diff --git a/SCsub b/SCsub
index 0781ea2..ee377e6 100644
--- a/SCsub
+++ b/SCsub
@@ -50,49 +50,57 @@ sources = [
     "mlpp/uni_lin_reg/uni_lin_reg.cpp",
     "mlpp/utilities/utilities.cpp",
     "mlpp/wgan/wgan.cpp",
-
-    "mlpp/wgan/wgan_old.cpp",
-    "mlpp/output_layer/output_layer_old.cpp",
-    "mlpp/multi_output_layer/multi_output_layer_old.cpp",
-    "mlpp/hidden_layer/hidden_layer_old.cpp",
-    "mlpp/mlp/mlp_old.cpp",
-    "mlpp/pca/pca_old.cpp",
-    "mlpp/uni_lin_reg/uni_lin_reg_old.cpp",
-    "mlpp/outlier_finder/outlier_finder_old.cpp",
-    "mlpp/probit_reg/probit_reg_old.cpp",
-    "mlpp/svc/svc_old.cpp",
-    "mlpp/softmax_reg/softmax_reg_old.cpp",
-    "mlpp/auto_encoder/auto_encoder_old.cpp",
-    "mlpp/tanh_reg/tanh_reg_old.cpp",
-    "mlpp/softmax_net/softmax_net_old.cpp",
-    "mlpp/multinomial_nb/multinomial_nb_old.cpp",
-    "mlpp/mann/mann_old.cpp",
-    "mlpp/log_reg/log_reg_old.cpp",
-    "mlpp/lin_reg/lin_reg_old.cpp",
-    "mlpp/gaussian_nb/gaussian_nb_old.cpp",
-    "mlpp/gan/gan_old.cpp",
-    "mlpp/exp_reg/exp_reg_old.cpp",
-    "mlpp/dual_svc/dual_svc_old.cpp",
-    "mlpp/c_log_log_reg/c_log_log_reg_old.cpp",
-    "mlpp/bernoulli_nb/bernoulli_nb_old.cpp",
-    "mlpp/ann/ann_old.cpp",
-    "mlpp/numerical_analysis/numerical_analysis_old.cpp",
-    "mlpp/regularization/reg_old.cpp",
-    "mlpp/gauss_markov_checker/gauss_markov_checker_old.cpp",
-    "mlpp/utilities/utilities_old.cpp",
-    "mlpp/transforms/transforms_old.cpp",
-    "mlpp/stat/stat_old.cpp",
-    "mlpp/lin_alg/lin_alg_old.cpp",
-    "mlpp/hypothesis_testing/hypothesis_testing_old.cpp",
-    "mlpp/data/data_old.cpp",
-    "mlpp/cost/cost_old.cpp",
-    "mlpp/convolutions/convolutions_old.cpp",
-    "mlpp/activation/activation_old.cpp",
-
-    "test/mlpp_tests.cpp",
-    "test/mlpp_matrix_tests.cpp",
 ]
 
+if env.pmlpp_build_tests:
+    sources += [
+        "test/mlpp_tests.cpp",
+        "test/mlpp_matrix_tests.cpp",
+    ]
+
+if env.pmlpp_build_old_classes:
+    print("asdasdasd")
+    sources += [
+        "mlpp/wgan/wgan_old.cpp",
+        "mlpp/output_layer/output_layer_old.cpp",
+        "mlpp/multi_output_layer/multi_output_layer_old.cpp",
+        "mlpp/hidden_layer/hidden_layer_old.cpp",
+        "mlpp/mlp/mlp_old.cpp",
+        "mlpp/pca/pca_old.cpp",
+        "mlpp/uni_lin_reg/uni_lin_reg_old.cpp",
+        "mlpp/outlier_finder/outlier_finder_old.cpp",
+        "mlpp/probit_reg/probit_reg_old.cpp",
+        "mlpp/svc/svc_old.cpp",
+        "mlpp/softmax_reg/softmax_reg_old.cpp",
+        "mlpp/auto_encoder/auto_encoder_old.cpp",
+        "mlpp/tanh_reg/tanh_reg_old.cpp",
+        "mlpp/softmax_net/softmax_net_old.cpp",
+        "mlpp/multinomial_nb/multinomial_nb_old.cpp",
+        "mlpp/mann/mann_old.cpp",
+        "mlpp/log_reg/log_reg_old.cpp",
+        "mlpp/lin_reg/lin_reg_old.cpp",
+        "mlpp/gaussian_nb/gaussian_nb_old.cpp",
+        "mlpp/gan/gan_old.cpp",
+        "mlpp/exp_reg/exp_reg_old.cpp",
+        "mlpp/dual_svc/dual_svc_old.cpp",
+        "mlpp/c_log_log_reg/c_log_log_reg_old.cpp",
+        "mlpp/bernoulli_nb/bernoulli_nb_old.cpp",
+        "mlpp/ann/ann_old.cpp",
+        "mlpp/numerical_analysis/numerical_analysis_old.cpp",
+        "mlpp/regularization/reg_old.cpp",
+        "mlpp/gauss_markov_checker/gauss_markov_checker_old.cpp",
+        "mlpp/utilities/utilities_old.cpp",
+        "mlpp/transforms/transforms_old.cpp",
+        "mlpp/stat/stat_old.cpp",
+        "mlpp/lin_alg/lin_alg_old.cpp",
+        "mlpp/hypothesis_testing/hypothesis_testing_old.cpp",
+        "mlpp/data/data_old.cpp",
+        "mlpp/cost/cost_old.cpp",
+        "mlpp/convolutions/convolutions_old.cpp",
+        "mlpp/activation/activation_old.cpp",
+    ]
+
+
 
 module_env.add_source_files(env.modules_sources, sources)
 
diff --git a/config.py b/config.py
index 23e9930..fceefb1 100644
--- a/config.py
+++ b/config.py
@@ -2,7 +2,8 @@ def can_build(env, platform):
     return True
 
 def configure(env):
-    pass
+    env.pmlpp_build_old_classes = True
+    env.pmlpp_build_tests = True
 
 def get_doc_classes():
     return [