[PATCH 0/3] Reduce registry.c resource usage

[Keith Packard]

 [PATCH 1/3] test: Only build hashtable tests if building X-Resource

This fixes a build problem in the test code when compiling with
--disable-xres

 [PATCH 2/3] dix: Close protocol.txt after we're done loading

This one stops a file descriptor from being left open for the whole X
server run by simply closing the file full of protocol names after it
has been read.

 [PATCH 3/3] Build required portions of registry.c automatically

This one makes the two bits of the registry depend on the related
extensions (X-Resource and XCSECURITY) rather than being separately
configured.

-keith