Warnings in CVS build

Some warnings in current CVS build in BSD4.3:

xact.c:590: warning: implicit declaration of function `select'
dynloader.c:85: warning: unused variable `buf'
/usr/include/grp.h:58: warning: parameter names (without types) in function
declaration
pgc.c:1244: warning: label `find_rule' defined but not used
pgc.c:3091: warning: `yy_flex_realloc' defined but not used
odbcapi.c:140: warning: no previous prototype for `SQLDataSources'
pg_restore.c:166: warning: implicit declaration of function `getopt'
pl_scan.c:1004: warning: label `find_rule' defined but not used
pl_scan.c:2295: warning: `yy_flex_realloc' defined but not used

Also some odd tsort messages. eg.

"/usr/local/pgsql-7.2dev/etc"' -c -o pqsignal.o pqsignal.c
ar cr libpq.a `lorder fe-auth.o fe-connect.o fe-exec.o fe-misc.o fe-print.o
fe-lobj.o pqexpbuffer.o dllist.o md5.o pqsignal.o | tsor
t`
tsort: cycle in data
tsort: fe-connect.o
tsort: fe-exec.o
tsort: cycle in data
tsort: fe-auth.o
tsort: fe-connect.o

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