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Re: debugging SIGSEV on pclose


On 2011-09-05 PM 9:20, Marco atzeri wrote:
command=0x207e969c "/usr/bin/gs -dQUIET -dNOPAUSE -dBATCH -dSAFER
-sDEVICE=png16m -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r150x150
-dEPSCrop -sOutputFile=fltk.png -", in_type=0x1a45b18 "w")
at /pub/cygwin/cvs/src_new/winsup/cygwin/syscalls.cc:3920
3920 {
as far as i know, -dTextAlphaBits=4 -dGraphicsAlphaBits=4 make gs crash. because if textalphabits is used, apple-patented font hinting is needed.(although freetype library implemented alternative hinting, it doesn't migrated to gs.) so gs calls THROW_PATENTED which uses longjmp(yet i can't make sure why it crashed instead of showing error message), there is bug report regarding to this issue(but not for this sigsegv). http://www.ghostscript.com/pipermail/gs-bugs/2009-November/010447.html
i think it would be okay if you remove textalphabits when invoking gs



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