ceres-solver: clean up cmake configuration (#42661)

No need to explicitely set cmakeFlags, specifying the eigen library in the
build inputs is enough.

1 files changed, 1 insertions, 7 deletions

diff --git a/pkgs/development/libraries/ceres-solver/default.nix b/pkgs/development/libraries/ceres-solver/default.nix
index 1e2017ef0e7f..432e49c4354f 100644
--- a/pkgs/development/libraries/ceres-solver/default.nix
+++ b/pkgs/development/libraries/ceres-solver/default.nix
@@ -20,19 +20,13 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ cmake ];
-  buildInputs = [ glog ]
+  buildInputs = [ eigen glog ]
     ++ stdenv.lib.optional (google-gflags != null) google-gflags;
 
-  inherit eigen;
-
   doCheck = runTests;
 
   checkTarget = "test";
 
-  cmakeFlags = "
-    -DEIGEN_INCLUDE_DIR=${eigen}/include/eigen3
-  ";
-
   meta = with stdenv.lib; {
     description = "C++ library for modeling and solving large, complicated optimization problems";
     license = licenses.bsd3;