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-rw-r--r--pkgs/build-support/cc-wrapper/default.nix4
1 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/build-support/cc-wrapper/default.nix b/pkgs/build-support/cc-wrapper/default.nix
index f05b9fb2255..9569c6e78c8 100644
--- a/pkgs/build-support/cc-wrapper/default.nix
+++ b/pkgs/build-support/cc-wrapper/default.nix
@@ -45,9 +45,9 @@ let
   # The wrapper scripts use 'cat' and 'grep', so we may need coreutils.
   coreutils_bin = if nativeTools then "" else getBin coreutils;
 
-  default_cxx_stdlib_compile = if (targetPlatform.isLinux && !(cc.isGNU or false) && !nativeTools && cc ? gcc) then
+  default_cxx_stdlib_compile = if (targetPlatform.isLinux && !(cc.isGNU or false) && !nativeTools && cc ? gcc) && !(targetPlatform.useLLVM or false) then
     "-isystem $(echo -n ${cc.gcc}/include/c++/*) -isystem $(echo -n ${cc.gcc}/include/c++/*)/$(${cc.gcc}/bin/gcc -dumpmachine)"
-  else if targetPlatform.isDarwin && (libcxx != null) && (cc.isClang or false) then
+  else if targetPlatform.isDarwin && (libcxx != null) && (cc.isClang or false) && !(targetPlatform.useLLVM or false) then
     "-isystem ${libcxx}/include/c++/v1"
   else "";