diff options
Diffstat (limited to 'tools/mhmake/src/mhmakefileparser.cpp')
| -rw-r--r-- | tools/mhmake/src/mhmakefileparser.cpp | 1106 | 
1 files changed, 1106 insertions, 0 deletions
| diff --git a/tools/mhmake/src/mhmakefileparser.cpp b/tools/mhmake/src/mhmakefileparser.cpp new file mode 100644 index 000000000..de7b22da3 --- /dev/null +++ b/tools/mhmake/src/mhmakefileparser.cpp @@ -0,0 +1,1106 @@ +/*  This file is part of mhmake.
 + *
 + *  Copyright (C) 2001-2009 Marc Haesen
 + *
 + *  Mhmake is free software: you can redistribute it and/or modify
 + *  it under the terms of the GNU General Public License as published by
 + *  the Free Software Foundation, either version 3 of the License, or
 + *  (at your option) any later version.
 + *
 + *  Mhmake is distributed in the hope that it will be useful,
 + *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 + *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + *  GNU General Public License for more details.
 + *
 + *  You should have received a copy of the GNU General Public License
 + *  along with Mhmake.  If not, see <http://www.gnu.org/licenses/>.
 +*/
 +
 +/* $Rev$ */
 +
 +#include "stdafx.h"
 +#include "util.h"
 +#include "md5.h"
 +
 +#include "mhmakefileparser.h"
 +#include "rule.h"
 +#include "mhmakelexer.h"
 +
 +///////////////////////////////////////////////////////////////////////////////
 +int mhmakefileparser::yylex(void)
 +{
 +  m_yyloc=m_ptheLexer->m_Line;
 +  return m_ptheLexer->yylex(m_theTokenValue);
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +void mhmakefileparser::yyerror(const char *m)
 +{
 +  cerr << this->m_ptheLexer->m_InputFileName<< " ("<<m_yyloc<<"): "<<m<<endl;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +int mhmakefileparser::ParseFile(const refptr<fileinfo> &FileInfo,bool SetMakeDir)
 +{
 +  mhmakelexer theLexer;
 +  m_ptheLexer=&theLexer;
 +  if (SetMakeDir)
 +  {
 +    m_MakeDir=curdir::GetCurDir();
 +    m_Variables[CURDIR]=m_MakeDir->GetQuotedFullFileName();
 +  }
 +  theLexer.m_InputFileName=FileInfo->GetFullFileName();
 +  theLexer.m_pParser=(mhmakeparser*)this;
 +  theLexer.yyin=::fopen(FileInfo->GetFullFileName().c_str(),"r");
 +  if (!theLexer.yyin)
 +  {
 +    cerr << "Error opening makefile: "<<FileInfo->GetQuotedFullFileName()<<endl;
 +    return 1;
 +  }
 +  int Ret=yyparse();
 +  ::fclose(theLexer.yyin);
 +  return Ret;
 +}
 +
 +
 +///////////////////////////////////////////////////////////////////////////////
 +bool mhmakefileparser::IsDefined(const string &Var) const
 +{
 +  bool Ret = m_Variables.find(Var)!=m_Variables.end();
 +  if (!Ret)
 +  {
 +    string Env=GetFromEnv(Var);
 +    if (!Env.empty())
 +    {
 +      Ret=true;
 +    }
 +  }
 +  return Ret;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +static inline size_t SkipUntilQuote(const string &Expr,size_t i,char Char)
 +{
 +  while (Expr[i++]!=Char) ;
 +  return i;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +static inline size_t SkipMakeExpr(const string &Expr,size_t i)
 +{
 +  char Char=Expr[i++];
 +  if (Char!='(')
 +    return i;
 +  Char=Expr[i++];
 +  while (Char!=')')
 +  {
 +    if (Char=='$')
 +    {
 +      i=SkipMakeExpr(Expr,i);
 +    }
 +    Char=Expr[i++];
 +  }
 +  return i;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +// Splits expression on the Item, but the item may not occur within
 +// a macro or quoted string
 +static pair<string,string> SplitExpr(const string &Expr,char Item)
 +{
 +  size_t i=0;
 +  char Char=Expr[i++];
 +  while (Char!=Item)
 +  {
 +    if (Char=='"' || Char=='\'')
 +    {
 +      i=SkipUntilQuote(Expr,i,Char);
 +    }
 +    else if (Char=='$')
 +    {
 +      i=SkipMakeExpr(Expr,i);
 +    }
 +    Char=Expr[i++];
 +  }
 +  return pair<string,string>(Expr.substr(0,i-1),Expr.substr(i));
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +bool mhmakefileparser::IsEqual(const string &EqualExpr) const
 +{
 +  string Expr=ExpandExpression(EqualExpr);
 +  const char *pStr=Expr.c_str();
 +  const char *pTmp=pStr;
 +  while (*pTmp && *pTmp!=',') pTmp++;
 +  ptrdiff_t Pos=pTmp-pStr;
 +  size_t Size=Expr.size();
 +  pTmp=pStr+Size-1;
 +  while (pTmp>pStr && strchr(" \t",*pTmp))
 +  {
 +    pTmp--;
 +  }
 +  if (2*Pos != pTmp-pStr)
 +  {
 +    return false;
 +  }
 +  pTmp=pStr;
 +  const char *pTmp2=pTmp+Pos+1;
 +  if (*pTmp=='(')
 +  {
 +    pTmp++;
 +    Pos--;
 +  }
 +  for (int i=0; i<Pos; i++)
 +  {
 +    if (pTmp[i]!=pTmp2[i])
 +    {
 +      return false;
 +    }
 +  }
 +  return true;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +string mhmakefileparser::ExpandExpression(const string &Expr) const
 +{
 +  ((mhmakefileparser*)this)->m_InExpandExpression++;
 +  size_t i=0;
 +  size_t Length=Expr.size();
 +  string Ret;
 +  string ToAdd;
 +  while (i<Length)
 +  {
 +    char Char=Expr[i++];
 +    if (Char=='$')
 +    {
 +      char CharNext=Expr[i];
 +      if (CharNext=='$')
 +      {
 +        ToAdd="$$";
 +        i++;
 +      }
 +      else
 +      {
 +        size_t inew=SkipMakeExpr(Expr,i);
 +        i++;
 +        if (inew>i)
 +        {
 +          ToAdd=ExpandMacro(Expr.substr(i,inew-i-1));
 +          i=inew;
 +        }
 +        else
 +        {
 +          // This is a single character expression
 +          ToAdd=ExpandMacro(string(1,Expr[i-1]));
 +        }
 +      }
 +      Ret+=ToAdd;
 +    }
 +    else
 +    {
 +      Ret+=Char;
 +    }
 +  }
 +  if (m_InExpandExpression==1)
 +  {
 +      // Here we do a special case in case we still have a $ within a %
 +    if (Ret.find('$')!=string::npos)
 +      Ret=ExpandExpression(Ret);
 +    size_t Pos;
 +    while ((Pos=Ret.find("$$"))!=string::npos)
 +    {
 +      Ret=Ret.replace(Pos,2,"$");
 +    }
 +  }
 +  ((mhmakefileparser*)this)->m_InExpandExpression--;
 +
 +  return Ret;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +string mhmakefileparser::ExpandMacro(const string &Expr) const
 +{
 +  if (Expr.find('%')!=string::npos && Expr.find('$')==string::npos && Expr.find(':')==string::npos)
 +    return string("$(")+Expr+")";
 +  string ExpandedExpr=ExpandExpression(Expr);
 +
 +  const char *pTmp=ExpandedExpr.c_str();
 +  /* First remove leading spaces */
 +  while (*pTmp==' ' || *pTmp=='\t') pTmp++;
 +  const char *pVar=pTmp;
 +  while (*pTmp && *pTmp!=' ' && *pTmp!='\t' && *pTmp!=':') pTmp++;
 +  const char *pVarEnd=pTmp;
 +  char Type=*pTmp++;
 +  while (*pTmp && (*pTmp==' ' || *pTmp=='\t')) pTmp++;
 +  if (Type&&*pTmp)
 +  { // We have a match for the regular expression ^([^ \\t:]+)([: \\t])[ \\t]*(.+)
 +    if (Type==':')
 +    {
 +      #ifdef WIN32
 +      bool IsFileName=false;
 +      if (pVarEnd-pVar == 1 && (*pVar=='<' || *pVar =='@'))
 +        IsFileName=true;
 +      #endif
 +      string ToSubst=ExpandExpression(ExpandVar(string(pVar,pVarEnd)));
 +      const char *pSrc=pTmp;
 +      const char *pStop=pSrc;
 +      while (*pStop!='=') pStop++;
 +      const char *pTo=pStop+1;
 +      string SrcStr(pSrc,pStop);
 +      string ToStr(pTo);
 +      #ifdef WIN32
 +      if (IsFileName)
 +        return QuoteFileName(Substitute(UnquoteFileName(ToSubst),SrcStr,ToStr));
 +      #endif
 +      return Substitute(ToSubst,SrcStr,ToStr);
 +    }
 +    else if (Type==' ' || Type == '\t')
 +    {
 +      string Func(pVar,pVarEnd);
 +      string Arg(pTmp);
 +      if (Arg.find('%')!=string::npos && Arg.find('$')!=string::npos)
 +        return string("$(")+ExpandedExpr+")";
 +      function_f pFunc=m_Functions[Func];
 +      #ifdef _DEBUG
 +      if (pFunc)
 +      {
 +        return (this->*pFunc)(Arg);
 +      }
 +      else
 +      {
 +        throw string("Unknown function specified in macro: ")+Func;
 +      }
 +      #else
 +      return (this->*pFunc)(Arg);
 +      #endif
 +    }
 +    else
 +    {
 +    #ifdef _DEBUG
 +      throw string("Fatal error in ExpandMacro (bug in mhmake ? ? ?)");
 +    #else
 +      return g_EmptyString;
 +    #endif
 +    }
 +  }
 +  else
 +  {
 +    return ExpandExpression(ExpandVar(ExpandedExpr));
 +  }
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +string mhmakefileparser::ExpandVar(const string &Var) const
 +{
 +  map<string,string>::const_iterator pIt=m_Variables.find(Var);
 +  if (pIt==m_Variables.end())
 +  {
 +    if (Var.size()==1)
 +    {
 +      char Char=Var[0];
 +      if (m_RuleThatIsBuild)
 +      {
 +        switch (Char)
 +        {
 +          case '<': // return first prerequisit
 +#ifdef _DEBUG
 +            if (!m_RuleThatIsBuild->GetDeps().size())
 +            {
 +              return "<No Dependencies defined.>";
 +            }
 +#endif
 +            return m_RuleThatIsBuild->GetDeps()[0]->GetQuotedFullFileName();
 +          case '@': // return full target file name
 +            return m_RuleThatIsBuild->GetQuotedFullFileName();
 +          case '*': // return stem
 +            return m_RuleThatIsBuild->GetRule()->GetStem();
 +          case '^': // return all prerequisits
 +            return m_RuleThatIsBuild->GetPrerequisits();
 +          case '/':
 +            return OSPATHSEPSTR;
 +          default:
 +            break;
 +        }
 +      }
 +      else
 +      {
 +        switch (Char)
 +        {
 +          case '<': // return first prerequisit
 +          case '@': // return full target file name
 +          case '*': // return stem
 +          case '^': // return all prerequisits
 +            return Var;  // To make comparing of rules more accurate
 +          case '/':
 +            return OSPATHSEPSTR;
 +          default:
 +            break;
 +        }
 +      }
 +    }
 +    string Env=GetFromEnv(Var);
 +    if (Env.empty())
 +    {
 +      #ifdef _DEBUG
 +      if (g_PrintAdditionalInfo)
 +      {
 +        cout<<"Warning: Variable "<<Var<<" not found\n";
 +      }
 +      #endif
 +      return g_EmptyString;
 +    }
 +    else
 +      return Env;
 +  }
 +  else
 +    return pIt->second;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +void SplitToItems(const string &String,vector< refptr<fileinfo> > &Items,refptr<fileinfo> Dir)
 +{
 +  const char *pTmp=String.c_str();
 +  while (*pTmp)
 +  {
 +    string Item;
 +    pTmp=NextItem(pTmp,Item);
 +    if (!Item.empty())
 +    {
 +      Items.push_back(GetFileInfo(Item,Dir));
 +    }
 +  }
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +void mhmakefileparser::ParseBuildedIncludeFiles()
 +{
 +  vector<string>::iterator It=m_ToBeIncludeAfterBuild.begin();
 +  while (It!=m_ToBeIncludeAfterBuild.end())
 +  {
 +    int result=ParseFile(GetFileInfo(*It));
 +    if (result)
 +    {
 +      throw string("Error parsing ")+*It;
 +    }
 +    It++;
 +  }
 +}
 +
 +#ifdef _DEBUG
 +///////////////////////////////////////////////////////////////////////////////
 +void mhmakefileparser::PrintVariables(bool Expand) const
 +{
 +  map<string,string>::const_iterator It=m_Variables.begin();
 +  while (It!=m_Variables.end())
 +  {
 +    if (Expand)
 +    {
 +      try
 +      {
 +        cout<<It->first<<" : "<<ExpandExpression(It->second)<<endl;
 +      }
 +      catch (...)
 +      {
 +        cout<<endl;
 +      }
 +    }
 +    else
 +    {
 +      cout<<It->first<<" : "<<It->second<<endl;
 +    }
 +    It++;
 +  }
 +  cout << "Exported Variables:\n";
 +  vector<string>::const_iterator It2=m_Exports.begin();
 +  while (It2!=m_Exports.end())
 +  {
 +    cout<<*It2<<endl;
 +    It2++;
 +  }
 +}
 +#endif
 +
 +//#define PAGETOSTRING(Nr)  #Nr
 +//#define PAGETONBR(Nr)  PAGETOSTRING(##Nr)
 +//#pragma message("ar=" PAGETONBR(NULL) ";")
 +
 +///////////////////////////////////////////////////////////////////////////////
 +void mhmakefileparser::AddRule()
 +{
 +  vector< refptr<fileinfo> >::iterator pIt=m_pCurrentItems->begin();
 +  while (pIt!=m_pCurrentItems->end())
 +  {
 +    if ((*pIt)->GetFullFileName().find('%')!=string::npos)
 +    {
 +      IMPLICITRULE::AddImplicitRule(*pIt,*m_pCurrentDeps,m_pCurrentRule);
 +    }
 +    else
 +    {
 +      // If we had a double colon we must make sure that the target is always build
 +      if (m_DoubleColonRule)
 +      {
 +        (*pIt)->SetNotExist();
 +      }
 +      (*pIt)->SetRuleIfNotExist(m_pCurrentRule);
 +      if (!m_pCurrentRule)
 +        (*pIt)->AddDeps(*m_pCurrentDeps);
 +      else
 +        (*pIt)->InsertDeps(*m_pCurrentDeps);
 +      if (!m_FirstTarget)
 +      { // Only check this if the rule is not an implicit rule
 +        m_FirstTarget=(*m_pCurrentItems)[0];
 +      }
 +    }
 +    pIt++;
 +  }
 +  m_pCurrentItems=NULL;
 +  m_pCurrentRule=NullRule;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +void mhmakefileparser::GetAutoDeps(const refptr<fileinfo> &FirstDep,set< refptr<fileinfo> > &Autodeps)
 +{
 +  /* Here we have to scan only c/c++ headers so skip certain extensions */
 +  const char *pFullName=FirstDep->GetFullFileName().c_str();
 +  const char *pExt=strrchr(pFullName,'.');
 +  bool bPython=false;
 +  if (pExt)
 +  {
 +    if (!_stricmp(pExt+1,"py"))
 +      bPython=true;
 +  }
 +
 +  FILE *pIn=fopen(pFullName,"r");
 +  if (!pIn)
 +    return;
 +
 +  refptr<fileinfo> CurDir=curdir::GetCurDir();  /* Since we are calling BuildTarget, the current directory might change, which is not what we should expecting */
 +  char IncludeList[255];
 +  int PrevRet=0;
 +  int Ret=fgetc(pIn);
 +  while(Ret!=EOF)
 +  {
 +    char Type[2];
 +    bool bFound=false;
 +    if (bPython)
 +    {
 +      Type[0]='"';
 +      if (Ret=='i')
 +      {
 +        Ret=fscanf(pIn,"mport %254[^\"\n]",IncludeList);
 +        if (Ret==1)
 +        {
 +          if (IncludeList[0]!='*')
 +            bFound=true;
 +        }
 +      }
 +    }
 +    else
 +    {
 +      if (PrevRet=='/')
 +      {
 +        if (Ret=='/')
 +        {
 +          /* This is a C++ command so read until the next line-feed */
 +          do
 +          {
 +            Ret=fgetc(pIn);
 +          } while (Ret!='\n' && Ret!=EOF);
 +        }
 +        else if (Ret=='*')
 +        {
 +          /* This is a standard C comment, so read until then end of the command */
 +          do
 +          {
 +            PrevRet=Ret;
 +            Ret=fgetc(pIn);
 +          } while ((PrevRet!='*' || Ret!='/') && Ret!=EOF);
 +        }
 +      }
 +      else if (Ret=='#' || Ret=='.')
 +      {
 +        if (Ret=='#')
 +          Ret=fscanf(pIn,"include %1[\"<]%254[^>\"]%*[\">]",&Type,IncludeList);
 +        else
 +          Ret=fscanf(pIn,"import %1[\"<]%254[^>\"]%*[\">]",&Type,IncludeList);
 +        if (Ret==2)
 +        {
 +          bFound=true;
 +        }
 +      }
 +    }
 +    if (bFound)
 +    {
 +      const char *pTmp=IncludeList;
 +      while (*pTmp)
 +      {
 +        string IncludeFile;
 +        pTmp=NextItem(pTmp,IncludeFile," \t,");
 +        if (bPython)
 +          IncludeFile+=".py";
 +
 +        if (SkipHeaderFile(IncludeFile))
 +          continue;
 +        #ifdef _DEBUG
 +        m_ImplicitSearch++; // This is to avoid warnings of targets that does not exist
 +        #endif
 +        if (Type[0]=='"')
 +        {
 +          refptr<fileinfo> pInclude=GetFileInfo(IncludeFile,FirstDep->GetDir());
 +          /* Add the dependency when the file alrady exist or there is a rule available to be build */
 +          if (BuildTarget(pInclude).DoesExist())  // Try to build the target, and add it if it exists after building
 +          {
 +            set< refptr<fileinfo> >::iterator pFind=Autodeps.find(pInclude);
 +            if (pFind==Autodeps.end())
 +            {
 +              Autodeps.insert(pInclude);
 +              GetAutoDeps(pInclude,Autodeps);
 +            }
 +          }
 +        }
 +        const refptr<fileinfoarray> IncludeDirs=GetIncludeDirs();
 +        vector< refptr<fileinfo> >::const_iterator It=IncludeDirs->begin();
 +        while (It<IncludeDirs->end())
 +        {
 +          refptr<fileinfo> pInclude=GetFileInfo(IncludeFile,*It);
 +          if (BuildTarget(pInclude).DoesExist()) // Try to build the target, and add it if it exists after building
 +          {
 +            set< refptr<fileinfo> >::iterator pFind=Autodeps.find(pInclude);
 +            if (pFind==Autodeps.end())
 +            {
 +              Autodeps.insert(pInclude);
 +              GetAutoDeps(pInclude,Autodeps);
 +            }
 +            break;
 +          }
 +          It++;
 +        }
 +        #ifdef _DEBUG
 +        m_ImplicitSearch--;
 +        #endif
 +      }
 +    }
 +    PrevRet=Ret;
 +    Ret=fgetc(pIn);
 +  }
 +  fclose(pIn);
 +  curdir::ChangeCurDir(CurDir);
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +void mhmakefileparser::UpdateAutomaticDependencies(const refptr<fileinfo> &Target)
 +{
 +  const char *pName=Target->GetFullFileName().c_str();
 +  const char *pExt=strrchr(pName,'.');
 +  if (!pExt)
 +    return;
 +  if (Target->IsAutoDepExtention())
 +  {
 +    // we have to search for the include files in the first dependency of Target
 +    vector< refptr<fileinfo> > &Deps=Target->GetDeps();
 +    if (!Deps.size())
 +      return; // There is no first dep
 +    refptr<fileinfo> FirstDep=Deps[0];
 +
 +    set< refptr<fileinfo> > &Autodeps=m_AutoDeps[Target];
 +    Autodeps.clear(); // We are going to scan again, so clear the list
 +    GetAutoDeps(FirstDep,Autodeps);
 +    // Now add these dependencies also to the rules
 +    set< refptr<fileinfo> >::iterator It=Autodeps.begin();
 +    while (It!=Autodeps.end())
 +    {
 +      Target->AddDep(*It);
 +      It++;
 +    }
 +    m_AutoDepsDirty=true;
 +  }
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +const refptr<fileinfoarray> mhmakefileparser::GetIncludeDirs() const
 +{
 +  string Includes=ExpandExpression("$(INCLUDES)");
 +  if (!m_pIncludeDirs || Includes != m_IncludeDirs)
 +  {
 +    ((mhmakefileparser*)this)->m_IncludeDirs=Includes;
 +    ((mhmakefileparser*)this)->m_pIncludeDirs=refptr<fileinfoarray>(new fileinfoarray);
 +    if (Includes.empty())  // If not defined try a default path
 +      Includes="include inc .."OSPATHSEPSTR"include .."OSPATHSEPSTR"inc";
 +    const char *pTmp=Includes.c_str();
 +    while (*pTmp)
 +    {
 +      string Item;
 +      pTmp=NextItem(pTmp,Item);
 +      refptr<fileinfo> pIncDir=GetFileInfo(Item,m_MakeDir);
 +      if (pIncDir->Exists() || pIncDir->GetRule())
 +        ((mhmakefileparser*)this)->m_pIncludeDirs->push_back(pIncDir);
 +    }
 +  }
 +  return m_pIncludeDirs;
 +}
 +
 +static void ReadStr(FILE *pFile,char *Str)
 +{
 +  int i=0;
 +  while (1)
 +  {
 +    Str[i]=fgetc(pFile);
 +#ifdef _DEBUG
 +    if (Str[i]==EOF)
 +    {
 +      cout<<"Premature end of depency file.\n";
 +      Str[i]=0;
 +      return;
 +    }
 +#endif
 +    if (Str[i]=='\n')
 +      break;
 +    i++;
 +  }
 +  Str[i]='\0';
 +}
 +
 +void mhmakefileparser::LoadAutoDepsFile(refptr<fileinfo> &DepFile)
 +{
 +  if (m_AutoDepFileLoaded && m_AutoDepFileLoaded==DepFile)
 +    return;  /* This autodep file is already loaded. */
 +
 +  m_AutoDepFileLoaded=DepFile;
 +
 +  FILE *pIn=fopen(DepFile->GetFullFileName().c_str(),"rb");
 +#ifdef _DEBUG
 +  if (!pIn)
 +  {
 +    cerr << "Error opening autodep file "<<DepFile->GetQuotedFullFileName()<<endl;
 +    return;
 +  }
 +#endif
 +  fread(&m_EnvMd5_32,sizeof(m_EnvMd5_32),1,pIn);
 +#ifdef _DEBUG
 +  if (g_PrintAdditionalInfo)
 +    cout << "Reading Env Md5 from "<<DepFile->GetQuotedFullFileName()<<": "<<hex<<m_EnvMd5_32<<endl;
 +#endif
 +  char UsedEnvVars[1024];
 +  ReadStr(pIn,UsedEnvVars);
 +  SetVariable(USED_ENVVARS,UsedEnvVars);
 +
 +  char FileName[MAX_PATH];
 +  ReadStr(pIn,FileName);
 +  while (FileName[0])
 +  {
 +    refptr<fileinfo> Target=GetFileInfo(FileName);
 +    set< refptr<fileinfo> > &Autodeps=m_AutoDeps[Target];
 +    ReadStr(pIn,FileName);
 +    while (FileName[0])
 +    {
 +      if (!g_ForceAutoDepRescan)  /* If we are forcing the autodepscan we do not have to load the dependencies. */
 +      {
 +        refptr<fileinfo> Dep=GetFileInfo(FileName);
 +        Autodeps.insert(Dep);
 +        Target->AddDep(Dep);
 +      }
 +      ReadStr(pIn,FileName);
 +    }
 +    ReadStr(pIn,FileName);
 +  }
 +
 +  uint32 Md5_32;
 +  bool MakeNotDirty=true;
 +  while (fread(&Md5_32,sizeof(Md5_32),1,pIn))
 +  {
 +    ReadStr(pIn,FileName);
 +    pair <set<refptr<fileinfo>,less_refptrfileinfo >::iterator, bool> pPair=g_FileInfos.insert(new fileinfo(FileName,Md5_32));
 +    if (!pPair.second)
 +    {
 +      if (!(*pPair.first)->CompareMd5_32(Md5_32) && !(*pPair.first)->CompareMd5_32(0))
 +        MakeNotDirty=false; /* BuildTarget had set the dirty flag, but since the md5 did not change it was a false dirty. This is for BuildTargets called before this routine */
 +      #ifdef _DEBUG
 +      if (!(*pPair.first)->CompareMd5_32(Md5_32) && !(*pPair.first)->CompareMd5_32(0))
 +        cout << "Warning: trying to set to different md5's for Target "<<(*pPair.first)->GetQuotedFullFileName()<<" Old: "<<hex<<(*pPair.first)->GetCommandsMd5_32()<<" New: "<<Md5_32<<endl;
 +      if (g_PrintAdditionalInfo)
 +        cout << "Setting Md5 for Target "<<(*pPair.first)->GetQuotedFullFileName()<<" to "<<hex<<Md5_32<<endl;
 +      #endif
 +      (*pPair.first)->SetCommandsMd5_32(Md5_32);  // If it was already there, just update the md5 value
 +    }
 +    AddTarget(*pPair.first);
 +  }
 +  if (MakeNotDirty)
 +    m_AutoDepsDirty=false;
 +
 +  fclose(pIn);
 +}
 +
 +static void MakeDirs(const refptr<fileinfo> & Dir)
 +{
 +  refptr<fileinfo> ParentDir=Dir->GetDir();
 +  if (!ParentDir->GetDate().DoesExist())
 +  {  /* First make parent dirs */
 +    MakeDirs(ParentDir);
 +  }
 +  if (!Dir->GetDate().DoesExist())
 +  { /* Create directory */
 +    mkdir(Dir->GetFullFileName().c_str(),S_IRWXU);
 +  }
 +}
 +
 +void mhmakefileparser::SaveAutoDepsFile()
 +{
 +  if (!m_AutoDepsDirty)
 +    return;
 +
 +  if (g_Clean
 +#ifdef _DEBUG
 +      || g_DoNotExecute || g_GenProjectTree
 +#endif
 +     )
 +    return;   // do not save on clean or if no commands are executed
 +
 +  string DepFile=ExpandVar(AUTODEPFILE);
 +  if (!DepFile.size())
 +  {
 +    return;
 +  }
 +  refptr<fileinfo> pDepFile=GetFileInfo(DepFile);
 +
 +#ifdef _DEBUG
 +  if (g_PrintAdditionalInfo)
 +    cout<<"Saving automatic dependency file "<<DepFile<<endl;
 +#endif
 +
 +  FILE *pOut=fopen(pDepFile->GetFullFileName().c_str(),"wb");
 +  if (!pOut)
 +  {
 +    /* Maybe it is because the directory does not exist, so try to create this first */
 +    MakeDirs(pDepFile->GetDir());
 +    pOut=fopen(pDepFile->GetFullFileName().c_str(),"wb");
 +
 +    if (!pOut)
 +    {
 +      #ifdef _DEBUG
 +      if (!g_DoNotExecute)
 +      #endif
 +        cerr << "Error creating file "<<DepFile<<endl;
 +      return;
 +    }
 +  }
 +  // First update the USER_ENVVARS variable and then save it to the dep file together with the md5 string
 +  CreateUSED_ENVVARS();
 +  uint32 Md5_32=CreateEnvMd5_32();
 +  fwrite(&Md5_32,sizeof(Md5_32),1,pOut);
 +  fprintf(pOut,"%s\n",m_Variables[USED_ENVVARS].c_str());
 +
 +  map< refptr<fileinfo>, set< refptr<fileinfo> > >::const_iterator It=m_AutoDeps.begin();
 +  while (It!=m_AutoDeps.end())
 +  {
 +    fprintf(pOut,"%s\n",It->first->GetFullFileName().c_str());
 +    set< refptr<fileinfo> >::const_iterator DepIt=It->second.begin();
 +    while (DepIt!=It->second.end())
 +    {
 +      fprintf(pOut,"%s\n",(*DepIt)->GetFullFileName().c_str());
 +      DepIt++;
 +    }
 +    fprintf(pOut,"\n");
 +    It++;
 +  }
 +  /* Now save the Md5 strings */
 +  fprintf(pOut,"\n");
 +
 +  set< const fileinfo * , less_fileinfo>::iterator pIt=m_Targets.begin();
 +  while (pIt!=m_Targets.end())
 +  {
 +    if (!(*pIt)->CompareMd5_32(0))
 +    {
 +      (*pIt)->WriteMd5_32(pOut);
 +      string FileName=(*pIt)->GetFullFileName();
 +      fwrite(FileName.c_str(),FileName.size(),1,pOut);
 +      fputc('\n',pOut);
 +    }
 +    pIt++;
 +  }
 +
 +  fclose(pOut);
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +// Uses the SKIPHEADERS variable to check if we have to skip the header in
 +// the automatic dependency scanning
 +
 +bool mhmakefileparser::SkipHeaderFile(const string &FileName)
 +{
 +  if (!m_SkipHeadersInitialized)
 +  {
 +    m_SkipHeadersInitialized=true;
 +    string HeadersToSkip=ExpandVar(SKIPHEADERS);
 +    const char *pTmp=HeadersToSkip.c_str();
 +    while (*pTmp)
 +    {
 +      string Item;
 +      pTmp=NextItem(pTmp,Item);
 +      if (Item.find('%')==string::npos)
 +      {
 +        m_SkipHeaders.insert(Item);
 +      }
 +      else
 +      {
 +        m_PercentHeaders.push_back(Item);
 +      }
 +    }
 +  }
 +  if (m_SkipHeaders.find(FileName)!=m_SkipHeaders.end())
 +    return true;
 +
 +  vector<string>::const_iterator It=m_PercentHeaders.begin();
 +  vector<string>::const_iterator ItEnd=m_PercentHeaders.end();
 +  while (It!=ItEnd)
 +  {
 +    if (PercentMatch(FileName,*It++))
 +      return true;
 +  }
 +
 +  return false;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +// Makes sure that the makefile exports are set in the environment
 +
 +const mhmakefileparser *mhmakefileparser::m_spCurEnv; // Identifies which makefiles exports are currently set
 +
 +void mhmakefileparser::InitEnv() const
 +{
 +  if (this!=m_spCurEnv)
 +  {
 +    /* First restore the previous set environment variables */
 +    if (m_spCurEnv)
 +      m_spCurEnv->RestoreEnv();
 +
 +    ((mhmakefileparser*)this)->SaveEnv();
 +    vector<string>::const_iterator It=m_Exports.begin();
 +    vector<string>::const_iterator ItEnd=m_Exports.end();
 +    while (It!=ItEnd)
 +    {
 +      putenv((char *)It->c_str());
 +      It++;
 +    }
 +    m_spCurEnv=this;
 +  }
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +void mhmakefileparser::SaveEnv()
 +{
 +  vector<string>::const_iterator It=m_Exports.begin();
 +  vector<string>::const_iterator ItEnd=m_Exports.end();
 +  while (It!=ItEnd)
 +  {
 +    string Export=*It++;
 +    const char *pTmp=Export.c_str();
 +    string Var;
 +    NextItem(pTmp,Var,"=");
 +    const char *pEnv=getenv(Var.c_str());
 +    string Env;
 +    if (pEnv)
 +      Env=pEnv;
 +    m_SavedExports[Var]=Env;
 +  }
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +void mhmakefileparser::RestoreEnv() const
 +{
 +  if (m_spCurEnv && this!=m_spCurEnv)
 +  {
 +    m_spCurEnv->RestoreEnv();  // Make sure that environment variable that were set in the other makefile (m_spCurEnv) are cleared, otherwise the environment is not completely restored.
 +  }
 +
 +  map<string,string>::const_iterator It=m_SavedExports.begin();
 +  map<string,string>::const_iterator ItEnd=m_SavedExports.end();
 +  while (It!=ItEnd)
 +  {
 +#ifdef WIN32
 +    char Env[1024];
 +    sprintf(Env,"%s=%s",It->first.c_str(),It->second.c_str());
 +    putenv(Env);
 +#else
 +    /* on linux, only use putenv if you know the supplied string will stay in memory */
 +    setenv(It->first.c_str(),It->second.c_str(),1);
 +#endif
 +    It++;
 +  }
 +  ((mhmakefileparser*)this)->m_SavedExports.clear();
 +  m_spCurEnv=NULL;
 +}
 +
 +
 +///////////////////////////////////////////////////////////////////////////////
 +//
 +//Checks if the variables retreived from the environment or command-line have been
 +//changed. Do this at late as possible because they can also be changed in theLexer
 +//makefiles.
 +//
 +void mhmakefileparser::CheckEnv(void)
 +{
 +  if (CompareEnv())
 +  {
 +    #ifdef _DEBUG
 +    if (!g_GenProjectTree)
 +      cout << "Rebuilding everything of "<< m_MakeDir->GetQuotedFullFileName() <<" because environment and/or command-line variables have been changed.\n";
 +    #endif
 +    SetRebuildAll();
 +  }
 +
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +//
 +//Create a Md5 string from m_GlobalCommandLineVars and USED_ENVVARS
 +//
 +
 +
 +static bool SkipVar(const string &Var)
 +{
 +  if (Var==WC_REVISION)
 +    return true;
 +  if (Var==WC_URL)
 +    return true;
 +  if (Var==MAKE)
 +    return true;
 +  return false;
 +}
 +
 +#define DBGOUT(stuff)
 +
 +uint32 mhmakefileparser::CreateEnvMd5_32() const
 +{
 +  md5_context ctx;
 +  string Md5;
 +  string EnvVars=ExpandVar(USED_ENVVARS);
 +  const char *pTmp=EnvVars.c_str();
 +
 +  RestoreEnv();  // Restore the environment before creating the md5, so that we have the original environment when the makefile was parsed.
 +
 +  // Now create the md5 string
 +  md5_starts( &ctx );
 +
 +  DBGOUT(cout << "MD5 of " << m_MakeDir->GetQuotedFullFileName() << endl);
 +
 +  while (*pTmp)
 +  {
 +    string Var;
 +    pTmp=NextItem(pTmp,Var,";");
 +    if (!SkipVar(Var))
 +    {
 +      string Val=ExpandVar(Var);
 +      transform(Val.begin(),Val.end(),Val.begin(),(int(__CDECL *)(int))toupper);
 +      DBGOUT(cout << GetMakeDir()->GetQuotedFullFileName() << " -> Setting GetFromEnv var " << Var << " to " << Val << endl);
 +      md5_update( &ctx, (uint8 *) Var.c_str(), (unsigned long)Var.size());
 +      md5_update( &ctx, (uint8 *) "=", 1);
 +      md5_update( &ctx, (uint8 *) Val.c_str(), (unsigned long)Val.size());
 +    }
 +  }
 +
 +  return md5_finish32( &ctx);
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +// Makes sure that the makefile exports are set in the environment
 +
 +bool mhmakefileparser::CompareEnv() const
 +{
 +  uint32 Md5_32=CreateEnvMd5_32();
 +#ifdef _DEBUG
 +  if (!g_GenProjectTree && Md5_32!=m_EnvMd5_32)
 +    cout << "Environment has been changed: "<<hex<<m_EnvMd5_32<<" to "<<Md5_32<<endl;
 +#endif
 +  return Md5_32!=m_EnvMd5_32;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +// Makes sure that the makefile exports are set in the environment
 +mh_time_t mhmakefileparser::m_sBuildTime;
 +
 +void mhmakefileparser::InitBuildTime()
 +{
 +#ifdef WIN32
 +  FILETIME FileTime;
 +  GetSystemTimeAsFileTime(&FileTime);
 +  m_sBuildTime=g_ZeroTime.ConvertTime(&FileTime);
 +#else
 +  m_sBuildTime=time(NULL);
 +#endif
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +// Returns a variable from the environment or from the command line and adds it the m_UsedEnvVars
 +string mhmakefileparser::GetFromEnv(const string &Var, bool Cache) const
 +{
 +  /* First we look into the command line variables, before we are looking in the environment */
 +  map<string,string>::const_iterator pLineFind=m_CommandLineVars.find(Var);
 +  if (pLineFind!=m_CommandLineVars.end())
 +  {
 +    ((mhmakefileparser*)this)->m_UsedEnvVars.insert(Var);
 +    if (Cache)
 +      ((mhmakefileparser*)this)->m_Variables[Var]=pLineFind->second;
 +    return pLineFind->second;
 +  }
 +
 +  const char *pEnv=getenv(Var.c_str());
 +  if (!pEnv)
 +  {
 +    return g_EmptyString;
 +  }
 +  ((mhmakefileparser*)this)->m_UsedEnvVars.insert(Var);
 +
 +  if (Cache)
 +    ((mhmakefileparser*)this)->m_Variables[Var]=pEnv;
 +  return pEnv;
 +}
 +
 +///////////////////////////////////////////////////////////////////////////////
 +// Creates the variable USER_ENVVARS to be saved in the autodeps file
 +//
 +
 +void mhmakefileparser::CreateUSED_ENVVARS()
 +{
 +
 +  set<string> Variables;
 +
 +  set<string>::const_iterator It=m_UsedEnvVars.begin();
 +  set<string>::const_iterator ItEnd=m_UsedEnvVars.end();
 +
 +  while (It!=ItEnd)
 +  {
 +    string Var=*It;
 +    if (!SkipVar(Var))
 +    {
 +      transform(Var.begin(),Var.end(),Var.begin(),(int(__CDECL *)(int))toupper);
 +      Variables.insert(Var);
 +    }
 +    It++;
 +  }
 +
 +  map<string,string>::const_iterator CLItEnd=loadedmakefile::sm_Statics.m_GlobalCommandLineVars.end();
 +  map<string,string>::const_iterator CLIt=loadedmakefile::sm_Statics.m_GlobalCommandLineVars.begin();
 +  while (CLIt!=CLItEnd)
 +  {
 +    string Var=CLIt->first;
 +    if (!SkipVar(Var))
 +    {
 +      transform(Var.begin(),Var.end(),Var.begin(),(int(__CDECL *)(int))toupper);
 +      Variables.insert(Var);
 +    }
 +    CLIt++;
 +  }
 +
 +  It=Variables.begin();
 +  ItEnd=Variables.end();
 +  string Val;
 +  while (It!=ItEnd)
 +  {
 +    Val+=*It;
 +    Val+=";";
 +    It++;
 +  }
 +
 +  m_Variables[USED_ENVVARS]=Val;
 +}
 +
 | 
