diff --git a/libs/canvas/test/interactive/constraint_test.cc b/libs/canvas/test/interactive/constraint_test.cc
index cc62d14894..b026da3934 100644
--- a/libs/canvas/test/interactive/constraint_test.cc
+++ b/libs/canvas/test/interactive/constraint_test.cc
@@ -19,10 +19,6 @@ using namespace Gtk;
 using std::cerr;
 using std::endl;
 
-#ifdef PLATFORM_WINDOWS
-#define srandom() srand()
-#endif
-
 int
 main (int argc, char* argv[])
 {
@@ -36,8 +32,6 @@ main (int argc, char* argv[])
 
 	c->set_background_color (0xffffffff);
 
-	srandom (time ((time_t *) 0));
-
 	// cview.set_size_request (100, 100);
 
 	win.add (cview);
diff --git a/libs/canvas/test/interactive/constraint_test2.cc b/libs/canvas/test/interactive/constraint_test2.cc
index 8070e70499..014b543bd9 100644
--- a/libs/canvas/test/interactive/constraint_test2.cc
+++ b/libs/canvas/test/interactive/constraint_test2.cc
@@ -21,10 +21,6 @@ using namespace Gtk;
 using std::cerr;
 using std::endl;
 
-#ifdef PLATFORM_WINDOWS
-#define srandom() srand()
-#endif
-
 #define SQUARED 16
 
  struct Column {
@@ -94,8 +90,6 @@ main (int argc, char* argv[])
 
 	c->set_background_color (0xffffffff);
 
-	srandom (time ((time_t *) 0));
-
 	// cview.set_size_request (100, 100);
 
 	win.add (cview);
diff --git a/libs/canvas/test/interactive/constraint_test3.cc b/libs/canvas/test/interactive/constraint_test3.cc
index 5f38da3896..9d17bc5447 100644
--- a/libs/canvas/test/interactive/constraint_test3.cc
+++ b/libs/canvas/test/interactive/constraint_test3.cc
@@ -19,10 +19,6 @@ using namespace Gtk;
 using std::cerr;
 using std::endl;
 
-#ifdef PLATFORM_WINDOWS
-#define srandom() srand()
-#endif
-
 int
 main (int argc, char* argv[])
 {
@@ -36,8 +32,6 @@ main (int argc, char* argv[])
 
 	c->set_background_color (0xffffffff);
 
-	srandom (time ((time_t *) 0));
-
 	cview.set_size_request (100, 100);
 
 	win.add (cview);
diff --git a/libs/canvas/test/interactive/constraint_test4.cc b/libs/canvas/test/interactive/constraint_test4.cc
index 94982bc135..ed326f45be 100644
--- a/libs/canvas/test/interactive/constraint_test4.cc
+++ b/libs/canvas/test/interactive/constraint_test4.cc
@@ -19,10 +19,6 @@ using namespace Gtk;
 using std::cerr;
 using std::endl;
 
-#ifdef PLATFORM_WINDOWS
-#define srandom() srand()
-#endif
-
 int
 main (int argc, char* argv[])
 {
@@ -36,8 +32,6 @@ main (int argc, char* argv[])
 
 	c->set_background_color (0xffffffff);
 
-	srandom (time ((time_t *) 0));
-
 	win.add (cview);
 
 	/* Make some items */