compiler warnings on the buildfarm

seeing some of the latest commits about fixing compiler warnings I took
a look at the buildfarm to see if there are any interesting ones there
(in total we have a thousends of warnings on the buildfarm but most of
those are from very noisy compilers).

so in case anybody is interested those are a selection of the ones that
at least look somewhat interesting(duplicates mostly removed, windows
ignored):

animal: grebe
Snapshot: 2012-07-01 150224
scan.c: In function 'yy_try_NUL_trans':
scan.c:16243: warning: unused variable 'yyg'
auth.c: In function 'auth_peer':
auth.c:1775: warning: implicit declaration of function 'getpeereid'
ip.c: In function 'getaddrinfo_unix':
ip.c:228: warning: large integer implicitly truncated to unsigned type
Extra instructions are being generated for each reference to a TOC
symbol if the symbol is in the TOC overflow area.
fe-connect.c: In function 'PQconnectPoll':
fe-connect.c:1913: warning: implicit declaration of function 'getpeereid'
ip.c: In function 'getaddrinfo_unix':
ip.c:228: warning: large integer implicitly truncated to unsigned type

animal: spoonbill
Snapshot: 2012-07-01 110005
tuptoaster.c: In function 'heap_tuple_untoast_attr_slice':
tuptoaster.c:198: warning: array size (1) smaller than bound length (16)
tuptoaster.c:198: warning: array size (1) smaller than bound length (16)
tuptoaster.c: In function 'toast_raw_datum_size':
tuptoaster.c:275: warning: array size (1) smaller than bound length (16)
tuptoaster.c:275: warning: array size (1) smaller than bound length (16)
tuptoaster.c: In function 'toast_datum_size':
tuptoaster.c:320: warning: array size (1) smaller than bound length (16)
tuptoaster.c:320: warning: array size (1) smaller than bound length (16)
tuptoaster.c: In function 'toast_save_datum':
tuptoaster.c:1344: warning: array size (1) smaller than bound length (16)
tuptoaster.c:1344: warning: array size (1) smaller than bound length (16)
tuptoaster.c:1458: warning: array size (1) smaller than bound length (16)
tuptoaster.c:1458: warning: array size (1) smaller than bound length (16)
tuptoaster.c: In function 'toast_delete_datum':
tuptoaster.c:1485: warning: array size (1) smaller than bound length (16)
tuptoaster.c:1485: warning: array size (1) smaller than bound length (16)
tuptoaster.c: In function 'toast_fetch_datum':
tuptoaster.c:1610: warning: array size (1) smaller than bound length (16)
tuptoaster.c:1610: warning: array size (1) smaller than bound length (16)
tuptoaster.c: In function 'toast_fetch_datum_slice':
tuptoaster.c:1779: warning: array size (1) smaller than bound length (16)
tuptoaster.c:1779: warning: array size (1) smaller than bound length (16)
relmapper.c: In function 'relmap_redo':
relmapper.c:876: warning: array size (1) smaller than bound length (512)
relmapper.c:876: warning: array size (1) smaller than bound length (512)
elog.c: In function 'write_pipe_chunks':
elog.c:2541: warning: array size (1) smaller than bound length (503)
elog.c:2541: warning: array size (1) smaller than bound length (503)

animal: jaguarundi
Snapshot: 2012-07-01 031500
plpy_exec.c: In function 'PLy_procedure_call':
plpy_exec.c:818: warning: null format string

animal: rover_firefly
Snapshot: 2012-07-01 030400
float.c: In function 'is_infinite':
float.c:167:2: warning: implicit declaration of function 'isinf'
[-Wimplicit-function-declaration]
geo_ops.c: In function 'pg_hypot':
geo_ops.c:5455:2: warning: implicit declaration of function 'isinf'
[-Wimplicit-function-declaration]
execute.c: In function 'sprintf_double_value':
execute.c:473:2: warning: implicit declaration of function 'isinf'
[-Wimplicit-function-declaration]

animal: nightjar
Snapshot: 2012-07-01 023700
In file included from
/usr/home/andrew/bf/root/HEAD/pgsql.66715/../pgsql/src/backend/parser/gram.y:13338:
scan.c: In function 'yy_try_NUL_trans':
scan.c:16243: warning: unused variable 'yyg'
/usr/home/andrew/bf/root/HEAD/pgsql.66715/../pgsql/src/pl/plpython/plpy_exec.c:
In function 'PLy_procedure_call':
/usr/home/andrew/bf/root/HEAD/pgsql.66715/../pgsql/src/pl/plpython/plpy_exec.c:818:
warning: null format string
/usr/home/andrew/bf/root/HEAD/pgsql.66715/../pgsql/src/pl/tcl/pltcl.c:
In function '_PG_init':
/usr/home/andrew/bf/root/HEAD/pgsql.66715/../pgsql/src/pl/tcl/pltcl.c:343:
warning: assignment from incompatible pointer type
/usr/home/andrew/bf/root/HEAD/pgsql.66715/../pgsql/src/pl/tcl/pltcl.c:344:
warning: assignment from incompatible pointer type

animal: locust
Snapshot: 2012-07-01 023122
xlog.c: In function 'StartupXLOG':
xlog.c:5988: warning: 'checkPointLoc' may be used uninitialized in this
function
pgstat.c: In function 'pgstat_report_activity':
pgstat.c:2538: warning: passing argument 1 of
'__dtrace_probe$postgresql$statement__status$v1$63686172202a' discards
qualifiers from pointer target type
In file included from repl_gram.y:172:
postgres.c: In function 'pg_parse_query':
postgres.c:559: warning: passing argument 1 of
'__dtrace_probe$postgresql$query__parse__start$v1$63686172202a' discards
qualifiers from pointer target type
postgres.c:582: warning: passing argument 1 of
'__dtrace_probe$postgresql$query__parse__done$v1$63686172202a' discards
qualifiers from pointer target type
postgres.c: In function 'pg_analyze_and_rewrite':
postgres.c:603: warning: passing argument 1 of
'__dtrace_probe$postgresql$query__rewrite__start$v1$63686172202a'
discards qualifiers from pointer target type
postgres.c:621: warning: passing argument 1 of
'__dtrace_probe$postgresql$query__rewrite__done$v1$63686172202a'
discards qualifiers from pointer target type
postgres.c: In function 'pg_analyze_and_rewrite_params':
postgres.c:643: warning: passing argument 1 of
'__dtrace_probe$postgresql$query__rewrite__start$v1$63686172202a'
discards qualifiers from pointer target type
postgres.c:670: warning: passing argument 1 of
'__dtrace_probe$postgresql$query__rewrite__done$v1$63686172202a'
discards qualifiers from pointer target type
postgres.c: In function 'exec_simple_query':
postgres.c:845: warning: passing argument 1 of
'__dtrace_probe$postgresql$query__start$v1$63686172202a' discards
qualifiers from pointer target type
postgres.c:1136: warning: passing argument 1 of
'__dtrace_probe$postgresql$query__done$v1$63686172202a' discards
qualifiers from pointer target type
data.c: In function 'ecpg_get_data':
data.c:288: warning: 'dres' may be used uninitialized in this function

Stefan