diff --git a/build.sh b/build.sh
index 2763549e0c53d43cb6603655e9d9c0d7979688f9..ab8c800c35ef2b57a325c708587969ce489e41d6 100755
--- a/build.sh
+++ b/build.sh
@@ -134,7 +134,7 @@ check_compiler_version() {
     exit 1
   fi
 
-  local version_str=$("$compiler_path" --version | grep -E -m1 '(gcc|g\+\+)' | head -1)
+  local version_str=$("$compiler_path" --version | grep -E -m1 '(gcc|g\+\+|clang|clang\+\+)' | head -1)
   local version_num=$(echo "$version_str" | 
     grep -oP '(?<= )\d+\.\d+(?=\.)?' | 
     head -1)
diff --git a/src/database/data/design/db_layout/IdbLayer.h b/src/database/data/design/db_layout/IdbLayer.h
index 00239857ab94dfd751f66b660261336fbc426d7a..ee803ca2e89f0aecd9ae29b6607eaba701d923a9 100644
--- a/src/database/data/design/db_layout/IdbLayer.h
+++ b/src/database/data/design/db_layout/IdbLayer.h
@@ -766,9 +766,13 @@ class IdbLayerImplant : public IdbLayer
   ////getter
   int32_t get_min_spacing()
   {
-    if (_spacing_list->get_num() == 1) {
-      return _spacing_list->get_min_spacing(0)->get_min_spacing();
+    int32_t min_spacing = INT32_MAX;
+    int32_t n = _spacing_list->get_num();
+    for (size_t i=0; i<n; ++i)
+    {
+      min_spacing = std::min(_spacing_list->get_min_spacing(i)->get_min_spacing(), min_spacing);
     }
+    return min_spacing;
   }
   IdbLayerImplantSpacingList* get_min_spacing_list() { return _spacing_list; }
   int32_t get_min_width() { return _min_width; }
diff --git a/src/operation/iRT/source/toolkit/logger/Logger.hpp b/src/operation/iRT/source/toolkit/logger/Logger.hpp
index ac0d8747900726b59a1d52f0cbad6ee955d828ec..834fa136973ca81aaacbf5da3a5e804436bdfaf3 100644
--- a/src/operation/iRT/source/toolkit/logger/Logger.hpp
+++ b/src/operation/iRT/source/toolkit/logger/Logger.hpp
@@ -68,7 +68,7 @@ class Logger
   }
 
   template <typename T, typename... Args>
-  void error(Loc location, const T& value, const Args&... args)
+  [[noreturn]] void error(Loc location, const T& value, const Args&... args)
   {
     printLog(LogLevel::kError, location, value, args...);
     closeLogFileStream();
diff --git a/src/third_party/salt/base/rsa.h b/src/third_party/salt/base/rsa.h
index 172829fa7a9c33a0f92609d51c784e182537238f..41dd6222bedb878deff70d2157f13d852711ea0a 100644
--- a/src/third_party/salt/base/rsa.h
+++ b/src/third_party/salt/base/rsa.h
@@ -37,7 +37,7 @@ class InnerNode
 class CompInnerNode
 {
  public:
-  bool operator()(const InnerNode* a, const InnerNode* b)
+  bool operator()(const InnerNode* a, const InnerNode* b) const
   {
     return a->dist > b->dist ||  // prefer fathest one
            (a->dist == b->dist
@@ -88,4 +88,4 @@ class RsaBuilder : public RSABase
   void PrintOuterNodes();
 };
 
-}  // namespace salt
\ No newline at end of file
+}  // namespace salt
diff --git a/src/vectorization/src/feature/vec_feature_drc.cpp b/src/vectorization/src/feature/vec_feature_drc.cpp
index 967d796899e85e98995326867852e620e3ce53bc..5a705e930a32dfeee8950846198bcde37b14eb0a 100644
--- a/src/vectorization/src/feature/vec_feature_drc.cpp
+++ b/src/vectorization/src/feature/vec_feature_drc.cpp
@@ -71,7 +71,9 @@ void VecFeatureDrc::markNodes()
 
   for (auto& [rule, drc_list_map] : detail_drc_map) {
     for (auto& [layer_name, drc_spot_list] : drc_list_map) {
-#pragma omp parallel for schedule(dynamic)
+#if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
+      #pragma omp parallel for schedule(dynamic)
+#endif
       for (int i = 0; i < (int) drc_spot_list.size(); ++i) {
         /// set to node if node data exist
         auto& drc_spot = drc_spot_list[i];
@@ -291,4 +293,4 @@ void VecFeatureDrc::markNets()
   LOG_INFO << "Vectorization mark net drc end...";
 }
 
-}  // namespace ivec
\ No newline at end of file
+}  // namespace ivec
diff --git a/src/vectorization/src/layout/data_manager/vec_wire_pattern.cc b/src/vectorization/src/layout/data_manager/vec_wire_pattern.cc
index 02484af5b29fb138bb6c19f06b9514c591158e37..bbdd366b1ac6ffa902613d8105c34e07daea2914 100644
--- a/src/vectorization/src/layout/data_manager/vec_wire_pattern.cc
+++ b/src/vectorization/src/layout/data_manager/vec_wire_pattern.cc
@@ -85,11 +85,11 @@ std::vector<Point> VecWirePatternGenerator::getPointList(VecNetWire& wire)
   auto& path = wire.get_paths();
   std::vector<Point> points;
   for (auto& [start, end] : path) {
-    auto start_point = Point{start->get_x(), start->get_y(), start->get_layer_id()};
+    auto start_point = Point{static_cast<int>(start->get_x()), static_cast<int>(start->get_y()), start->get_layer_id()};
     points.push_back(start_point);
   }
   auto end = path.back().second;
-  points.push_back(Point{end->get_x(), end->get_y(), end->get_layer_id()});
+  points.push_back(Point{static_cast<int>(end->get_x()), static_cast<int>(end->get_y()), end->get_layer_id()});
   return points;
 }
 
@@ -160,4 +160,4 @@ VecWirePatternSequence VecWirePatternGenerator::calcPattern(const std::vector<Po
   return pattern;
 }
 
-}  // namespace ivec
\ No newline at end of file
+}  // namespace ivec