File pfstools-stringcompare.patch of Package pfstools

--- src/pfsglview/picture_io.cpp
+++ src/pfsglview/picture_io.cpp
@@ -87,7 +87,7 @@
 		return;
 
 	// only XYZ channels are taken into consideration
-	if( channel != "XYZ" &&  channel != "X00" && channel != "0Y0" && channel != "00Z" ) {
+	if( strcmp(channel,"XYZ") &&  strcmp(channel,"X00") && strcmp(channel,"0Y0") && strcmp(channel,"00Z") ) {
 		if(verbose)
 			fprintf( stderr, "WARNING: wrong channel (PictureIO::setFrame())\n");
 		return;