Fix compilation with gcc 10

Patch pulled from Fedora source RPM:
https://dl.fedoraproject.org/pub/fedora/linux/development/34/Everything/source/tree/Packages/l/libmp4v2-2.1.0-0.23.trunkREV507.fc34.src.rpm

Upstream-Status: Inappropriate[no upstream]
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

---
diff -Nrup a/libutil/Utility.cpp b/libutil/Utility.cpp
--- a/libutil/Utility.cpp	2015-04-24 09:37:49.000000000 -0600
+++ b/libutil/Utility.cpp	2019-09-24 12:39:23.669103515 -0600
@@ -531,26 +531,26 @@ Utility::process_impl()
                 printHelp( false, false );
                 return SUCCESS;
 
-            case LC_DEBUG:
+            case int(LC_DEBUG):
                 debugUpdate( std::strtoul( prog::optarg, NULL, 0 ) );
                 break;
 
-            case LC_VERBOSE:
+            case int(LC_VERBOSE):
             {
                 const uint32_t level = std::strtoul( prog::optarg, NULL, 0 );
                 _verbosity = ( level < 4 ) ? level : 3;
                 break;
             }
 
-            case LC_HELP:
+            case int(LC_HELP):
                 printHelp( true, false );
                 return SUCCESS;
 
-            case LC_VERSION:
+            case int(LC_VERSION):
                 printVersion( false );
                 return SUCCESS;
 
-            case LC_VERSIONX:
+            case int(LC_VERSIONX):
                 printVersion( true );
                 return SUCCESS;
 
diff -Nrup a/util/mp4art.cpp b/util/mp4art.cpp
--- a/util/mp4art.cpp	2015-04-24 09:37:49.000000000 -0600
+++ b/util/mp4art.cpp	2019-09-24 12:32:35.078171912 -0600
@@ -377,11 +377,11 @@ ArtUtility::utility_option( int code, bo
     handled = true;
 
     switch( code ) {
-        case LC_ART_ANY:
+        case int(LC_ART_ANY):
             _artFilter = numeric_limits<uint32_t>::max();
             break;
 
-        case LC_ART_INDEX:
+        case int(LC_ART_INDEX):
         {
             istringstream iss( prog::optarg );
             iss >> _artFilter;
@@ -390,29 +390,29 @@ ArtUtility::utility_option( int code, bo
             break;
         }
 
-        case LC_LIST:
+        case int(LC_LIST):
             _action = &ArtUtility::actionList;
             break;
 
-        case LC_ADD:
+        case int(LC_ADD):
             _action = &ArtUtility::actionAdd;
             _artImageFile = prog::optarg;
             if( _artImageFile.empty() )
                 return herrf( "invalid image file: empty-string\n" );
             break;
 
-        case LC_REMOVE:
+        case int(LC_REMOVE):
             _action = &ArtUtility::actionRemove;
             break;
 
-        case LC_REPLACE:
+        case int(LC_REPLACE):
             _action = &ArtUtility::actionReplace;
             _artImageFile = prog::optarg;
             if( _artImageFile.empty() )
                 return herrf( "invalid image file: empty-string\n" );
             break;
 
-        case LC_EXTRACT:
+        case int(LC_EXTRACT):
             _action = &ArtUtility::actionExtract;
             break;
 
diff -Nrup a/util/mp4chaps.cpp b/util/mp4chaps.cpp
--- a/util/mp4chaps.cpp	2015-04-24 09:37:49.000000000 -0600
+++ b/util/mp4chaps.cpp	2019-09-24 12:35:24.121316167 -0600
@@ -634,32 +634,32 @@ ChapterUtility::utility_option( int code
 
     switch( code ) {
         case 'A':
-        case LC_CHPT_ANY:
+        case int(LC_CHPT_ANY):
             _ChapterType = MP4ChapterTypeAny;
             break;
 
         case 'Q':
-        case LC_CHPT_QT:
+        case int(LC_CHPT_QT):
             _ChapterType = MP4ChapterTypeQt;
             break;
 
         case 'N':
-        case LC_CHPT_NERO:
+        case int(LC_CHPT_NERO):
             _ChapterType = MP4ChapterTypeNero;
             break;
 
         case 'C':
-        case LC_CHPT_COMMON:
+        case int(LC_CHPT_COMMON):
             _ChapterFormat = CHPT_FMT_COMMON;
             break;
 
         case 'l':
-        case LC_CHP_LIST:
+        case int(LC_CHP_LIST):
             _action = &ChapterUtility::actionList;
             break;
 
         case 'e':
-        case LC_CHP_EVERY:
+        case int(LC_CHP_EVERY):
         {
             istringstream iss( prog::optarg );
             iss >> _ChaptersEvery;
@@ -675,7 +675,7 @@ ChapterUtility::utility_option( int code
             _action = &ChapterUtility::actionExport;
             break;
 
-        case LC_CHP_EXPORT:
+        case int(LC_CHP_EXPORT):
             _action = &ChapterUtility::actionExport;
             /* currently not supported since the chapters of n input files would be written to one chapter file
             _ChapterFile = prog::optarg;
@@ -690,7 +690,7 @@ ChapterUtility::utility_option( int code
             _action = &ChapterUtility::actionImport;
             break;
 
-        case LC_CHP_IMPORT:
+        case int(LC_CHP_IMPORT):
             _action = &ChapterUtility::actionImport;
             /* currently not supported since the chapters of n input files would be read from one chapter file
             _ChapterFile = prog::optarg;
@@ -702,12 +702,12 @@ ChapterUtility::utility_option( int code
             break;
 
         case 'c':
-        case LC_CHP_CONVERT:
+        case int(LC_CHP_CONVERT):
             _action = &ChapterUtility::actionConvert;
             break;
 
         case 'r':
-        case LC_CHP_REMOVE:
+        case int(LC_CHP_REMOVE):
             _action = &ChapterUtility::actionRemove;
             break;
 
diff -Nrup a/util/mp4file.cpp b/util/mp4file.cpp
--- a/util/mp4file.cpp	2015-04-24 09:37:49.000000000 -0600
+++ b/util/mp4file.cpp	2019-09-24 12:33:09.735996459 -0600
@@ -190,15 +190,15 @@ FileUtility::utility_option( int code, b
     handled = true;
 
     switch( code ) {
-        case LC_LIST:
+        case int(LC_LIST):
             _action = &FileUtility::actionList;
             break;
 
-        case LC_OPTIMIZE:
+        case int(LC_OPTIMIZE):
             _action = &FileUtility::actionOptimize;
             break;
 
-        case LC_DUMP:
+        case int(LC_DUMP):
             _action = &FileUtility::actionDump;
             break;
 
diff -Nrup a/util/mp4subtitle.cpp b/util/mp4subtitle.cpp
--- a/util/mp4subtitle.cpp	2015-04-24 09:37:49.000000000 -0600
+++ b/util/mp4subtitle.cpp	2019-09-24 12:33:53.739773682 -0600
@@ -165,25 +165,25 @@ SubtitleUtility::utility_option( int cod
     handled = true;
 
     switch( code ) {
-        case LC_LIST:
+        case int(LC_LIST):
             _action = &SubtitleUtility::actionList;
             break;
 
-        case LC_EXPORT:
+        case int(LC_EXPORT):
             _action = &SubtitleUtility::actionExport;
             _stTextFile = prog::optarg;
             if( _stTextFile.empty() )
                 return herrf( "invalid TXT file: empty-string\n" );
             break;
 
-        case LC_IMPORT:
+        case int(LC_IMPORT):
             _action = &SubtitleUtility::actionImport;
             _stTextFile = prog::optarg;
             if( _stTextFile.empty() )
                 return herrf( "invalid TXT file: empty-string\n" );
             break;
 
-        case LC_REMOVE:
+        case int(LC_REMOVE):
             _action = &SubtitleUtility::actionRemove;
             break;
 
diff -Nrup a/util/mp4track.cpp b/util/mp4track.cpp
--- a/util/mp4track.cpp	2015-04-24 09:37:49.000000000 -0600
+++ b/util/mp4track.cpp	2019-09-24 12:37:02.934815918 -0600
@@ -789,11 +789,11 @@ TrackUtility::utility_option( int code,
     handled = true;
 
     switch( code ) {
-        case LC_TRACK_WILDCARD:
+        case int(LC_TRACK_WILDCARD):
             _trackMode = TM_WILDCARD;
             break;
 
-        case LC_TRACK_INDEX:
+        case int(LC_TRACK_INDEX):
         {
             _trackMode = TM_INDEX;
             istringstream iss( prog::optarg );
@@ -803,7 +803,7 @@ TrackUtility::utility_option( int code,
             break;
         }
 
-        case LC_TRACK_ID:
+        case int(LC_TRACK_ID):
         {
             _trackMode = TM_ID;
             istringstream iss( prog::optarg );
@@ -813,142 +813,142 @@ TrackUtility::utility_option( int code,
             break;
         }
 
-        case LC_LIST:
+        case int(LC_LIST):
             _action = &TrackUtility::actionList;
             break;
 
-        case LC_COLR_PARMS:
+        case int(LC_COLR_PARMS):
             _colorParameterItem.convertFromCSV( prog::optarg );
             break;
 
-        case LC_COLR_PARM_HD:
+        case int(LC_COLR_PARM_HD):
             _colorParameterItem.primariesIndex        = 1;
             _colorParameterItem.transferFunctionIndex = 1;
             _colorParameterItem.matrixIndex           = 1;
             break;
 
-        case LC_COLR_PARM_SD:
+        case int(LC_COLR_PARM_SD):
             _colorParameterItem.primariesIndex        = 6;
             _colorParameterItem.transferFunctionIndex = 1;
             _colorParameterItem.matrixIndex           = 6;
             break;
 
-        case LC_COLR_LIST:
+        case int(LC_COLR_LIST):
             _action = &TrackUtility::actionColorParameterList;
             break;
 
-        case LC_ENABLED:
+        case int(LC_ENABLED):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setEnabled;
             _actionTrackModifierSet_name     = "enabled";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_INMOVIE:
+        case int(LC_INMOVIE):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setInMovie;
             _actionTrackModifierSet_name     = "inMovie";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_INPREVIEW:
+        case int(LC_INPREVIEW):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setInPreview;
             _actionTrackModifierSet_name     = "inPreview";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_LAYER:
+        case int(LC_LAYER):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setLayer;
             _actionTrackModifierSet_name     = "layer";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_ALTGROUP:
+        case int(LC_ALTGROUP):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setAlternateGroup;
             _actionTrackModifierSet_name     = "alternateGroup";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_VOLUME:
+        case int(LC_VOLUME):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setVolume;
             _actionTrackModifierSet_name     = "volume";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_WIDTH:
+        case int(LC_WIDTH):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setWidth;
             _actionTrackModifierSet_name     = "width";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_HEIGHT:
+        case int(LC_HEIGHT):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setHeight;
             _actionTrackModifierSet_name     = "height";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_LANGUAGE:
+        case int(LC_LANGUAGE):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setLanguage;
             _actionTrackModifierSet_name     = "language";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_HDLRNAME:
+        case int(LC_HDLRNAME):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setHandlerName;
             _actionTrackModifierSet_name     = "handlerName";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_UDTANAME:
+        case int(LC_UDTANAME):
             _action = &TrackUtility::actionTrackModifierSet;
             _actionTrackModifierSet_function = &TrackModifier::setUserDataName;
             _actionTrackModifierSet_name     = "userDataName";
             _actionTrackModifierSet_value    = prog::optarg;
             break;
 
-        case LC_UDTANAME_R:
+        case int(LC_UDTANAME_R):
             _action = &TrackUtility::actionTrackModifierRemove;
             _actionTrackModifierRemove_function = &TrackModifier::removeUserDataName;
             _actionTrackModifierRemove_name     = "userDataName";
             break;
 
-        case LC_COLR_ADD:
+        case int(LC_COLR_ADD):
             _action = &TrackUtility::actionColorParameterAdd;
             break;
 
-        case LC_COLR_SET:
+        case int(LC_COLR_SET):
             _action = &TrackUtility::actionColorParameterSet;
             break;
 
-        case LC_COLR_REMOVE:
+        case int(LC_COLR_REMOVE):
             _action = &TrackUtility::actionColorParameterRemove;
             break;
 
-        case LC_PASP_PARMS:
+        case int(LC_PASP_PARMS):
             _pictureAspectRatioItem.convertFromCSV( prog::optarg );
             break;
 
-        case LC_PASP_LIST:
+        case int(LC_PASP_LIST):
             _action = &TrackUtility::actionPictureAspectRatioList;
             break;
 
-        case LC_PASP_ADD:
+        case int(LC_PASP_ADD):
             _action = &TrackUtility::actionPictureAspectRatioAdd;
             break;
 
-        case LC_PASP_SET:
+        case int(LC_PASP_SET):
             _action = &TrackUtility::actionPictureAspectRatioSet;
             break;
 
-        case LC_PASP_REMOVE:
+        case int(LC_PASP_REMOVE):
             _action = &TrackUtility::actionPictureAspectRatioRemove;
             break;