Build error with pre-0.9.9-50 when setting SLRN_HAS_PULL_SUPPORT

Build error on pre-0.9.9-50 under Slackware 11.0.  Build fine as
downloaded, but fails when I set SLRN_HAS_PULL_SUPPORT.

./slrn-pre0.9.9-50/src/server.c
./slrn-pre0.9.9-50/src/server.c: In function `pull_select_post_object':
./slrn-pre0.9.9-50/src/server.c:673: error: `Slrn_Inn_Root' undeclared
(first use in this function)
./slrn-pre0.9.9-50/src/server.c:673: error: (Each undeclared
identifier is reported only once
./slrn-pre0.9.9-50/src/server.c:673: error: for each function it appears in.)
make[1]: *** [./slrn-pre0.9.9-50/src/objs/server.o] Error 1
make[1]: Leaving directory `./slrn-pre0.9.9-50/src'
make: *** [all] Error 2

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