Darktable-0.9.1 with rawspeed disabled does broken images in darkroom and export.
I can't use darktable with rawspeed backend as I'm Pentax K-x user.
Darktable with rawspeed makes my images in magenta.
I have to build darktable with -DDONT_USE_RAWSPEED.
Pictures look really fine, but... when I go back to lighttable:
1. I can't swith to darkroom (cpu 100% + broken magenta garbage)
2. I can't export any image (broken magenta garbage)
3. Sometimes dt segfaults on this step.
Build dt, open, open image in dark room (select and press 'd'), exit from darkroom (press 'l'), try to enter again (press 'd').