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-rw-r--r--pkgs/stdenv/generic/make-derivation.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/stdenv/generic/make-derivation.nix b/pkgs/stdenv/generic/make-derivation.nix
index be79e7626c5..a11b280b047 100644
--- a/pkgs/stdenv/generic/make-derivation.nix
+++ b/pkgs/stdenv/generic/make-derivation.nix
@@ -246,7 +246,7 @@ in rec {
             (/**/ if lib.isString cmakeFlags then [cmakeFlags]
              else if cmakeFlags == null      then []
              else                                     cmakeFlags)
-          ++ lib.optional (stdenv.hostPlatform.uname.system != null) "-DCMAKE_SYSTEM_NAME=${stdenv.hostPlatform.uname.system}"
+          ++ [ "-DCMAKE_SYSTEM_NAME=${lib.findFirst lib.isString "Generic" [ stdenv.hostPlatform.uname.system ]}" ]
           ++ lib.optional (stdenv.hostPlatform.uname.processor != null) "-DCMAKE_SYSTEM_PROCESSOR=${stdenv.hostPlatform.uname.processor}"
           ++ lib.optional (stdenv.hostPlatform.uname.release != null) "-DCMAKE_SYSTEM_VERSION=${stdenv.hostPlatform.release}"
           ++ lib.optional (stdenv.buildPlatform.uname.system != null) "-DCMAKE_HOST_SYSTEM_NAME=${stdenv.buildPlatform.uname.system}"