--- libraries/libmbutil/parser.cc.orig	2020-02-22 22:45:58 UTC

+++ libraries/libmbutil/parser.cc

@@ -46,7 +46,7 @@

 /* LowParser - begin */

 static int

-skip_remarks(HighParser& HP, InputStream& In, char &cIn)

+skip_remarks(HighParser& HP, InputStream& In, signed char &cIn)

 {

 skip_again:;

 	for (cIn = In.get(); isspace(cIn); cIn = In.get()) {

@@ -189,7 +189,7 @@ LowParser::Token

 LowParser::GetToken(InputStream& In)

 {

 	/* toglie gli spazi iniziali e tutti i commenti */

-	char cIn;

+	signed char cIn;

 	if (skip_remarks(HP, In, cIn)) {

 		return CurrToken = LowParser::ENDOFFILE;

 	}

@@ -845,7 +845,7 @@ HighParser::ParseWord(unsigned flags)

 	char* sBuf = sStringBuf;

 	char* sBufWithSpaces = sStringBufWithSpaces;

-	char cIn;

+	signed char cIn;

 	if (skip_remarks(*this, *pIn, cIn)) {

 		return CurrToken = HighParser::ENDOFFILE;

 	}

@@ -1212,7 +1212,7 @@ HighParser::IsStringWithDelims(enum Delims Del)

 	char cLdelim, cRdelim;

 	SetDelims(Del, cLdelim, cRdelim);

-	char cIn;

+	signed char cIn;

 	if (skip_remarks(*this, *pIn, cIn)) {

 		return false;

 	}

@@ -1242,7 +1242,7 @@ HighParser::GetStringWithDelims(enum Delims Del, bool 

 	char cLdelim, cRdelim;

 	SetDelims(Del, cLdelim, cRdelim);

-	char cIn;

+	signed char cIn;

 	if (skip_remarks(*this, *pIn, cIn)) {

 		return NULL;

 	}