Bug 4155

poppler 0.4.0, compiled against cairo 0.9.2 segfaults for every single pdf file
here:
arwed@Otherland:~/poppler-0.4.0/test$ gdb .libs/lt-gtk-cairo-test 
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This GDB was configured as "i686-pc-linux-gnu"...Using host libthread_db library
"/lib/libthread_db.so.1".

(gdb) run ~/afrika.pdf 
Starting program: /home/arwed/poppler-0.4.0/test/.libs/lt-gtk-cairo-test
~/afrika.pdf

Program received signal SIGSEGV, Segmentation fault.
0xb7a9cca4 in _cairo_hash_string () from /usr/lib/libcairo.so.2
(gdb) bt
#0  0xb7a9cca4 in _cairo_hash_string () from /usr/lib/libcairo.so.2
#1  0xb7aaa8db in _cairo_ft_unscaled_font_init_key ()
   from /usr/lib/libcairo.so.2
#2  0xb7aaa923 in _cairo_ft_unscaled_font_init () from /usr/lib/libcairo.so.2
#3  0xb7aad003 in cairo_ft_font_face_create_for_ft_face ()
   from /usr/lib/libcairo.so.2
#4  0xb7f19b81 in CairoFont (this=0x80c8318, gfxFont=0x80fb490, 
    xref=0x80f6ff0, lib=0x80ab2e0) at CairoFontEngine.cc:252
#5  0xb7f1a35a in CairoFontEngine::getFont (this=0x80b18f0, gfxFont=0x80b7380, 
    xref=0x80f6ff0) at CairoFontEngine.cc:381
#6  0xb7f1aca4 in CairoOutputDev::updateFont (this=0x80ab1e0, state=0x80c8560)
    at GfxState.h:924
#7  0xb7f33321 in Gfx::doShowText (this=0x80b6c70, s=0x80c8dc8) at Gfx.cc:2320
#8  0xb7f334a8 in Gfx::opShowSpaceText (this=0x80b6c70, args=0x80f6ff0, 
    numArgs=1) at Object.h:148
#9  0xb7f2c0d6 in Gfx::execOp (this=0x80b6c70, cmd=0x80f6ff0, args=0xbffff2f0, 
    numArgs=1) at Gfx.cc:660
#10 0xb7f2c2b6 in Gfx::go (this=0x80b6c70, topLevel=1) at Gfx.cc:551
#11 0xb7f2c6e6 in Gfx::display (this=0x80b6c70, obj=0xbffff430, 
    topLevel=135229424) at Gfx.cc:523
#12 0xb7f6d8b6 in Page::displaySlice (this=0x80b5098, out=0x80ab1e0, hDPI=0, 
    vDPI=0, rotate=135229424, crop=135229424, sliceX=135229424, 
    sliceY=135229424, sliceW=135229424, sliceH=135229424, links=0x80b1480, 
    catalog=0x80b1880, abortCheckCbk=0x80f6ff0, abortCheckCbkData=0x80f6ff0, 
    annotDisplayDecideCbk=0x80f6ff0, annotDisplayDecideCbkData=0x80f6ff0)
    at Page.cc:364
#13 0xb7f6d97e in Page::display (this=0x80f6ff0, out=0x80f6ff0, hDPI=0, 
    vDPI=0, rotate=135229424, crop=135229424, links=0x80f6ff0, 
    catalog=0x80f6ff0, abortCheckCbk=0x80f6ff0, abortCheckCbkData=0x80f6ff0, 
    annotDisplayDecideCbk=0x80f6ff0, annotDisplayDecideCbkData=0x80f6ff0)
    at Page.cc:249
#14 0xb7f6fa9e in PDFDoc::displayPage (this=0x80b14b0, out=0x80ab1e0, page=0, 
    hDPI=72, vDPI=72, rotate=0, crop=1, doLinks=1, abortCheckCbk=0, 
    abortCheckCbkData=0x0, annotDisplayDecideCbk=0, 
    annotDisplayDecideCbkData=0x0) at PDFDoc.cc:265
#15 0x0804ac98 in main (argc=2, argv=0xbffff604) at gtk-cairo-test.cc:202