1 files changed, 6 insertions, 2 deletions
diff --git a/nixpkgs/pkgs/applications/science/math/gfan/default.nix b/nixpkgs/pkgs/applications/science/math/gfan/default.nix
index adac92f376c8..7e2a4625d301 100644
--- a/nixpkgs/pkgs/applications/science/math/gfan/default.nix
+++ b/nixpkgs/pkgs/applications/science/math/gfan/default.nix
@@ -8,11 +8,15 @@ stdenv.mkDerivation rec {
     sha256 = "02pihqb1lb76a0xbfwjzs1cd6ay3ldfxsm8dvsbl6qs3vkjxax56";
   };
 
-  patchPhase = stdenv.lib.optionalString stdenv.cc.isClang ''
+  patches = [
+    ./gfan-0.6.2-cddlib-prefix.patch
+  ];
+
+  postPatch = stdenv.lib.optionalString stdenv.cc.isClang ''
     substituteInPlace Makefile --replace "-fno-guess-branch-probability" ""
   '';
 
-  buildFlags = [ "CC=cc" "CXX=c++" "cddnoprefix=1" ];
+  buildFlags = [ "CC=cc" "CXX=c++" ];
   installFlags = [ ''PREFIX=$(out)'' ];
   buildInputs = [ gmp mpir cddlib ];