Fix GCC warnings

src/V3EmitC.cpp

@@ -1251,8 +1251,9 @@ private:
 public:
     // CONSTRUCTORS
     explicit EmitVarTspSorter(const MTaskIdSet& mtaskIds)
-        : m_mtaskIds{mtaskIds}
-        , m_serial(++m_serialNext) {}  // Need () or GCC 4.8 false warning
+        : m_mtaskIds{mtaskIds} {
+        m_serial = ++m_serialNext;  // Cannot be ()/{} or GCC 4.8 false warning
+    }
     virtual ~EmitVarTspSorter() {}
     // METHODS
     virtual bool operator<(const TspStateBase& other) const override {

src/V3EmitV.cpp

@@ -704,7 +704,7 @@ class EmitVStreamVisitor : public EmitVBaseVisitor {
 
 public:
     EmitVStreamVisitor(AstNode* nodep, std::ostream& os)
-        : m_os{os} {
+        : m_os(os) {  // Need () or GCC 4.8 false warning
         iterate(nodep);
     }
     virtual ~EmitVStreamVisitor() override {}
@@ -743,7 +743,7 @@ public:
     int column() const { return m_column; }
     EmitVPrefixedFormatter(std::ostream& os, const string& prefix, int flWidth)
         : V3OutFormatter{"__STREAM", V3OutFormatter::LA_VERILOG}
-        , m_os{os}
+        , m_os(os)  // Need () or GCC 4.8 false warning
         , m_prefix{prefix}
         , m_flWidth{flWidth} {
         m_column = 0;

src/V3EmitXml.cpp

@@ -288,7 +288,7 @@ private:
 public:
     // CONSTRUCTORS
     ModuleFilesXmlVisitor(AstNetlist* nodep, std::ostream& os)
-        : m_os{os} {
+        : m_os(os) {  // Need () or GCC 4.8 false warning
         // Operate on whole netlist
         nodep->accept(*this);
         // Xml output
@@ -360,7 +360,7 @@ private:
 public:
     // CONSTRUCTORS
     HierCellsXmlVisitor(AstNetlist* nodep, std::ostream& os)
-        : m_os{os} {
+        : m_os(os) {  // Need () or GCC 4.8 false warning
         // Operate on whole netlist
         nodep->accept(*this);
     }

src/V3SplitVar.cpp

@@ -359,7 +359,7 @@ public:
                 iterateChildren(nodep);
             }
             explicit Visitor(RefsInModule& p)
-                : m_parent{p} {}
+                : m_parent(p) {}  // Need () or GCC 4.8 false warning
         } v(*this);
         v.iterate(nodep);
     }

src/V3StatsReport.cpp

@@ -180,7 +180,7 @@ public:
 
     // CONSTRUCTORS
     explicit StatsReport(std::ofstream* aofp)
-        : os{*aofp} {
+        : os(*aofp) {  // Need () or GCC 4.8 false warning
         header();
         sumit();
         stars();

src/V3Tristate.cpp

@@ -302,7 +302,7 @@ class TristatePinVisitor : public TristateBaseVisitor {
 public:
     // CONSTRUCTORS
     TristatePinVisitor(AstNode* nodep, TristateGraph& tgraph, bool lvalue)
-        : m_tgraph{tgraph}
+        : m_tgraph(tgraph)  // Need () or GCC 4.8 false warning
         , m_lvalue{lvalue} {
         iterate(nodep);
     }