Let -as mkisofs --zisofs-version-2 imply -z

xorriso/emulators.c

@@ -1610,6 +1610,7 @@ int Xorriso_genisofs(struct XorrisO *xorriso, char *whom,
      ret= Xorriso_option_zisofs(xorriso, "version_2=as_needed", 0);
      if(ret <= 0)
        goto problem_handler_1;
+     Xorriso_option_zisofs(xorriso, "by_magic=on", 0);
    } else if(strcmp(argpt, "--stdio_sync")==0) {
      if(i+1>=argc)
        goto not_enough_args;

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2020.10.14.210148"
+#define Xorriso_timestamP "2020.10.16.091750"

xorriso/xorrisofs.1

@@ -277,6 +277,8 @@ and will complain like
 .br
 The files will then appear as they were submitted to xorriso, i.e. with zisofs2
 header, block pointer list, and compressed data.
+.br
+\-\-zisofs\-version\-2 also enables \-z.
 .TP
 \fB\-root\fR iso_rr_path
 Insert all files under the given iso_rr_path. If option \-graft\-points is given,

xorriso/xorrisofs.info

@@ -277,6 +277,7 @@ File: xorrisofs.info,  Node: SetInsert,  Next: SetProduct,  Prev: Loading,  Up:
      isofs: Unknown ZF compression algorithm: PZ
      The files will then appear as they were submitted to xorriso, i.e.
      with zisofs2 header, block pointer list, and compressed data.
+     -zisofs-version-2 also enables -z.
 -root iso_rr_path
      Insert all files under the given iso_rr_path.  If option
      -graft-points is given, then iso_rr_path is prepended to each
@@ -2002,10 +2003,10 @@ File: xorrisofs.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: T
 * --old-empty old block addresses for empty files: SetProduct.
                                                               (line 105)
 * --old-root-devno enable disk idevno with -old-root: SetInsert.
-                                                              (line  92)
+                                                              (line  93)
 * --old-root-no-ino disable disk ino with -old-root: SetInsert.
-                                                              (line  81)
-* --old-root-no-md5 disable MD5 with -old-root: SetInsert.    (line  99)
+                                                              (line  82)
+* --old-root-no-md5 disable MD5 with -old-root: SetInsert.    (line 100)
 * --protective-msdos-label Patch System Area partition table: SystemArea.
                                                               (line 143)
 * --quoted_path_list read pathspecs from disk file: SetInsert.
@@ -2154,7 +2155,7 @@ File: xorrisofs.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: T
 * -no-pad do not add zeros to ISO tree:  SetProduct.          (line 101)
 * -o set output file address:            SetProduct.          (line   8)
 * -old-exclude exclude disk files from inserting: SetInsert.  (line  42)
-* -old-root enable incremental insertion: SetInsert.          (line  68)
+* -old-root enable incremental insertion: SetInsert.          (line  69)
 * -omit-period omit trailing dot in ISO file names: SetCompl. (line  54)
 * -omit-version-number omit version number in ISO file names: SetCompl.
                                                               (line  69)
@@ -2186,7 +2187,7 @@ File: xorrisofs.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: T
 * -relaxed-filenames 7-bit special characters in ISO file names: SetCompl.
                                                               (line  45)
 * -rock Rock Ridge (is enabled by default): SetExtras.        (line  13)
-* -root redirect ISO root directory:     SetInsert.           (line  63)
+* -root redirect ISO root directory:     SetInsert.           (line  64)
 * -rr_reloc_dir set deep directory relocation target: SetExtras.
                                                               (line  74)
 * -sparc-boot SUN SPARC boot images:     SystemArea.          (line 298)
@@ -2334,12 +2335,12 @@ File: xorrisofs.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Hiding, from Joliet, -hide-joliet-list: SetHide.            (line  22)
 * Image size, alignment, -partition_cyl_align: SystemArea.    (line 186)
 * Incremental insertion, disable disk ino, --old-root-no-ino: SetInsert.
-                                                              (line  81)
+                                                              (line  82)
 * Incremental insertion, disable MD5, --old-root-no-md5: SetInsert.
-                                                              (line  99)
+                                                              (line 100)
 * Incremental insertion, enable disk devno, --old-root-devno: SetInsert.
-                                                              (line  92)
-* Incremental insertion, enable, -old-root: SetInsert.        (line  68)
+                                                              (line  93)
+* Incremental insertion, enable, -old-root: SetInsert.        (line  69)
 * Interval reader for system area and partitions: SystemArea. (line  24)
 * ISO 9660, _definition:                 Standards.           (line   6)
 * ISO 9660:1999, _definition:            Standards.           (line  26)
@@ -2367,7 +2368,7 @@ File: xorrisofs.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
                                                               (line  23)
 * ISO level, specify, -iso-level:        SetCompl.            (line   7)
 * ISO level, specify, -iso-level <1>:    SetCompl.            (line   8)
-* ISO root directory, redirect, -root:   SetInsert.           (line  63)
+* ISO root directory, redirect, -root:   SetInsert.           (line  64)
 * iso_rr_path, _definition:              Insert.              (line   8)
 * Jigdo Template Extraction, -checksum-list: Jigdo.           (line  77)
 * Jigdo Template Extraction, -checksum_algorithm_iso: Jigdo.  (line  86)
@@ -2454,30 +2455,30 @@ Node: Xorriso5616
 Node: Options6762
 Node: Loading7489
 Node: SetInsert9530
-Node: SetProduct14340
-Node: SetCompl19911
-Node: SetExtras22503
-Node: SetHide34112
-Node: ImageId35416
-Node: Bootable39698
-Node: SystemArea45984
-Node: Charset64333
-Node: Jigdo65358
-Node: Miscellaneous70328
-Node: Examples71973
-Node: ExSimple72467
-Node: ExGraft72950
-Node: ExMkisofs74250
-Node: ExGrowisofs76058
-Node: ExIncBackup77248
-Node: ExIncBckAcc80424
-Node: ExBootable82129
-Node: Files86311
-Node: Environ87406
-Node: Seealso88279
-Node: Bugreport88930
-Node: Legal89523
-Node: CommandIdx90420
-Node: ConceptIdx106914
+Node: SetProduct14380
+Node: SetCompl19951
+Node: SetExtras22543
+Node: SetHide34152
+Node: ImageId35456
+Node: Bootable39738
+Node: SystemArea46024
+Node: Charset64373
+Node: Jigdo65398
+Node: Miscellaneous70368
+Node: Examples72013
+Node: ExSimple72507
+Node: ExGraft72990
+Node: ExMkisofs74290
+Node: ExGrowisofs76098
+Node: ExIncBackup77288
+Node: ExIncBckAcc80464
+Node: ExBootable82169
+Node: Files86351
+Node: Environ87446
+Node: Seealso88319
+Node: Bugreport88970
+Node: Legal89563
+Node: CommandIdx90460
+Node: ConceptIdx106954
 
 End Tag Table

xorriso/xorrisofs.texi

@@ -436,6 +436,8 @@ and will complain like
 @*
 The files will then appear as they were submitted to xorriso, i.e. with zisofs2
 header, block pointer list, and compressed data.
+@*
+--zisofs-version-2 also enables -z.
 @c man .TP
 @item -root iso_rr_path
 @kindex -root   redirect ISO root directory