diff --git a/pkgs/development/compilers/llvm/common/clang/default.nix b/pkgs/development/compilers/llvm/common/clang/default.nix
index dce11c11eb5a..374082a3ccda 100644
--- a/pkgs/development/compilers/llvm/common/clang/default.nix
+++ b/pkgs/development/compilers/llvm/common/clang/default.nix
@@ -12,6 +12,7 @@
   release_version,
   version,
   python3,
+  perl,
   buildLlvmPackages,
   fixDarwinDylibNames,
   enableManpages ? false,
@@ -97,6 +98,8 @@ stdenv.mkDerivation (
     buildInputs = [
       libxml2
       libllvm
+      python3
+      perl
     ];
 
     strictDeps = true;
diff --git a/pkgs/development/compilers/llvm/common/compiler-rt/default.nix b/pkgs/development/compilers/llvm/common/compiler-rt/default.nix
index e04c667ff0ca..fb3f7eb49515 100644
--- a/pkgs/development/compilers/llvm/common/compiler-rt/default.nix
+++ b/pkgs/development/compilers/llvm/common/compiler-rt/default.nix
@@ -128,7 +128,10 @@ stdenv.mkDerivation (finalAttrs: {
   ]
   ++ lib.optionals stdenv.hostPlatform.isDarwin [ jq ];
   buildInputs =
-    lib.optional (stdenv.hostPlatform.isLinux && stdenv.hostPlatform.isRiscV) linuxHeaders
+    lib.optionals (!stdenv.hostPlatform.useLLVM) [
+      python3 # FIXME: infinite recursion for pkgsLLVM
+    ]
+    ++ lib.optional (stdenv.hostPlatform.isLinux && stdenv.hostPlatform.isRiscV) linuxHeaders
     ++ lib.optional (stdenv.hostPlatform.isFreeBSD) freebsd.include;
 
   strictDeps = true;
diff --git a/pkgs/development/compilers/llvm/common/libc/default.nix b/pkgs/development/compilers/llvm/common/libc/default.nix
index 462ad355317e..9ecd7577139d 100644
--- a/pkgs/development/compilers/llvm/common/libc/default.nix
+++ b/pkgs/development/compilers/llvm/common/libc/default.nix
@@ -54,7 +54,10 @@ stdenv.mkDerivation (finalAttrs: {
   ]
   ++ (lib.optional needHdrGen python3Packages.pyyaml);
 
-  buildInputs = lib.optional (isFullBuild && stdenv.hostPlatform.isLinux) linuxHeaders;
+  buildInputs = [
+    python3
+  ]
+  ++ lib.optional (isFullBuild && stdenv.hostPlatform.isLinux) linuxHeaders;
 
   strictDeps = true;
 
diff --git a/pkgs/development/compilers/llvm/common/llvm/default.nix b/pkgs/development/compilers/llvm/common/llvm/default.nix
index 8808e9987e97..db786fee87bb 100644
--- a/pkgs/development/compilers/llvm/common/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/common/llvm/default.nix
@@ -298,6 +298,7 @@ stdenv.mkDerivation (
     buildInputs = [
       libxml2
       libffi
+      python3 # for opt-viewer scripts
     ]
     ++ optional enablePFM libpfm; # exegesis
 
diff --git a/pkgs/development/compilers/llvm/common/mlir/default.nix b/pkgs/development/compilers/llvm/common/mlir/default.nix
index 1727e16a54a5..68a9169d321b 100644
--- a/pkgs/development/compilers/llvm/common/mlir/default.nix
+++ b/pkgs/development/compilers/llvm/common/mlir/default.nix
@@ -8,6 +8,7 @@
   runCommand,
   cmake,
   ninja,
+  bashNonInteractive,
   libxml2,
   libllvm,
   version,
@@ -68,6 +69,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   buildInputs = [
+    bashNonInteractive
     libllvm
     libxml2
   ];