[Bug 226519] [patch] japanese/font-mona: Cannot use the font files with the latest x11-fonts/libXfont

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226519

            Bug ID: 226519
           Summary: [patch] japanese/font-mona: Cannot use the font files
                    with the latest x11-fonts/libXfont
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: freebsd-ports-bugs at FreeBSD.org
          Reporter: CQG00620 at nifty.ne.jp
                CC: nobutaka at FreeBSD.org, x11 at FreeBSD.org
                CC: nobutaka at FreeBSD.org, x11 at FreeBSD.org

As described in bug #225125, japanese/font-mona has not been usable
since the latest update of x11-fonts/libXfont (CVE-2017-16611).

Because japanese/font-mona installs font files as symbolic links,
and the latest x11-fonts/libXfont does not handle other than regular
font files.

* How to repeat
** Without the patch

 $ pkg info --show-name-only libXfont
 libXfont-1.5.4,2                       # > 1.5.2,2
 $ pkg install ja-font-mona
 $ xset fp rehash
 $ xlsfonts -fn monak12
 monak12
 $ xlsfonts -ll -fn monak12
 xlsfonts:  unable to get info about font "monak12"
 $ 

** With the patch

 $ xset fp+ /usr/local/share/fonts/mona
 $ xlsfonts -fn monak12
 monak12
 $ xlsfonts -ll -fn monak12
 name:  monak12
   direction:            left to right
   indexing:             matrix
   rows:                 0x21 thru 0x7c (33 thru 124)
   columns:              0x21 thru 0x7e (33 thru 126)
   all chars exist:      no
   default char:         0x2126 (8486)
   ascent:               10
   descent:              2
   font type:            Proportional (min and max widths not equal)
   bounds:               width left  right  asc  desc   attr   keysym
         min                3     0     3    10     2  0x0000
         max               12     0    12    10     2  0x0000
   properties:           22
       FONTNAME_REGISTRY     
       FOUNDRY               Mona
       FAMILY_NAME           Gothic
       WEIGHT_NAME           Medium
       SLANT                 R
       SETWIDTH_NAME         Normal
       ADD_STYLE_NAME        
       PIXEL_SIZE            12
       POINT_SIZE            110
       RESOLUTION_X          75
       RESOLUTION_Y          75
       SPACING               P
       AVERAGE_WIDTH         120
       CHARSET_REGISTRY      JISX0208.1990
       CHARSET_ENCODING      0
       COPYRIGHT             Public Domain
       _XMBDFED_INFO         499
       FONT                 
-Mona-Gothic-Medium-R-Normal--12-110-75-75-P-120-JISX0208.1990-0
       WEIGHT                10
       RESOLUTION            103
       X_HEIGHT              10
       QUAD_WIDTH            7

 $ 

* How to fix

(1) Install font files to ${FONTSDIR} instead of ${DATADIR}.
(2) Stop to make symbolic links from the font files to 
    ${PREFIX}/share/fonts/misc/, which is found in the default font path.
(3) Add pkg-message.in to display additional font path settings
    (Copied from head/japanese/k10, r397891 with typo fix).

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