http://www.hpl.hp.com/research/linux/libunwind/download.php4
+ On Solaris, make sure that you used GNU tar to unpack this package, as
+ Solaris tar will not unpack this correctly, and you will get strange errors.
+
+ On Solaris, make sure that you use the GNU toolchain to build the software.
+
Optional dependencies:
* libgdiplus