liblzma.tcz - xz.tcz

[bmarkus]

Now liblzma.tcz is separated from xz.tcz and available in the repo. Extensions depending on xz.tcz are depending on liblzma.tcz in fact, extension builders please update .dep files.

If you experience problems with an extension, update your dep files and install liblzma.tcz

[Juanito]

libxml2 dep files adjusted