1 files changed, 6 insertions, 7 deletions
diff --git a/pkgs/development/libraries/libmsgpack/generic.nix b/pkgs/development/libraries/libmsgpack/generic.nix
index 889ef1347732..947960d23592 100644
--- a/pkgs/development/libraries/libmsgpack/generic.nix
+++ b/pkgs/development/libraries/libmsgpack/generic.nix
@@ -13,13 +13,12 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
-  crossAttrs = {
-  } // stdenv.lib.optionalAttrs (hostPlatform.libc == "msvcrt") {
-    cmakeFlags = [
-      "-DMSGPACK_BUILD_EXAMPLES=OFF"
-      "-DCMAKE_SYSTEM_NAME=Windows"
-    ];
-  };
+  cmakeFlags = []
+    ++ stdenv.lib.optional (stdenv.hostPlatform != stdenv.buildPlatform)
+                           "-DMSGPACK_BUILD_EXAMPLES=OFF"
+    ++ stdenv.lib.optional (hostPlatform.libc == "msvcrt")
+                           "-DCMAKE_SYSTEM_NAME=Windows"
+    ;
 
   meta = with stdenv.lib; {
     description = "MessagePack implementation for C and C++";