diff -up gdl-0.9.8/src/dinterpreter.cpp.sign gdl-0.9.8/src/dinterpreter.cpp

--- gdl-0.9.8/src/dinterpreter.cpp.sign	2018-04-14 20:29:23.612484457 -0600

+++ gdl-0.9.8/src/dinterpreter.cpp	2018-04-14 20:29:23.628484629 -0600

@@ -666,7 +666,7 @@ DInterpreter::CommandCode DInterpreter::

 DInterpreter::CommandCode DInterpreter::CmdCompile( const string& command)

 {

   string cmdstr = command;

-  int sppos = cmdstr.find(" ",0);

+  size_t sppos = cmdstr.find(" ",0);

   if (sppos == string::npos) 

     {

       cout << "Interactive COMPILE not implemented yet." << endl;

@@ -676,7 +676,7 @@ DInterpreter::CommandCode DInterpreter::

   bool retAll = false; // Remember if Retall is needed

   // Parse each file name

-  int pos = sppos + 1;

+  size_t pos = sppos + 1;

   while (pos < command.length()) 

     {

       sppos = command.find(" ",pos);

@@ -737,7 +737,7 @@ DInterpreter::CommandCode DInterpreter::

   bool retAll = false; // Remember if Retall is needed

   // Parse each file name

-  int pos = sppos + 1;

+  size_t pos = sppos + 1;

   while (pos < command.length()) 

     {

       sppos = command.find(" ",pos);

@@ -799,7 +799,7 @@ DInterpreter::CommandCode DInterpreter::

 {

   string cmdstr = command;

   string args;

-  int sppos = cmdstr.find(" ",0);

+  size_t sppos = cmdstr.find(" ",0);

   if (sppos != string::npos) {

     args = cmdstr.substr(sppos+1);

     cmdstr = cmdstr.substr(0, sppos);

diff -up gdl-0.9.8/src/GDLLexer.cpp.sign gdl-0.9.8/src/GDLLexer.cpp

--- gdl-0.9.8/src/GDLLexer.cpp.sign	2018-03-26 03:57:27.000000000 -0600

+++ gdl-0.9.8/src/GDLLexer.cpp	2018-04-14 20:30:05.656936102 -0600

@@ -434,7 +434,7 @@ void GDLLexer::mINCLUDE(bool _createToke

 				std::string name = f->getText();

 		// find comments on the same line

-		long pos = name.find_first_of(';', 0);   

+		size_t pos = name.find_first_of(';', 0);   

 		if( pos != std::string::npos) // remove them  

 		name = name.substr(0, pos);

diff -up gdl-0.9.8/src/GDLParser.cpp.sign gdl-0.9.8/src/GDLParser.cpp

--- gdl-0.9.8/src/GDLParser.cpp.sign	2018-03-26 03:57:27.000000000 -0600

+++ gdl-0.9.8/src/GDLParser.cpp	2018-04-14 20:29:23.630484650 -0600

@@ -6773,7 +6773,7 @@ void GDLParser::arrayindex_list() {

 	antlr::ASTPair currentAST;

 	RefDNode arrayindex_list_AST = RefDNode(antlr::nullAST);

-	int rank = 1;

+	SizeT rank = 1;

 	if ((LA(1) == LSQUARE)) {