portable: fix out-of-memory (#3297)

nix/overlay/lldb.nix

@@ -20,6 +20,7 @@ let
       prev.callPackage (
         {
           llvmPackages,
+          llvmPackages_20,
           cmake,
           which,
           swig,
@@ -29,7 +30,14 @@ let
           python3,
           lua5_3,
         }:
-        (prev.pwndbg_lldb.override { stdenv = llvmPackages.stdenv; }).overrideAttrs (old: {
+        (prev.pwndbg_lldb.override {
+          stdenv = llvmPackages.stdenv;
+          # Out-of-memory when building with debuginfo enabled.. build use more than 32gb+ ram
+          libclang = llvmPackages_20.libclang.overrideAttrs (old: {
+            separateDebugInfo = false;
+          });
+        }).overrideAttrs
+          (old: {
             patches = (old.patches or [ ]) ++ [
               ./lldb-fix-cross-python.patch
             ];