[MacPorts] #41655: segmentation fault loading font

[MacPorts]

#41655: segmentation fault loading font
------------------------------+--------------------------------
 Reporter:  Martin.vGagern@…  |      Owner:  macports-tickets@…
     Type:  defect            |     Status:  new
 Priority:  Normal            |  Milestone:
Component:  ports             |    Version:  2.2.1
 Keywords:                    |       Port:  freetype
------------------------------+--------------------------------
 `fc-list Helvetica` crashes on me with a single error line mentioning
 `Segmentation fault: 11`. Running this through `gdb --args` I get the
 following backtrace:

 {{{
 Program received signal EXC_BAD_ACCESS, Could not access memory.
 Reason: KERN_INVALID_ADDRESS at address: 0x00000000000002b0
 0x0000000100056a65 in TT_Load_Simple_Glyph ()
 (gdb) bt
 #0  0x0000000100056a65 in TT_Load_Simple_Glyph ()
 #1  0x000000010005871c in load_truetype_glyph ()
 #2  0x00000001000512a5 in tt_glyph_load ()
 #3  0x0000000100042b68 in FT_Load_Glyph ()
 #4  0x00000001000130de in FcFreeTypeCheckGlyph ()
 #5  0x000000010001265c in FcFreeTypeCharSetAndSpacingForSize ()
 #6  0x0000000100011c64 in FcFreeTypeQueryFace ()
 #7  0x00000001000121d3 in FcFreeTypeQuery ()
 #8  0x000000010000e9cf in FcFileScanConfig ()
 #9  0x000000010000ec4a in FcDirScanConfig ()
 #10 0x000000010000ed91 in FcDirCacheScan ()
 #11 0x000000010000905e in FcConfigAddDirList ()
 #12 0x0000000100008f83 in FcConfigBuildFonts ()
 #13 0x0000000100013d26 in FcInitLoadOwnConfigAndFonts ()
 #14 0x0000000100008830 in FcConfigEnsure ()
 #15 0x0000000100013d91 in FcInitBringUptoDate ()
 #16 0x00000001000160d2 in FcFontList ()
 #17 0x00000001000019bb in main ()
 }}}

 Trying to associate the above function list to ports installing the
 corresponding libraries, I obtained the following list (which might be
 incomplete):

 {{{
 The following ports are currently installed:
   fontconfig @2.11.0_0 (active)
   freetype @2.5.1_0 (active)
 }}}

 Originally I found this problem with graphviz dot, but this approach via
 `fc-list` should be much easier to reproduce and diagnose.

-- 
Ticket URL: <https://trac.macports.org/ticket/41655>
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