[Bug 30755] New: gdiplus tests fail if stix fonts present

http://bugs.winehq.org/show_bug.cgi?id=30755

Bug #: 30755
           Summary: gdiplus tests fail if stix fonts present
           Product: Wine
           Version: 1.5.4
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

On Centos 6, "make test" causes (among others) the failures

runtest -q -P wine -M gdiplus.dll -T ../../.. -p gdiplus_test.exe.so
~/wine-git/dlls/gdiplus/tests/font.c && touch font.ok
...
font.c:396: Test failed: Expected 0, got 3
font.c:397: Test failed: got NULL font collection
make[1]: *** [font.ok] Error 2
/home/dank/wine-git/tools/runtest -q -P wine -M gdiplus.dll -T ../../.. -p
gdiplus_test.exe.so /home/dank/wine-git/dlls/gdiplus/tests/graphics.c && touch
graphics.ok
...
graphics.c:1978: Test failed: Expected 00000000, got 00000010
Unhandled exception: page fault on read access to 0x00000048 in 32-bit code
(0x6834d776).
Backtrace:
=>0 0x6834d776 get_log_fontW+0x16() in gdiplus (0x0032f8c8)
  1 0x68358d57 get_font_hfont+0xf6() in gdiplus (0x0032f9f8)
  2 0x6835d1cd GdipDrawString+0x26c() in gdiplus (0x0032fb78)
  3 0x71cb8763 test_GdipDrawString+0x232() in gdiplus_test (0x0032fc38)
  4 0x71cc5c45 func_graphics+0xb84() in gdiplus_test (0x0032fd18)
...

Looks like
 GdipNewInstalledFontCollection() which calls
 EnumFontFamiliesExW() which calls
 add_font_proc() which calls
 GdipCreateFontFamilyFromName()
and is failing because the latter function somehow chokes on the stix fonts
(http://stixfonts.org) bundled with centos 6.

Doing
  sudo chmod 000 /usr/share/fonts/stix
works around the problem.