Remove unused headers (#2389)

include/verilated.cpp

@@ -30,7 +30,6 @@
 #include <cctype>
 #include <cerrno>
 #include <sstream>
-#include <tgmath.h>
 #include <sys/stat.h>  // mkdir
 
 // clang-format off

include/verilated_fst_c.cpp

@@ -36,17 +36,12 @@
 #include "gtkwave/lz4.c"
 
 #include <algorithm>
-#include <cerrno>
-#include <ctime>
-#include <fcntl.h>
 #include <iterator>
 #include <sstream>
-#include <sys/stat.h>
 
 #if defined(_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
 # include <io.h>
 #else
-# include <stdint.h>
 # include <unistd.h>
 #endif
 

include/verilated_vcd_c.cpp

@@ -27,7 +27,6 @@
 #include <cerrno>
 #include <ctime>
 #include <fcntl.h>
-#include <sys/stat.h>
 
 #if defined(_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
 # include <io.h>
@@ -35,8 +34,6 @@
 # include <unistd.h>
 #endif
 
-#include "verilated_intrinsics.h"
-
 // SPDIFF_ON
 
 #ifndef O_LARGEFILE  // For example on WIN32

include/verilated_vpi.cpp

@@ -30,7 +30,6 @@
 #include <list>
 #include <map>
 #include <set>
-#include <sstream>
 
 //======================================================================
 // Internal constants

src/V3Assert.cpp

@@ -23,9 +23,6 @@
 #include "V3GraphDfa.h"
 #include "V3Stats.h"
 
-#include <cstdarg>
-#include <iomanip>
-
 //######################################################################
 // Assert class functions
 

src/V3AssertPre.cpp

@@ -23,9 +23,6 @@
 #include "V3Global.h"
 #include "V3AssertPre.h"
 
-#include <cstdarg>
-#include <iomanip>
-
 //######################################################################
 // Assert class functions
 

src/V3Ast.cpp

@@ -23,7 +23,6 @@
 #include "V3Broken.h"
 #include "V3String.h"
 
-#include <cstdarg>
 #include <iomanip>
 #include <memory>
 

src/V3AstNodes.cpp

@@ -24,7 +24,6 @@
 #include "V3PartitionGraph.h"  // Just for mtask dumping
 #include "V3EmitCBase.h"
 
-#include <cstdarg>
 #include <iomanip>
 #include <vector>
 

src/V3Begin.cpp

@@ -30,12 +30,9 @@
 
 #include "V3Global.h"
 #include "V3Begin.h"
-#include "V3Inst.h"
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
-#include <vector>
 
 //######################################################################
 

src/V3Branch.cpp

@@ -30,7 +30,6 @@
 #include "V3Branch.h"
 #include "V3Ast.h"
 
-#include <cstdarg>
 #include <map>
 
 //######################################################################

src/V3Broken.cpp

@@ -32,7 +32,6 @@
 #include "V3AstConstOnly.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include VL_INCLUDE_UNORDERED_MAP
 
 //######################################################################

src/V3CCtors.cpp

@@ -32,10 +32,7 @@
 #include "V3CCtors.h"
 
 #include <algorithm>
-#include <cmath>
-#include <cstdarg>
 #include <map>
-#include <vector>
 
 class V3CCtorsVisitor {
 private:

src/V3Case.cpp

@@ -43,7 +43,6 @@
 #include "V3Stats.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 #define CASE_OVERLAP_WIDTH 16  // Maximum width we can check for overlaps in
 #define CASE_BARF 999999  // Magic width when non-constant

src/V3Cast.cpp

@@ -45,7 +45,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 //######################################################################
 // Cast state, as a visitor of each AstNode

src/V3Cdc.cpp

@@ -33,12 +33,9 @@
 #include "V3File.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <deque>
 #include <iomanip>
-#include <list>
 #include <memory>
-#include <vector>
 
 #define CDC_WEIGHT_ASYNC 0x1000  // Weight for edges that feed async logic
 

src/V3Changed.cpp

@@ -35,8 +35,6 @@
 #include "V3EmitCBase.h"
 
 #include <algorithm>
-#include <cstdarg>
-#include <set>
 
 //######################################################################
 

src/V3Clean.cpp

@@ -31,7 +31,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 //######################################################################
 // Clean state, as a visitor of each AstNode

src/V3Clock.cpp

@@ -36,7 +36,6 @@
 #include "V3EmitCBase.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 //######################################################################
 // Clock state, as a visitor of each AstNode

src/V3Combine.cpp

@@ -40,7 +40,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <map>
 #include <vector>
 

src/V3Const.cpp

@@ -31,7 +31,6 @@
 #include "V3Simulate.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <map>
 
 //######################################################################

src/V3Coverage.cpp

@@ -31,7 +31,6 @@
 #include "V3Coverage.h"
 #include "V3Ast.h"
 
-#include <cstdarg>
 #include <map>
 
 //######################################################################

src/V3CoverageJoin.cpp

@@ -25,7 +25,6 @@
 #include "V3Hashed.h"
 #include "V3Stats.h"
 
-#include <cstdarg>
 #include <vector>
 
 //######################################################################

src/V3Dead.cpp

@@ -41,7 +41,6 @@
 #include "V3Dead.h"
 #include "V3Ast.h"
 
-#include <cstdarg>
 #include <map>
 #include <vector>
 

src/V3Delayed.cpp

@@ -57,7 +57,6 @@
 #include "V3Stats.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <deque>
 #include <map>
 

src/V3Depth.cpp

@@ -31,7 +31,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 //######################################################################
 

src/V3DepthBlock.cpp

@@ -29,7 +29,6 @@
 #include "V3EmitCBase.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 //######################################################################
 

src/V3Descope.cpp

@@ -30,7 +30,6 @@
 #include "V3Ast.h"
 #include "V3EmitCBase.h"
 
-#include <cstdarg>
 #include <map>
 
 //######################################################################

src/V3EmitC.cpp

@@ -26,8 +26,6 @@
 #include "V3TSP.h"
 
 #include <algorithm>
-#include <cmath>
-#include <cstdarg>
 #include <map>
 #include <vector>
 #include VL_INCLUDE_UNORDERED_SET

src/V3EmitCInlines.cpp

@@ -22,10 +22,7 @@
 #include "V3EmitCBase.h"
 #include "V3Stats.h"
 
-#include <cmath>
-#include <cstdarg>
 #include <map>
-#include <vector>
 
 //######################################################################
 

src/V3EmitCMain.cpp

@@ -22,10 +22,7 @@
 #include "V3EmitCBase.h"
 #include "V3EmitCMain.h"
 
-#include <cmath>
-#include <cstdarg>
 #include <map>
-#include <vector>
 
 //######################################################################
 

src/V3EmitCSyms.cpp

@@ -23,10 +23,7 @@
 #include "V3LanguageWords.h"
 
 #include <algorithm>
-#include <cmath>
-#include <cstdarg>
 #include <map>
-#include <set>
 #include <vector>
 
 //######################################################################

src/V3EmitV.cpp

@@ -22,8 +22,6 @@
 #include "V3EmitCBase.h"
 
 #include <algorithm>
-#include <cmath>
-#include <cstdarg>
 #include <map>
 #include <vector>
 

src/V3EmitXml.cpp

@@ -22,9 +22,6 @@
 #include "V3EmitXml.h"
 #include "V3EmitCBase.h"
 
-#include <algorithm>
-#include <cmath>
-#include <cstdarg>
 #include <map>
 #include <vector>
 

src/V3Error.cpp

@@ -23,8 +23,6 @@
 #endif
 // clang-format on
 
-#include <cstdarg>
-
 //======================================================================
 // Statics
 

src/V3Expand.cpp

@@ -33,7 +33,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 //######################################################################
 // Expand state, as a visitor of each AstNode

src/V3File.cpp

@@ -20,7 +20,6 @@
 #include "V3Global.h"
 #include "V3File.h"
 #include "V3Os.h"
-#include "V3PreShell.h"
 #include "V3String.h"
 #include "V3Ast.h"
 

src/V3FileLine.cpp

@@ -22,9 +22,7 @@
 #include "V3FileLine.h"
 #include "V3String.h"
 #ifndef _V3ERROR_NO_GLOBAL_
-# include "V3Ast.h"
 # include "V3Global.h"
-# include "V3Stats.h"
 # include "V3Config.h"
 # include "V3File.h"
 #endif
@@ -32,7 +30,6 @@
 // clang-format on
 
 #include <algorithm>
-#include <cstdarg>
 #include <iomanip>
 #include VL_INCLUDE_UNORDERED_SET
 

src/V3Gate.cpp

@@ -33,11 +33,8 @@
 #include "V3Hashed.h"
 
 #include <algorithm>
-#include <cstdarg>
-#include <iomanip>
 #include <list>
 #include <map>
-#include <vector>
 #include VL_INCLUDE_UNORDERED_SET
 
 typedef std::list<AstNodeVarRef*> GateVarRefList;

src/V3GenClk.cpp

@@ -26,8 +26,6 @@
 #include "V3GenClk.h"
 #include "V3Ast.h"
 
-#include <cstdarg>
-
 //######################################################################
 // GenClk state, as a visitor of each AstNode
 

src/V3Graph.cpp

@@ -21,7 +21,6 @@
 #include "V3File.h"
 #include "V3Graph.h"
 
-#include <cstdarg>
 #include <map>
 #include <memory>
 #include <vector>

src/V3GraphAcyc.cpp

@@ -21,7 +21,6 @@
 #include "V3Graph.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <list>
 #include <vector>
 

src/V3GraphAlg.cpp

@@ -21,7 +21,6 @@
 #include "V3GraphAlg.h"
 #include "V3GraphPathChecker.h"
 
-#include <cstdarg>
 #include <algorithm>
 #include <vector>
 #include <map>

src/V3GraphDfa.cpp

@@ -21,7 +21,6 @@
 #include "V3GraphDfa.h"
 #include "V3GraphAlg.h"
 
-#include <cstdarg>
 #include <map>
 #include <set>
 #include <stack>

src/V3GraphTest.cpp

@@ -21,8 +21,6 @@
 #include "V3Graph.h"
 #include "V3GraphDfa.h"
 
-#include <cstdarg>
-
 //######################################################################
 //######################################################################
 // Test class

src/V3Hashed.cpp

@@ -30,7 +30,6 @@
 #include "V3File.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <iomanip>
 #include <map>
 #include <memory>

src/V3Inline.cpp

@@ -35,7 +35,6 @@
 #include "V3String.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <vector>
 #include VL_INCLUDE_UNORDERED_SET
 

src/V3Inst.cpp

@@ -27,11 +27,9 @@
 #include "V3Global.h"
 #include "V3Inst.h"
 #include "V3Ast.h"
-#include "V3Changed.h"
 #include "V3Const.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 //######################################################################
 // Inst state, as a visitor of each AstNode

src/V3Life.cpp

@@ -32,7 +32,6 @@
 #include "V3Ast.h"
 #include "V3Const.h"
 
-#include <cstdarg>
 #include <map>
 #include <vector>
 

src/V3LifePost.cpp

@@ -34,7 +34,6 @@
 #include "V3Stats.h"
 #include "V3Ast.h"
 
-#include <cstdarg>
 #include <memory>  // for vl_unique_ptr -> auto_ptr or unique_ptr
 #include VL_INCLUDE_UNORDERED_MAP
 

src/V3LinkCells.cpp

@@ -34,7 +34,6 @@
 #include "V3Graph.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <map>
 #include <vector>
 #include VL_INCLUDE_UNORDERED_SET

src/V3LinkDot.cpp

@@ -71,7 +71,6 @@
 #include "V3String.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <map>
 #include <vector>
 

src/V3LinkInc.cpp

@@ -44,8 +44,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
-#include <vector>
 
 //######################################################################
 

src/V3LinkJump.cpp

@@ -37,7 +37,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <vector>
 
 //######################################################################

src/V3LinkLValue.cpp

@@ -25,10 +25,7 @@
 #include "V3LinkLValue.h"
 #include "V3Ast.h"
 
-#include <algorithm>
-#include <cstdarg>
 #include <map>
-#include <vector>
 
 //######################################################################
 // Link state, as a visitor of each AstNode

src/V3LinkLevel.cpp

@@ -27,7 +27,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <map>
 #include <vector>
 

src/V3LinkParse.cpp

@@ -27,7 +27,6 @@
 #include "V3Config.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <map>
 #include <set>
 #include <vector>

src/V3LinkResolve.cpp

@@ -33,9 +33,7 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <map>
-#include <vector>
 
 //######################################################################
 // Link state, as a visitor of each AstNode

src/V3Localize.cpp

@@ -30,7 +30,6 @@
 #include "V3Stats.h"
 #include "V3Ast.h"
 
-#include <cstdarg>
 #include <vector>
 
 //######################################################################

src/V3Name.cpp

@@ -25,12 +25,8 @@
 #include "V3Global.h"
 #include "V3Name.h"
 #include "V3Ast.h"
-#include "V3File.h"
 #include "V3LanguageWords.h"
 
-#include <algorithm>
-#include <cstdarg>
-
 //######################################################################
 // Name state, as a visitor of each AstNode
 

src/V3Number.cpp

@@ -24,8 +24,6 @@
 #include <algorithm>
 #include <cerrno>
 #include <cmath>
-#include <cstdarg>
-#include <iomanip>
 
 #define MAX_SPRINTF_DOUBLE_SIZE 1100  // Maximum characters with a sprintf %e/%f/%g (really 1079)
 

src/V3Order.cpp

@@ -94,7 +94,6 @@
 #include "V3OrderGraph.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <deque>
 #include <iomanip>
 #include <map>

src/V3Os.cpp

@@ -29,17 +29,13 @@
 #include "verilatedos.h"
 
 // Limited V3 headers here - this is a base class for Vlc etc
-#include "V3Global.h"
 #include "V3String.h"
 #include "V3Os.h"
 
 #include <cerrno>
-#include <climits>
 #include <cstdarg>
 #include <dirent.h>
-#include <fcntl.h>
 #include <fstream>
-#include <iomanip>
 #include <memory>
 #include <sys/stat.h>
 #include <sys/types.h>
@@ -54,7 +50,7 @@
 # include <thread>
 #else
 # include <sys/time.h>
-# include <sys/wait.h>
+# include <sys/wait.h> // Needed on FreeBSD for WIFEXITED
 # include <unistd.h>  // usleep
 #endif
 // clang-format on

src/V3Param.cpp

@@ -56,7 +56,6 @@
 #include "V3Unroll.h"
 #include "V3Hashed.h"
 
-#include <cstdarg>
 #include <deque>
 #include <map>
 #include <vector>

src/V3ParseImp.cpp

@@ -34,8 +34,6 @@
 #include "V3PreShell.h"
 #include "V3LanguageWords.h"
 
-#include <cstdarg>
-#include <fstream>
 #include <sstream>
 
 //======================================================================

src/V3ParseLex.cpp

@@ -17,12 +17,8 @@
 #include "config_build.h"
 #include "verilatedos.h"
 
-#include "V3Error.h"
-#include "V3Global.h"
-#include "V3File.h"
 #include "V3ParseImp.h"
 
-#include <cstdarg>
 #include <fstream>
 
 //======================================================================

src/V3Partition.cpp

@@ -20,7 +20,6 @@
 #include "V3Os.h"
 #include "V3File.h"
 #include "V3GraphAlg.h"
-#include "V3GraphPathChecker.h"
 #include "V3GraphStream.h"
 #include "V3InstrCount.h"
 #include "V3Partition.h"

src/V3PreProc.cpp

@@ -26,7 +26,6 @@
 #include "V3PreShell.h"
 #include "V3String.h"
 
-#include <cstdarg>
 #include <cstdlib>
 #include <fstream>
 #include <stack>

src/V3PreShell.cpp

@@ -25,10 +25,7 @@
 #include "V3Os.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <iostream>
-#include <list>
-#include <set>
 
 //######################################################################
 

src/V3Premit.cpp

@@ -32,8 +32,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
-#include <list>
 
 //######################################################################
 // Structure for global state

src/V3ProtectLib.cpp

@@ -20,7 +20,6 @@
 #include "V3Global.h"
 #include "V3String.h"
 #include "V3ProtectLib.h"
-#include "V3File.h"
 #include "V3Hashed.h"
 #include "V3Task.h"
 

src/V3Reloop.cpp

@@ -38,7 +38,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 #define RELOOP_MIN_ITERS 40  // Need at least this many loops to do this optimization
 

src/V3Scope.cpp

@@ -29,8 +29,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
-#include <iomanip>
 #include <map>
 #include VL_INCLUDE_UNORDERED_MAP
 #include VL_INCLUDE_UNORDERED_SET

src/V3Slice.cpp

@@ -42,8 +42,6 @@
 #include "V3Slice.h"
 #include "V3Ast.h"
 
-#include <cstdarg>
-
 //*************************************************************************
 
 class SliceVisitor : public AstNVisitor {

src/V3Split.cpp

@@ -87,7 +87,6 @@
 #include "V3Graph.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <map>
 #include <vector>
 #include VL_INCLUDE_UNORDERED_MAP

src/V3SplitAs.cpp

@@ -29,10 +29,7 @@
 #include "V3Stats.h"
 #include "V3Ast.h"
 
-#include <algorithm>
-#include <cstdarg>
 #include <map>
-#include <vector>
 
 //######################################################################
 

src/V3SplitVar.cpp

@@ -114,7 +114,6 @@
 #include "verilatedos.h"
 
 #include "V3Ast.h"
-#include "V3Const.h"
 #include "V3Global.h"
 #include "V3SplitVar.h"
 #include "V3Stats.h"

src/V3Stats.cpp

@@ -20,12 +20,10 @@
 #include "V3Global.h"
 #include "V3Stats.h"
 #include "V3Ast.h"
-#include "V3File.h"
 
 // This visitor does not edit nodes, and is called at error-exit, so should use constant iterators
 #include "V3AstConstOnly.h"
 
-#include <cstdarg>
 #include <iomanip>
 #include <map>
 

src/V3StatsReport.cpp

@@ -23,7 +23,6 @@
 #include "V3File.h"
 #include "V3Os.h"
 
-#include <cstdarg>
 #include <iomanip>
 #include <map>
 #include VL_INCLUDE_UNORDERED_MAP

src/V3Subst.cpp

@@ -27,12 +27,10 @@
 
 #include "V3Global.h"
 #include "V3Subst.h"
-#include "V3Const.h"
 #include "V3Stats.h"
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <vector>
 
 //######################################################################

src/V3TSP.cpp

@@ -28,17 +28,12 @@
 #include "V3Graph.h"
 #include "V3TSP.h"
 
-#include <cassert>
 #include <cmath>
-#include <fstream>
-#include <limits>
 #include <list>
-#include <map>
 #include <memory>
 #include <set>
 #include <sstream>
 #include <string>
-#include <utility>
 #include <vector>
 #include VL_INCLUDE_UNORDERED_SET
 #include VL_INCLUDE_UNORDERED_MAP

src/V3Table.cpp

@@ -31,7 +31,6 @@
 #include "V3Ast.h"
 
 #include <cmath>
-#include <cstdarg>
 #include <deque>
 
 //######################################################################

src/V3Task.cpp

@@ -29,13 +29,11 @@
 #include "V3Global.h"
 #include "V3Const.h"
 #include "V3Task.h"
-#include "V3Inst.h"
 #include "V3Ast.h"
 #include "V3EmitCBase.h"
 #include "V3Graph.h"
 #include "V3LinkLValue.h"
 
-#include <cstdarg>
 #include <map>
 
 //######################################################################

src/V3Tristate.cpp

@@ -60,14 +60,11 @@
 #include "V3Global.h"
 #include "V3Tristate.h"
 #include "V3Ast.h"
-#include "V3Const.h"
 #include "V3Stats.h"
 #include "V3Inst.h"
-#include "V3Stats.h"
 #include "V3Graph.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <map>
 
 //######################################################################

src/V3Undriven.cpp

@@ -32,7 +32,6 @@
 #include "V3Ast.h"
 
 #include <algorithm>
-#include <cstdarg>
 #include <vector>
 
 //######################################################################

src/V3Unknown.cpp

@@ -38,7 +38,6 @@
 #include "V3Stats.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 //######################################################################
 

src/V3Unroll.cpp

@@ -35,7 +35,6 @@
 #include "V3Simulate.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 //######################################################################
 // Unroll state, as a visitor of each AstNode

src/V3Waiver.cpp

@@ -19,7 +19,6 @@
 #include "V3Waiver.h"
 
 #include <memory>
-#include <fstream>
 #include <sstream>
 
 void V3Waiver::addEntry(V3ErrorCode errorCode, const std::string& filename,

src/V3Width.cpp

@@ -74,7 +74,6 @@
 #include "V3Task.h"
 
 #include <algorithm>
-#include <cstdarg>
 
 // More code; this file was getting too large; see actions there
 #define _V3WIDTH_CPP_

src/V3WidthSel.cpp

@@ -33,8 +33,6 @@
 #include "V3Width.h"
 #include "V3Const.h"
 
-#include <cstdarg>
-
 //######################################################################
 // Width state, as a visitor of each AstNode
 

src/Verilator.cpp

@@ -56,7 +56,6 @@
 #include "V3Inst.h"
 #include "V3Life.h"
 #include "V3LifePost.h"
-#include "V3LinkCells.h"
 #include "V3LinkDot.h"
 #include "V3LinkJump.h"
 #include "V3LinkInc.h"
@@ -70,7 +69,6 @@
 #include "V3Order.h"
 #include "V3Os.h"
 #include "V3Param.h"
-#include "V3Parse.h"
 #include "V3ParseSym.h"
 #include "V3Partition.h"
 #include "V3PreShell.h"
@@ -99,7 +97,6 @@
 #include "V3Width.h"
 
 #include <ctime>
-#include <sys/stat.h>
 
 V3Global v3Global;
 

src/VlcTop.cpp

@@ -21,7 +21,6 @@
 
 #include <algorithm>
 #include <fstream>
-#include <sys/stat.h>
 
 //######################################################################
 

src/verilog.l

@@ -22,8 +22,6 @@
 #include "V3ParseImp.h"  // Defines YYTYPE; before including bison header
 #include "V3ParseBison.h"  // Generated by bison
 
-#include <cstdlib>
-
 extern void yyerror(const char*);
 extern void yyerrorf(const char* format, ...);