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-rw-r--r--nixpkgs/pkgs/development/libraries/isl/0.20.0.nix4
1 files changed, 4 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/isl/0.20.0.nix b/nixpkgs/pkgs/development/libraries/isl/0.20.0.nix
index c35588555a7f..c40b3d7be0b4 100644
--- a/nixpkgs/pkgs/development/libraries/isl/0.20.0.nix
+++ b/nixpkgs/pkgs/development/libraries/isl/0.20.0.nix
@@ -10,6 +10,10 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ gmp ];
 
+  configureFlags = [
+    "--with-gcc-arch=generic" # don't guess -march=/mtune=
+  ];
+
   enableParallelBuilding = true;
 
   meta = {