Set LLVM_BUILD_NATIVE=ON

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

pkgs/gpi-2/default.nix

@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
 
   configureFlags = [
     "--with-infiniband=${rdma-core-all}"
-    "--with-mpi=yes"
+    "--with-mpi=yes" # fixes mpi detection when cross-compiling
     "--with-slurm"
     "CFLAGS=-fPIC"
     "CXXFLAGS=-fPIC"
@@ -70,6 +70,6 @@ stdenv.mkDerivation rec {
     maintainers = with lib.maintainers.bsc; [ rarias ];
     platforms = lib.platforms.linux;
     license = lib.licenses.gpl3Plus;
-    cross = false;
+    cross = false; # infiniband detection does not work
   };
 }

pkgs/llvm-ompss2/clang.nix

@@ -17,6 +17,7 @@
 , gitUrl ? "ssh://git@bscpm04.bsc.es/llvm-ompss/llvm-mono.git"
 , gitBranch ? "master"
 , gitCommit ? "872ba63f86edaefc9787984ef3fae9f2f94e0124" # github-release-2025.11
+, buildLlvmPackages
 }:
 
 let
@@ -119,6 +120,8 @@ in stdenv.mkDerivation {
       "-DCMAKE_INSTALL_RPATH=${zlib}/lib:${gcc.cc.lib}/lib"
       "-DLLVM_APPEND_VC_REV=ON"
       "-DLLVM_FORCE_VC_REVISION=${source.version}"
+      "-DLLVM_TABLEGEN_EXE=${buildLlvmPackages.tblgen}/bin/llvm-tblgen"
+      "-DCLANG_TABLEGEN=${buildLlvmPackages.tblgen}/bin/clang-tblgen"
     )
   '';