diff --git a/cuBQL/builder/cuda/builder_common.h b/cuBQL/builder/cuda/builder_common.h
index 47e0ea4..27d50df 100644
--- a/cuBQL/builder/cuda/builder_common.h
+++ b/cuBQL/builder/cuda/builder_common.h
@@ -159,32 +159,34 @@ namespace cuBQL {
       inline __device__ box_t make_box() const;
 
       inline __device__ scalar_t get_lower(int dim) const {
-        if (box_t::numDims>4) 
+        if constexpr (box_t::numDims>4)
           return decode<scalar_t>(lower[dim]);
-        else if (box_t::numDims==4) {
+        else if constexpr (box_t::numDims==4) {
           return decode<scalar_t>(dim>1
                                   ?((dim>2)?lower[3]:lower[2])
                                   :((dim  )?lower[1]:lower[0]));
-        } else if (box_t::numDims==3) {
+        } else if constexpr (box_t::numDims==3) {
           return decode<scalar_t>(dim>1
                                   ?lower[2]
                                   :((dim  )?lower[1]:lower[0]));
-        } else
+        } else {
           return decode<scalar_t>(lower[dim]);
+        }
       }
       inline __device__ scalar_t get_upper(int dim) const {
-        if (box_t::numDims>4) 
+        if constexpr (box_t::numDims>4)
           return decode<scalar_t>(upper[dim]);
-        else if (box_t::numDims==4) {
+        else if constexpr (box_t::numDims==4) {
           return decode<scalar_t>(dim>1
                                   ?((dim>2)?upper[3]:upper[2])
                                   :((dim  )?upper[1]:upper[0]));
-        } else if (box_t::numDims==3)
+        } else if constexpr (box_t::numDims==3) {
           return decode<scalar_t>(dim>1
                                   ?upper[2]
                                   :((dim  )?upper[1]:upper[0]));
-        else
+        } else {
           return decode<scalar_t>(upper[dim]);
+        }
       }
       
       typename int_type_of<scalar_t>::type lower[box_t::numDims];
diff --git a/cuBQL/builder/cuda/elh_builder.h b/cuBQL/builder/cuda/elh_builder.h
index caa1d07..7dc44db 100644
--- a/cuBQL/builder/cuda/elh_builder.h
+++ b/cuBQL/builder/cuda/elh_builder.h
@@ -85,7 +85,7 @@ namespace cuBQL {
     {
       float bestCost = CUBQL_INF;
 
-      float rLengths[(int)elh.numBins];
+      float rLengths[(int)ELHBins<T,D>::numBins];
       for (int d=0;d<D;d++) {
         box_t<T,D> box; box.set_empty();
         int   rCount = 0;
diff --git a/cuBQL/builder/cuda/radix.h b/cuBQL/builder/cuda/radix.h
index 825af91..1a4c74a 100644
--- a/cuBQL/builder/cuda/radix.h
+++ b/cuBQL/builder/cuda/radix.h
@@ -585,7 +585,7 @@ namespace cuBQL {
     {
       const int makeLeafThreshold
         = (buildConfig.makeLeafThreshold > 0)
-        ? min(buildConfig.makeLeafThreshold,buildConfig.maxAllowedLeafSize)
+        ? std::min(buildConfig.makeLeafThreshold,buildConfig.maxAllowedLeafSize)
         : 1;
 
       // ==================================================================
diff --git a/cuBQL/builder/cuda/rebinMortonBuilder.h b/cuBQL/builder/cuda/rebinMortonBuilder.h
index 00fc6c2..424cec6 100644
--- a/cuBQL/builder/cuda/rebinMortonBuilder.h
+++ b/cuBQL/builder/cuda/rebinMortonBuilder.h
@@ -1161,7 +1161,7 @@ namespace cuBQL {
       using atomic_box_t = typename ctx_t::atomic_box_t;
       const int makeLeafThreshold
         = (buildConfig.makeLeafThreshold > 0)
-        ? min(buildConfig.makeLeafThreshold,buildConfig.maxAllowedLeafSize)
+        ? std::min(buildConfig.makeLeafThreshold,buildConfig.maxAllowedLeafSize)
         : 1;
 
       // ==================================================================
diff --git a/cuBQL/builder/cuda/sah_builder.h b/cuBQL/builder/cuda/sah_builder.h
index 5374615..423d6fb 100644
--- a/cuBQL/builder/cuda/sah_builder.h
+++ b/cuBQL/builder/cuda/sah_builder.h
@@ -65,7 +65,7 @@ namespace cuBQL {
     {
       float bestCost = CUBQL_INF;
       
-      float rAreas[sah.numBins];
+      float rAreas[SAHBins<box_t>::numBins];
       for (int d=0;d<3;d++) {
         box_t box; box.set_empty();
         int   rCount = 0;
diff --git a/cuBQL/math/math.h b/cuBQL/math/math.h
index 27a7d5b..aee372e 100644
--- a/cuBQL/math/math.h
+++ b/cuBQL/math/math.h
@@ -28,8 +28,7 @@ namespace cuBQL {
 # define CUBQL_INF std::numeric_limits<float>::infinity()
 #endif
 
-#ifdef __CUDA_ARCH__
-#else
+#if !defined(__CUDACC__)
     inline float __int_as_float(int i) { return (const float &)i; }
     inline int __float_as_int(float f) { return (const int &)f; }
 #endif