diff --git a/Min_annulus_d/Makefile.settings b/Min_annulus_d/Makefile.settings
deleted file mode 100644
index 20138b4fc15..00000000000
--- a/Min_annulus_d/Makefile.settings
+++ /dev/null
@@ -1,8 +0,0 @@
-MAKE_WEB_DIR := web
-MAKE_DOC_DIR := doc_ps
-MAKE_INC_DIR := include/CGAL
-
-MAKE_INC_PATH := ../Optimisation_basic/include:../_QP_solver/include:${MAKE_INC_PATH}
-
-MAKE_FIL_MOD := u=rw,g=r,o=
-MAKE_DIR_MOD := u=rwx,g=rx+s,o=
diff --git a/Min_circle_2/Makefile.settings b/Min_circle_2/Makefile.settings
deleted file mode 100644
index c8e412a8649..00000000000
--- a/Min_circle_2/Makefile.settings
+++ /dev/null
@@ -1,8 +0,0 @@
-MAKE_WEB_DIR := web
-MAKE_DOC_DIR := doc_ps
-MAKE_INC_DIR := include/CGAL
-
-MAKE_IMP_PATH := examples demo
-
-MAKE_FIL_MOD := u=rw,g=r,o=
-MAKE_DIR_MOD := u=rwx,g=rx+s,o=
diff --git a/Min_ellipse_2/Makefile.settings b/Min_ellipse_2/Makefile.settings
deleted file mode 100644
index c8e412a8649..00000000000
--- a/Min_ellipse_2/Makefile.settings
+++ /dev/null
@@ -1,8 +0,0 @@
-MAKE_WEB_DIR := web
-MAKE_DOC_DIR := doc_ps
-MAKE_INC_DIR := include/CGAL
-
-MAKE_IMP_PATH := examples demo
-
-MAKE_FIL_MOD := u=rw,g=r,o=
-MAKE_DIR_MOD := u=rwx,g=rx+s,o=
diff --git a/Min_sphere_d_new/Makefile.settings b/Min_sphere_d_new/Makefile.settings
deleted file mode 100644
index 20138b4fc15..00000000000
--- a/Min_sphere_d_new/Makefile.settings
+++ /dev/null
@@ -1,8 +0,0 @@
-MAKE_WEB_DIR := web
-MAKE_DOC_DIR := doc_ps
-MAKE_INC_DIR := include/CGAL
-
-MAKE_INC_PATH := ../Optimisation_basic/include:../_QP_solver/include:${MAKE_INC_PATH}
-
-MAKE_FIL_MOD := u=rw,g=r,o=
-MAKE_DIR_MOD := u=rwx,g=rx+s,o=
diff --git a/Optimisation_basic/Makefile.settings b/Optimisation_basic/Makefile.settings
deleted file mode 100644
index 3f795a3502c..00000000000
--- a/Optimisation_basic/Makefile.settings
+++ /dev/null
@@ -1,6 +0,0 @@
-MAKE_WEB_DIR := web
-MAKE_DOC_DIR := doc_ps
-MAKE_INC_DIR := include/CGAL
-
-MAKE_FIL_MOD := u=rw,g=r,o=
-MAKE_DIR_MOD := u=rwx,g=rx+s,o=
diff --git a/Optimisation_doc/Makefile.settings b/Optimisation_doc/Makefile.settings
deleted file mode 100644
index dc8e3c2c616..00000000000
--- a/Optimisation_doc/Makefile.settings
+++ /dev/null
@@ -1,3 +0,0 @@
-MAKE_WEB_DIR := 
-
-MAKE_IMP_PATH := .
\ No newline at end of file
diff --git a/Polytope_distance_d/Makefile.settings b/Polytope_distance_d/Makefile.settings
deleted file mode 100644
index 20138b4fc15..00000000000
--- a/Polytope_distance_d/Makefile.settings
+++ /dev/null
@@ -1,8 +0,0 @@
-MAKE_WEB_DIR := web
-MAKE_DOC_DIR := doc_ps
-MAKE_INC_DIR := include/CGAL
-
-MAKE_INC_PATH := ../Optimisation_basic/include:../_QP_solver/include:${MAKE_INC_PATH}
-
-MAKE_FIL_MOD := u=rw,g=r,o=
-MAKE_DIR_MOD := u=rwx,g=rx+s,o=
diff --git a/Random_numbers/Makefile.settings b/Random_numbers/Makefile.settings
deleted file mode 100644
index 3f795a3502c..00000000000
--- a/Random_numbers/Makefile.settings
+++ /dev/null
@@ -1,6 +0,0 @@
-MAKE_WEB_DIR := web
-MAKE_DOC_DIR := doc_ps
-MAKE_INC_DIR := include/CGAL
-
-MAKE_FIL_MOD := u=rw,g=r,o=
-MAKE_DIR_MOD := u=rwx,g=rx+s,o=