diff --git a/pkgs/development/compilers/llvm/10/llvm/default.nix b/pkgs/development/compilers/llvm/10/llvm/default.nix
index c09ec676e9ea..534d38e86663 100644
--- a/pkgs/development/compilers/llvm/10/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/10/llvm/default.nix
@@ -248,7 +248,7 @@ in stdenv.mkDerivation (rec {
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/11/llvm/default.nix b/pkgs/development/compilers/llvm/11/llvm/default.nix
index 01e6483ad640..423b08396666 100644
--- a/pkgs/development/compilers/llvm/11/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/11/llvm/default.nix
@@ -256,7 +256,7 @@ in stdenv.mkDerivation (rec {
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/12/llvm/default.nix b/pkgs/development/compilers/llvm/12/llvm/default.nix
index 97d8f27672e3..3263c4ddaf35 100644
--- a/pkgs/development/compilers/llvm/12/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/12/llvm/default.nix
@@ -244,7 +244,7 @@ in stdenv.mkDerivation (rec {
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/13/llvm/default.nix b/pkgs/development/compilers/llvm/13/llvm/default.nix
index 2a7c1c1867cb..1e71cdd89c6c 100644
--- a/pkgs/development/compilers/llvm/13/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/13/llvm/default.nix
@@ -206,7 +206,7 @@ in stdenv.mkDerivation (rec {
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/14/llvm/default.nix b/pkgs/development/compilers/llvm/14/llvm/default.nix
index 6eec4c563f9c..eab49d326ad4 100644
--- a/pkgs/development/compilers/llvm/14/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/14/llvm/default.nix
@@ -205,7 +205,7 @@ in stdenv.mkDerivation (rec {
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/15/llvm/default.nix b/pkgs/development/compilers/llvm/15/llvm/default.nix
index 0b9e83259b2c..4f17678ba14f 100644
--- a/pkgs/development/compilers/llvm/15/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/15/llvm/default.nix
@@ -343,7 +343,7 @@ in stdenv.mkDerivation (rec {
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/16/llvm/default.nix b/pkgs/development/compilers/llvm/16/llvm/default.nix
index a6faf9fd635d..73fb6a785413 100644
--- a/pkgs/development/compilers/llvm/16/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/16/llvm/default.nix
@@ -331,7 +331,7 @@ in
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/17/llvm/default.nix b/pkgs/development/compilers/llvm/17/llvm/default.nix
index b38fef333135..627679ce812f 100644
--- a/pkgs/development/compilers/llvm/17/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/17/llvm/default.nix
@@ -330,7 +330,7 @@ stdenv.mkDerivation (rec {
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/8/llvm/default.nix b/pkgs/development/compilers/llvm/8/llvm/default.nix
index 7cef04347429..c2f924331098 100644
--- a/pkgs/development/compilers/llvm/8/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/8/llvm/default.nix
@@ -222,7 +222,7 @@ in stdenv.mkDerivation (rec {
   ] ++ optionals (isDarwin) [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/9/llvm/default.nix b/pkgs/development/compilers/llvm/9/llvm/default.nix
index 75c786855973..c0ef7801c348 100644
--- a/pkgs/development/compilers/llvm/9/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/9/llvm/default.nix
@@ -237,7 +237,7 @@ in stdenv.mkDerivation (rec {
   ] ++ optionals (isDarwin) [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (
diff --git a/pkgs/development/compilers/llvm/git/llvm/default.nix b/pkgs/development/compilers/llvm/git/llvm/default.nix
index 36edfee8a091..a6e9f9289d03 100644
--- a/pkgs/development/compilers/llvm/git/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/git/llvm/default.nix
@@ -329,7 +329,7 @@ stdenv.mkDerivation (rec {
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (