Crash when saving as XAML or FXG

[jazzynico]

Inkscape crashes when saving a non empty document to XAML or FXG, Inkscape.

Reproduced on Windows XP, Inkscape revision 10785->11551.
Not reproduced on Windows XP, Inkscape revision 10568.
Not reproduced on Debian testing, Inkscape revision 11551.

(gdb) bt
#0 0x77c17a6f in strncmp () from C:\WINDOWS\system32\msvcrt.dll
#1 0x6ac6fc4e in __xmlParserInputBufferCreateFilename () from D:\Inkscape\inkscape-10785\inkscape\libxml2.dll
#2 0x6ac3d06a in xmlNewInputFromFile () from D:\Inkscape\inkscape-10785\inkscape\libxml2.dll
#3 0x6ac279b0 in xmlCreateURLParserCtxt () from D:\Inkscape\inkscape-10785\inkscape\libxml2.dll
#4 0x6ac27a45 in xmlCreateFileParserCtxt () from D:\Inkscape\inkscape-10785\inkscape\libxml2.dll
#5 0x6ac3bf13 in xmlSAXParseFileWithData () from D:\Inkscape\inkscape-10785\inkscape\libxml2.dll
#6 0x6ac3c013 in xmlSAXParseFile () from D:\Inkscape\inkscape-10785\inkscape\libxml2.dll
#7 0x6ac3c05d in xmlParseFile () from D:\Inkscape\inkscape-10785\inkscape\libxml2.dll
#8 0x005e8db9 in _fu687___ZNSs4_Rep20_S_empty_rep_storageE ()
#9 0x05785b2c in ?? ()
#10 0x05785b2c in ?? ()
#11 0x00cd0bc0 in Inkscape::Extension::Implementation::Script::execute(std::list<std::string, std::allocator<std::string> > const&, std::list<std::string, std::allocator<std::string> > const&, Glib::ustring const&, Inkscape::Extension::Implementation::Script::file_listener&)::__PRETTY_FUNCTION__ ()

[su_v (suv-lp)]

> Not reproduced on Debian testing, Inkscape revision 11551.

Not reproduced on OS X 10.7.4, Inkscape 0.48+devel r11552

[jazzynico (jazzynico)]

Updating the xml2 library (libxml2.dll) from 2.7.7 to 2.8 (with the binary found at ftp://ftp.zlatkovic.com/pub/libxml/) fixes the issue.
Note that the xml2 and xslt libraries available in the opensuse repository are a bit more recent (xml2 2.8), but requires some extra changes in the devlibs. To be tested!

[jazzynico (jazzynico)]

> from 2.7.7 to 2.8

Correction: from 2.7.7 to 2.7.8.

[jazzynico (jazzynico)]

Tested successfully with the libs from http://download.opensuse.org/repositories/windows:/mingw:/win32/openSUSE_12.1/noarch/

 libxml2-2.8.0-1.3
 libxslt-1.1.26-8.22

[jazzynico (jazzynico)]

Unfortunately, the opensuse libs are linked to some extra libs (libgcrypt11 and others) when exslt is enabled in src/extensions/implementation/script.cpp (it's not in the current trunk, but would improve the XAML and FXG exports) and thus using the official Windows build looks safer.

Suggested versions (from ftp://ftp.zlatkovic.com/pub/libxml/):
 libxml2-2.7.8
 libxslt-1.1.26

[jazzynico (jazzynico)]

XML and XSLT libs updated, devlibs r32.