Hi,
I wanted to compile Inkscape form SVN the other day but compilation failed because the pdfinput plugin required the header file "CairoOutputDev.h". This header belongs to poppler but for some reason it doesn't install it. I then figured out that I hadn't actually compiled poppler with cairo output support, and was sure that recompiling it with that option enabled would solve it, but as it turns out, it didn't.
I got Inkscape to compile only after I manually copied over the Cairo*.h headers from the Poppler source archive to /usr/include/poppler.
It seems to me that after looking at the Makefile.am file (I don't know much about autotools though), this header isn't ever installed at all. Is this an error of Inkscape to depend on this header or is there something wrong with Poppler?