diff --git a/havana/havok/hk_math/math.inl b/havana/havok/hk_math/math.inl
index bed9503..3fcf6b8 100644
--- a/havana/havok/hk_math/math.inl
+++ b/havana/havok/hk_math/math.inl
@@ -27,7 +27,7 @@ inline hk_real hk_Math::floor( hk_real r ) { return hk_real(::floor(r)); }
 inline hk_real hk_Math::ceil( hk_real r) { return hk_real(::ceil(r)); }
 inline hk_real hk_Math::pow( hk_real r, hk_real p) { return hk_real(::pow(r,p)); }
 
-#elif _LINUX || __APPLE__ || BSD
+#elif _LINUX || __APPLE__ || PLATFORM_BSD
 
 namespace c_math
 {
diff --git a/ivp_intern/ivp_friction_gaps.cxx b/ivp_intern/ivp_friction_gaps.cxx
index 521d757..4c69778 100644
--- a/ivp_intern/ivp_friction_gaps.cxx
+++ b/ivp_intern/ivp_friction_gaps.cxx
@@ -14,7 +14,7 @@
 #include <ivp_friction_solver.hxx>
 #include <ivp_debug_manager.hxx> // bvecause of debug psi_synchrone
 
-#if !defined(WIN32) && !defined(PSXII) && !defined(GEKKO) && !defined(BSD)
+#if !defined(WIN32) && !defined(PSXII) && !defined(GEKKO) && !defined(PLATFORM_BSD)
 #	include <alloca.h>
 #endif
 
diff --git a/ivp_intern/ivp_sim_unit.cxx b/ivp_intern/ivp_sim_unit.cxx
index 74227bf..7203f85 100644
--- a/ivp_intern/ivp_sim_unit.cxx
+++ b/ivp_intern/ivp_sim_unit.cxx
@@ -2,7 +2,7 @@
 
 #include <ivp_physics.hxx>
 
-#if !defined(WIN32) && !defined(PSXII) && !defined(GEKKO) && !defined(BSD)
+#if !defined(WIN32) && !defined(PSXII) && !defined(GEKKO) && !defined(PLATFORM_BSD)
 #	include <alloca.h>
 #endif
 
diff --git a/ivp_utility/ivu_float.hxx b/ivp_utility/ivu_float.hxx
index 985a1d8..5624811 100644
--- a/ivp_utility/ivu_float.hxx
+++ b/ivp_utility/ivu_float.hxx
@@ -19,7 +19,7 @@
     #define IVP_EXP_FOR_ONE 0x7f
     inline int PFM_LD(float a){ return ((p_float_ieee *)&(a))->ln.exp - IVP_EXP_FOR_ONE; };
 #else
-#	if defined(LINUX) || defined(WIN32) || defined(OSX) || defined(BSD)
+#	if defined(LINUX) || defined(WIN32) || defined(OSX) || defined(PLATFORM_BSD)
 
 union p_double_ieee {
 	IVP_DOUBLE val;