./test/compilers/clang-openmp-nosv.nix {
+      stdenv = final.stdenvClangOmpss2NodesOmpv;
+    };
+    clangNosvOmpv-ld = callPackage ./test/compilers/clang-openmp-ld.nix {
+      stdenv = final.stdenvClangOmpss2NodesOmpv;
+    };
+  };
+
+  pkgs = filterAttrs (_: isDerivation) bscPkgs;
+
+  crossTargets = [ "riscv64" ];
+  cross = prev.lib.genAttrs crossTargets (target:
+    final.pkgsCross.${target}.bsc-ci.pkgs
+  );
+
+  buildList = name: paths:
+    final.runCommandLocal name { } ''
+      printf '%s\n' ${toString paths} | tee $out
+    '';
+
+  buildList' = name: paths:
+    final.runCommandLocal name { } ''
+      deps="${toString paths}"
+      cat $deps
+      printf '%s\n' $deps >$out
+    '';
+
+  crossList = builtins.mapAttrs (t: v: buildList t (builtins.attrValues v)) cross;
+
+  pkgsList = buildList "ci-pkgs" (builtins.attrValues pkgs);
+  tests = buildList "ci-tests" (collect isDerivation test);
+
+  all = buildList' "ci-all" [ pkgsList tests ];
+
 in bscPkgs // {
   # Prevent accidental usage of bsc attribute
   bsc = throw "the bsc attribute is deprecated, packages are now in the root";
 
   # Internal for our CI tests
   bsc-ci = {
-    test = rec {
-      #hwloc = callPackage ./test/bugs/hwloc.nix { }; # Broken, no /sys
-      #sigsegv = callPackage ./test/reproducers/sigsegv.nix { };
-      hello-c = callPackage ./test/compilers/hello-c.nix { };
-      hello-cpp = callPackage ./test/compilers/hello-cpp.nix { };
-      lto = callPackage ./test/compilers/lto.nix { };
-      asan = callPackage ./test/compilers/asan.nix { };
-      intel2023-icx-c   = hello-c.override   { stdenv = final.intelPackages_2023.stdenv; };
-      intel2023-icc-c   = hello-c.override   { stdenv = final.intelPackages_2023.stdenv-icc; };
-      intel2023-icx-cpp = hello-cpp.override { stdenv = final.intelPackages_2023.stdenv; };
-      intel2023-icc-cpp = hello-cpp.override { stdenv = final.intelPackages_2023.stdenv-icc; };
-      intel2023-ifort   = callPackage ./test/compilers/hello-f.nix {
-        stdenv = final.intelPackages_2023.stdenv-ifort;
-      };
-      clangOmpss2-lto   = lto.override       { stdenv = final.stdenvClangOmpss2Nanos6; };
-      clangOmpss2-asan  = asan.override      { stdenv = final.stdenvClangOmpss2Nanos6; };
-      clangOmpss2-task  = callPackage ./test/compilers/ompss2.nix {
-        stdenv = final.stdenvClangOmpss2Nanos6;
-      };
-      clangNodes-task = callPackage ./test/compilers/ompss2.nix {
-        stdenv = final.stdenvClangOmpss2Nodes;
-      };
-      clangNosvOpenmp-task = callPackage ./test/compilers/clang-openmp.nix {
-        stdenv = final.stdenvClangOmpss2Nodes;
-      };
-      clangNosvOmpv-nosv = callPackage ./test/compilers/clang-openmp-nosv.nix {
-        stdenv = final.stdenvClangOmpss2NodesOmpv;
-      };
-      clangNosvOmpv-ld = callPackage ./test/compilers/clang-openmp-ld.nix {
-        stdenv = final.stdenvClangOmpss2NodesOmpv;
-      };
-    };
-
-    pkgs = filterAttrs (_: isDerivation) bscPkgs;
-
-    pkgsList = final.runCommand "ci-pkgs" { }
-      "printf '%s\n' ${toString (collect isDerivation bscPkgs)} > $out";
-
-    tests = final.runCommand "ci-tests" { }
-      "printf '%s\n' ${toString (collect isDerivation final.bsc-ci.test)} > $out";
-
-    cross = prev.lib.genAttrs [ "riscv64" ] (target:
-      final.pkgsCross.${target}.bsc-ci.pkgs
-    );
-
-    all = final.runCommand "ci-all" { }
-    ''
-      deps="${toString [ final.bsc-ci.pkgsList final.bsc-ci.tests ]}"
-      cat $deps
-      printf '%s\n' $deps > $out
-    '';
+    inherit pkgs pkgsList;
+    inherit test tests;
+    inherit cross crossList;
+    inherit all;
   };
 }