From http://bugs.gentoo.org/show_bug.cgi?id=214451

i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../.. -I../../gst-libs
-I../../gst-libs -pthread -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0
-I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -Wall -g -ggdb -O1 -O2 -O3
-pipe -march=athlon-xp -mmmx -msse -m3dnow -MT
libgstneonhttpsrc_la-gstneonhttpsrc.lo -MD -MP -MF
.deps/libgstneonhttpsrc_la-gstneonhttpsrc.Tpo -c gstneonhttpsrc.c  -fPIC -DPIC
-o .libs/libgstneonhttpsrc_la-gstneonhttpsrc.o
In file included from gstneonhttpsrc.c:21:
gstneonhttpsrc.h:24: error: ne_session.h: No such file or directory
gstneonhttpsrc.h:24: error: ne_request.h: No such file or directory
gstneonhttpsrc.h:24: error: ne_socket.h: No such file or directory
gstneonhttpsrc.h:48: error: expected specifier-qualifier-list before
'ne_session'
gstneonhttpsrc.c:24: error: ne_redirect.h: No such file or directory
gstneonhttpsrc.c:106: error: expected declaration specifiers or '...' before
'ne_session'
gstneonhttpsrc.c:106: error: expected declaration specifiers or '...' before
'ne_request'
...
distcc[11520] ERROR: compile gstneonhttpsrc.c on localhost failed
make: *** [libgstneonhttpsrc_la-gstneonhttpsrc.lo] Error 1