diff --git a/pkgs/development/compilers/ghc/8.10.7.nix b/pkgs/development/compilers/ghc/8.10.7.nix
index 89e9228635e3..40b57223fa1d 100644
--- a/pkgs/development/compilers/ghc/8.10.7.nix
+++ b/pkgs/development/compilers/ghc/8.10.7.nix
@@ -238,11 +238,11 @@ stdenv.mkDerivation (rec {
     export OTOOL="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}otool"
     export INSTALL_NAME_TOOL="${bintoolsFor.install_name_tool}/bin/${bintoolsFor.install_name_tool.targetPrefix}install_name_tool"
   '' + lib.optionalString useLLVM ''
-    export LLC="${lib.getBin llvmPackages.llvm}/bin/llc"
-    export OPT="${lib.getBin llvmPackages.llvm}/bin/opt"
+    export LLC="${lib.getBin buildTargetLlvmPackages.llvm}/bin/llc"
+    export OPT="${lib.getBin buildTargetLlvmPackages.llvm}/bin/opt"
   '' + lib.optionalString (useLLVM && stdenv.targetPlatform.isDarwin) ''
     # LLVM backend on Darwin needs clang: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/codegens.html#llvm-code-generator-fllvm
-    export CLANG="${llvmPackages.clang}/bin/${llvmPackages.clang.targetPrefix}clang"
+    export CLANG="${buildTargetLlvmPackages.clang}/bin/${buildTargetLlvmPackages.clang.targetPrefix}clang"
   '' + ''
 
     echo -n "${buildMK}" > mk/build.mk
diff --git a/pkgs/development/compilers/ghc/8.8.4.nix b/pkgs/development/compilers/ghc/8.8.4.nix
index 3f8c078fb2cc..3ce47a20bad8 100644
--- a/pkgs/development/compilers/ghc/8.8.4.nix
+++ b/pkgs/development/compilers/ghc/8.8.4.nix
@@ -225,11 +225,11 @@ stdenv.mkDerivation (rec {
     export READELF="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}readelf"
     export STRIP="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}strip"
   '' + lib.optionalString useLLVM ''
-    export LLC="${lib.getBin llvmPackages.llvm}/bin/llc"
-    export OPT="${lib.getBin llvmPackages.llvm}/bin/opt"
+    export LLC="${lib.getBin buildTargetLlvmPackages.llvm}/bin/llc"
+    export OPT="${lib.getBin buildTargetLlvmPackages.llvm}/bin/opt"
   '' + lib.optionalString (useLLVM && stdenv.targetPlatform.isDarwin) ''
     # LLVM backend on Darwin needs clang: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/codegens.html#llvm-code-generator-fllvm
-    export CLANG="${llvmPackages.clang}/bin/${llvmPackages.clang.targetPrefix}clang"
+    export CLANG="${buildTargetLlvmPackages.clang}/bin/${buildTargetLlvmPackages.clang.targetPrefix}clang"
   '' + ''
 
     echo -n "${buildMK dontStrip}" > mk/build.mk
diff --git a/pkgs/development/compilers/ghc/9.0.1.nix b/pkgs/development/compilers/ghc/9.0.1.nix
index 41b136b6f8c7..3f13fe1b9e1b 100644
--- a/pkgs/development/compilers/ghc/9.0.1.nix
+++ b/pkgs/development/compilers/ghc/9.0.1.nix
@@ -204,11 +204,11 @@ stdenv.mkDerivation (rec {
     export OTOOL="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}otool"
     export INSTALL_NAME_TOOL="${bintoolsFor.install_name_tool}/bin/${bintoolsFor.install_name_tool.targetPrefix}install_name_tool"
   '' + lib.optionalString useLLVM ''
-    export LLC="${lib.getBin llvmPackages.llvm}/bin/llc"
-    export OPT="${lib.getBin llvmPackages.llvm}/bin/opt"
+    export LLC="${lib.getBin buildTargetLlvmPackages.llvm}/bin/llc"
+    export OPT="${lib.getBin buildTargetLlvmPackages.llvm}/bin/opt"
   '' + lib.optionalString (useLLVM && stdenv.targetPlatform.isDarwin) ''
     # LLVM backend on Darwin needs clang: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/codegens.html#llvm-code-generator-fllvm
-    export CLANG="${llvmPackages.clang}/bin/${llvmPackages.clang.targetPrefix}clang"
+    export CLANG="${buildTargetLlvmPackages.clang}/bin/${buildTargetLlvmPackages.clang.targetPrefix}clang"
   '' + ''
 
     echo -n "${buildMK}" > mk/build.mk
diff --git a/pkgs/development/compilers/ghc/9.2.1.nix b/pkgs/development/compilers/ghc/9.2.1.nix
index bfbf75ac83a6..77d741a4f2b8 100644
--- a/pkgs/development/compilers/ghc/9.2.1.nix
+++ b/pkgs/development/compilers/ghc/9.2.1.nix
@@ -205,11 +205,11 @@ stdenv.mkDerivation (rec {
     export OTOOL="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}otool"
     export INSTALL_NAME_TOOL="${bintoolsFor.install_name_tool}/bin/${bintoolsFor.install_name_tool.targetPrefix}install_name_tool"
   '' + lib.optionalString useLLVM ''
-    export LLC="${lib.getBin llvmPackages.llvm}/bin/llc"
-    export OPT="${lib.getBin llvmPackages.llvm}/bin/opt"
+    export LLC="${lib.getBin buildTargetLlvmPackages.llvm}/bin/llc"
+    export OPT="${lib.getBin buildTargetLlvmPackages.llvm}/bin/opt"
   '' + lib.optionalString (useLLVM && stdenv.targetPlatform.isDarwin) ''
     # LLVM backend on Darwin needs clang: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/codegens.html#llvm-code-generator-fllvm
-    export CLANG="${llvmPackages.clang}/bin/${llvmPackages.clang.targetPrefix}clang"
+    export CLANG="${buildTargetLlvmPackages.clang}/bin/${buildTargetLlvmPackages.clang.targetPrefix}clang"
   '' + ''
 
     echo -n "${buildMK}" > mk/build.mk
diff --git a/pkgs/development/compilers/ghc/head.nix b/pkgs/development/compilers/ghc/head.nix
index 04b80727be65..9a5767446158 100644
--- a/pkgs/development/compilers/ghc/head.nix
+++ b/pkgs/development/compilers/ghc/head.nix
@@ -218,11 +218,11 @@ stdenv.mkDerivation (rec {
     export OTOOL="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}otool"
     export INSTALL_NAME_TOOL="${bintoolsFor.install_name_tool}/bin/${bintoolsFor.install_name_tool.targetPrefix}install_name_tool"
   '' + lib.optionalString useLLVM ''
-    export LLC="${lib.getBin llvmPackages.llvm}/bin/llc"
-    export OPT="${lib.getBin llvmPackages.llvm}/bin/opt"
+    export LLC="${lib.getBin buildTargetLlvmPackages.llvm}/bin/llc"
+    export OPT="${lib.getBin buildTargetLlvmPackages.llvm}/bin/opt"
   '' + lib.optionalString (useLLVM && stdenv.targetPlatform.isDarwin) ''
     # LLVM backend on Darwin needs clang: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/codegens.html#llvm-code-generator-fllvm
-    export CLANG="${llvmPackages.clang}/bin/${llvmPackages.clang.targetPrefix}clang"
+    export CLANG="${buildTargetLlvmPackages.clang}/bin/${buildTargetLlvmPackages.clang.targetPrefix}clang"
   '' + ''
 
     # otherwise haddock fails when generating the compiler docs