controldata_utils.c:53:29: warning: declaration shadows a variable in the global scope [-Wshadow]
   53 | get_controlfile(const char *DataDir, bool *crc_ok_p)
      |                             ^
../../src/include/miscadmin.h:175:26: note: previous declaration is here
  175 | extern PGDLLIMPORT char *DataDir;
      |                          ^
controldata_utils.c:190:32: warning: declaration shadows a variable in the global scope [-Wshadow]
  190 | update_controlfile(const char *DataDir,
      |                                ^
../../src/include/miscadmin.h:175:26: note: previous declaration is here
  175 | extern PGDLLIMPORT char *DataDir;
      |                          ^
2 warnings generated.
pgtz.c:234:22: warning: declaration shadows a variable in the global scope [-Wshadow]
  234 | pg_tzset(const char *tzname)
      |                      ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
pgtz.c:324:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  324 |         char            tzname[128];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
2 warnings generated.
brin.c:702:16: warning: declaration shadows a local variable [-Wshadow]
  702 |                         FmgrInfo   *tmp;
      |                                     ^
brin.c:594:11: note: previous declaration is here
  594 |         char       *tmp PG_USED_FOR_ASSERTS_ONLY;
      |                     ^
1 warning generated.
gistbuild.c:1161:23: warning: declaration shadows a local variable [-Wshadow]
 1161 |                         GISTPageSplitInfo *splitinfo = lfirst(lc);
      |                                            ^
gistbuild.c:1061:11: note: previous declaration is here
 1061 |         List       *splitinfo;
      |                     ^
1 warning generated.
xlogdesc.c:41:26: warning: declaration shadows a variable in the global scope [-Wshadow]
   41 | get_wal_level_string(int wal_level)
      |                          ^
../../../../src/include/access/xlog.h:98:24: note: previous declaration is here
   98 | extern PGDLLIMPORT int wal_level;
      |                        ^
1 warning generated.
xlogreader.c:108:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  108 | XLogReaderAllocate(int wal_segment_size, const char *waldir,
      |                        ^
../../../../src/include/access/xlog.h:38:24: note: previous declaration is here
   38 | extern PGDLLIMPORT int wal_segment_size;
      |                        ^
1 warning generated.
xlogrecovery.c:1168:13: warning: declaration shadows a variable in the global scope [-Wshadow]
 1168 |                                   bool *backupEndRequired, bool *backupFromStandby)
      |                                         ^
xlogrecovery.c:287:13: note: previous declaration is here
  287 | static bool backupEndRequired = false;
      |             ^
xlogrecovery.c:1880:33: warning: declaration shadows a variable in the global scope [-Wshadow]
 1880 | ApplyWalRecord(XLogReaderState *xlogreader, XLogRecord *record, TimeLineID *replayTLI)
      |                                 ^
xlogrecovery.c:192:25: note: previous declaration is here
  192 | static XLogReaderState *xlogreader = NULL;
      |                         ^
xlogrecovery.c:3105:28: warning: declaration shadows a variable in the global scope [-Wshadow]
 3105 | ReadRecord(XLogPrefetcher *xlogprefetcher, int emode,
      |                            ^
xlogrecovery.c:195:24: note: previous declaration is here
  195 | static XLogPrefetcher *xlogprefetcher = NULL;
      |                        ^
xlogrecovery.c:3109:19: warning: declaration shadows a variable in the global scope [-Wshadow]
 3109 |         XLogReaderState *xlogreader = XLogPrefetcherGetReader(xlogprefetcher);
      |                          ^
xlogrecovery.c:192:25: note: previous declaration is here
  192 | static XLogReaderState *xlogreader = NULL;
      |                         ^
xlogrecovery.c:3274:31: warning: declaration shadows a variable in the global scope [-Wshadow]
 3274 | XLogPageRead(XLogReaderState *xlogreader, XLogRecPtr targetPagePtr, int reqLen,
      |                               ^
xlogrecovery.c:192:25: note: previous declaration is here
  192 | static XLogReaderState *xlogreader = NULL;
      |                         ^
xlogrecovery.c:4057:38: warning: declaration shadows a variable in the global scope [-Wshadow]
 4057 | ReadCheckpointRecord(XLogPrefetcher *xlogprefetcher, XLogRecPtr RecPtr,
      |                                      ^
xlogrecovery.c:195:24: note: previous declaration is here
  195 | static XLogPrefetcher *xlogprefetcher = NULL;
      |                        ^
6 warnings generated.
bootstrap.c:240:11: warning: declaration shadows a variable in the global scope [-Wshadow]
  240 |         char       *progname = argv[0];
      |                     ^
../../../src/include/postmaster/postmaster.h:88:32: note: previous declaration is here
   88 | extern PGDLLIMPORT const char *progname;
      |                                ^
1 warning generated.
objectaddress.c:2239:12: warning: declaration shadows a local variable [-Wshadow]
 2239 |                 bool       *nulls;
      |                             ^
objectaddress.c:2218:8: note: previous declaration is here
 2218 |         bool            nulls[3];
      |                         ^
objectaddress.c:2256:12: warning: declaration shadows a local variable [-Wshadow]
 2256 |                 bool       *nulls;
      |                             ^
objectaddress.c:2218:8: note: previous declaration is here
 2218 |         bool            nulls[3];
      |                         ^
objectaddress.c:2293:12: warning: declaration shadows a local variable [-Wshadow]
 2293 |                 bool       *nulls;
      |                             ^
objectaddress.c:2218:8: note: previous declaration is here
 2218 |         bool            nulls[3];
      |                         ^
3 warnings generated.
pg_constraint.c:864:22: warning: declaration shadows a local variable [-Wshadow]
  864 |                         CookedConstraint *cooked;
      |                                           ^
pg_constraint.c:834:47: note: previous declaration is here
  834 | RelationGetNotNullConstraints(Oid relid, bool cooked, bool include_noinh)
      |                                               ^
1 warning generated.
extension.c:1456:13: warning: declaration shadows a local variable [-Wshadow]
 1456 |                         char       *schemaName = get_namespace_name(reqschema);
      |                                     ^
extension.c:1250:20: note: previous declaration is here
 1250 |                                                  const char *schemaName)
      |                                                              ^
1 warning generated.
schemacmds.c:208:12: warning: declaration shadows a local variable [-Wshadow]
  208 |                 Node       *stmt = (Node *) lfirst(parsetree_item);
      |                             ^
schemacmds.c:52:59: note: previous declaration is here
   52 | CreateSchemaCommand(ParseState *pstate, CreateSchemaStmt *stmt,
      |                                                           ^
1 warning generated.
statscmds.c:352:16: warning: declaration shadows a local variable [-Wshadow]
  352 |                         Bitmapset  *attnums = NULL;
      |                                     ^
statscmds.c:66:9: note: previous declaration is here
   66 |         int16           attnums[STATS_MAX_DIMENSIONS];
      |                         ^
1 warning generated.
tablecmds.c:15965:20: warning: declaration shadows a local variable [-Wshadow]
 15965 |                                 AlterTableCmd *cmd = lfirst_node(AlterTableCmd, lcmd);
       |                                                ^
tablecmds.c:15874:67: note: previous declaration is here
 15874 | ATPostAlterTypeParse(Oid oldId, Oid oldRelId, Oid refRelId, char *cmd,
       |                                                                   ^
tablecmds.c:16036:20: warning: declaration shadows a local variable [-Wshadow]
 16036 |                                 AlterTableCmd *cmd = makeNode(AlterTableCmd);
       |                                                ^
tablecmds.c:15874:67: note: previous declaration is here
 15874 | ATPostAlterTypeParse(Oid oldId, Oid oldRelId, Oid refRelId, char *cmd,
       |                                                                   ^
tablecmds.c:22613:15: warning: declaration shadows a local variable [-Wshadow]
 22613 |                 Constraint *constr;
       |                             ^
tablecmds.c:22526:15: note: previous declaration is here
 22526 |         TupleConstr *constr;
       |                      ^
3 warnings generated.
trigger.c:1170:13: warning: declaration shadows a local variable [-Wshadow]
 1170 |                         Node       *qual;
      |                                     ^
trigger.c:190:11: note: previous declaration is here
  190 |         char       *qual;
      |                     ^
1 warning generated.
wait.c:95:12: warning: declaration shadows a local variable [-Wshadow]
   95 |                         double          result;
      |                                         ^
wait.c:44:14: note: previous declaration is here
   44 |         const char *result = "<unset>";
      |                     ^
1 warning generated.
execExprInterp.c:476:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  476 |         static const void *const dispatch_table[] = {
      |                                  ^
execExprInterp.c:114:21: note: previous declaration is here
  114 | static const void **dispatch_table = NULL;
      |                     ^
1 warning generated.
nodeAgg.c:4070:20: warning: declaration shadows a local variable [-Wshadow]
 4070 |                 AggStatePerPhase phase = &aggstate->phases[phaseidx];
      |                                  ^
nodeAgg.c:3295:8: note: previous declaration is here
 3295 |         int                     phase;
      |                                 ^
1 warning generated.
nodeValuesscan.c:144:16: warning: declaration shadows a local variable [-Wshadow]
  144 |                         ExprState  *estate = (ExprState *) lfirst(lc);
      |                                     ^
nodeValuesscan.c:50:13: note: previous declaration is here
   50 |         EState     *estate;
      |                     ^
1 warning generated.
be-secure-common.c:121:44: warning: declaration shadows a variable in the global scope [-Wshadow]
  121 | check_ssl_key_file_permissions(const char *ssl_key_file, bool isServerStart)
      |                                            ^
../../../src/include/libpq/libpq.h:110:26: note: previous declaration is here
  110 | extern PGDLLIMPORT char *ssl_key_file;
      |                          ^
1 warning generated.
main.c:284:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  284 | startup_hacks(const char *progname)
      |                           ^
main.c:44:13: note: previous declaration is here
   44 | const char *progname;
      |             ^
main.c:388:18: warning: declaration shadows a variable in the global scope [-Wshadow]
  388 | help(const char *progname)
      |                  ^
main.c:44:13: note: previous declaration is here
   44 | const char *progname;
      |             ^
main.c:447:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  447 | check_root(const char *progname)
      |                        ^
main.c:44:13: note: previous declaration is here
   44 | const char *progname;
      |             ^
3 warnings generated.
equivclass.c:879:16: warning: declaration shadows a local variable [-Wshadow]
  879 |                         RelOptInfo *rel = root->simple_rel_array[i];
      |                                     ^
equivclass.c:742:15: note: previous declaration is here
  742 |                                                  Relids rel,
      |                                                         ^
1 warning generated.
createplan.c:1238:12: warning: declaration shadows a local variable [-Wshadow]
 1238 |                 Plan       *plan;
      |                             ^
createplan.c:1210:13: note: previous declaration is here
 1210 |         Append     *plan;
      |                     ^
createplan.c:2410:12: warning: declaration shadows a local variable [-Wshadow]
 2410 |                 Plan       *plan;
      |                             ^
createplan.c:2400:13: note: previous declaration is here
 2400 |         Result     *plan;
      |                     ^
2 warnings generated.
partdesc.c:229:16: warning: declaration shadows a local variable [-Wshadow]
  229 |                         ScanKeyData key[1];
      |                                     ^
partdesc.c:149:15: note: previous declaration is here
  149 |         PartitionKey key = RelationGetPartitionKey(rel);
      |                      ^
1 warning generated.
datachecksum_state.c:549:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  549 |         bool            launcher_running;
      |                         ^
datachecksum_state.c:344:30: note: previous declaration is here
  344 | static volatile sig_atomic_t launcher_running = false;
      |                              ^
1 warning generated.
dependencies.c:1176:14: warning: declaration shadows a local variable [-Wshadow]
 1176 |                 OpExpr     *expr = (OpExpr *) clause;
      |                             ^
dependencies.c:1152:87: note: previous declaration is here
 1152 | dependency_is_compatible_expression(Node *clause, Index relid, List *statlist, Node **expr)
      |                                                                                       ^
dependencies.c:1210:22: warning: declaration shadows a local variable [-Wshadow]
 1210 |                 ScalarArrayOpExpr *expr = (ScalarArrayOpExpr *) clause;
      |                                    ^
dependencies.c:1152:87: note: previous declaration is here
 1152 | dependency_is_compatible_expression(Node *clause, Index relid, List *statlist, Node **expr)
      |                                                                                       ^
2 warnings generated.
extended_stats.c:1093:10: warning: declaration shadows a local variable [-Wshadow]
 1093 |                         bool            isnull;
      |                                         ^
extended_stats.c:1043:11: note: previous declaration is here
 1043 |         bool       *isnull;
      |                     ^
1 warning generated.
read_stream.c:1297:12: warning: declaration shadows a local variable [-Wshadow]
 1297 |                 void       *per_buffer_data;
      |                             ^
read_stream.c:1020:52: note: previous declaration is here
 1020 | read_stream_next_buffer(ReadStream *stream, void **per_buffer_data)
      |                                                    ^
1 warning generated.
bufmgr.c:1302:11: warning: declaration shadows a local variable [-Wshadow]
 1302 |                 uint32          flags = EB_SKIP_EXTENSION_LOCK;
      |                                 ^
bufmgr.c:1292:8: note: previous declaration is here
 1292 |         int                     flags;
      |                                 ^
1 warning generated.
date.c:565:9: warning: declaration shadows a variable in the global scope [-Wshadow]
  565 |         int32           days = PG_GETARG_INT32(1);
      |                         ^
../../../../src/include/utils/datetime.h:261:38: note: previous declaration is here
  261 | extern PGDLLIMPORT const char *const days[];    /* days (full names) */
      |                                      ^
date.c:589:9: warning: declaration shadows a variable in the global scope [-Wshadow]
  589 |         int32           days = PG_GETARG_INT32(1);
      |                         ^
../../../../src/include/utils/datetime.h:261:38: note: previous declaration is here
  261 | extern PGDLLIMPORT const char *const days[];    /* days (full names) */
      |                                      ^
date.c:3155:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 3155 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
3 warnings generated.
datetime.c:646:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  646 |         int                     days;
      |                                 ^
datetime.c:85:19: note: previous declaration is here
   85 | const char *const days[] = {"Sunday", "Monday", "Tuesday", "Wednesday",
      |                   ^
1 warning generated.
formatting.c:3037:25: warning: declaration shadows a variable in the global scope [-Wshadow]
 3037 |                                         const char *const *months;
      |                                                            ^
../../../../src/include/utils/datetime.h:259:38: note: previous declaration is here
  259 | extern PGDLLIMPORT const char *const months[];  /* months (3-char
      |                                      ^
1 warning generated.
jsonpath_exec.c:1928:24: warning: declaration shadows a local variable [-Wshadow]
 1928 |                                 JsonPathExecResult res;
      |                                                    ^
jsonpath_exec.c:1829:15: note: previous declaration is here
 1829 |         JsonPathBool res;
      |                      ^
jsonpath_exec.c:1946:24: warning: declaration shadows a local variable [-Wshadow]
 1946 |                                 JsonPathExecResult res =
      |                                                    ^
jsonpath_exec.c:1829:15: note: previous declaration is here
 1829 |         JsonPathBool res;
      |                      ^
jsonpath_exec.c:2131:17: warning: declaration shadows a local variable [-Wshadow]
 2131 |                         JsonPathBool res = exec(pred, lval, rval, param);
      |                                      ^
jsonpath_exec.c:2084:21: note: previous declaration is here
 2084 |         JsonPathExecResult res;
      |                            ^
jsonpath_exec.c:4447:16: warning: declaration shadows a local variable [-Wshadow]
 4447 |                         ExprState  *state = lfirst_node(ExprState, exprlc);
      |                                     ^
jsonpath_exec.c:4420:41: note: previous declaration is here
 4420 | JsonTableInitOpaque(TableFuncScanState *state, int natts)
      |                                         ^
4 warnings generated.
pg_upgrade_support.c:230:13: warning: declaration shadows a local variable [-Wshadow]
  230 |                         char       *extName = TextDatumGetCString(textDatums[i]);
      |                                     ^
pg_upgrade_support.c:187:11: note: previous declaration is here
  187 |         text       *extName;
      |                     ^
1 warning generated.
ruleutils.c:13100:23: warning: declaration shadows a local variable [-Wshadow]
 13100 |                                                 deparse_context context = {0};
       |                                                                 ^
ruleutils.c:12955:67: note: previous declaration is here
 12955 | get_from_clause_item(Node *jtnode, Query *query, deparse_context *context)
       |                                                                   ^
1 warning generated.
timestamp.c:485:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  485 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
timestamp.c:554:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  554 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
timestamp.c:1527:9: warning: declaration shadows a variable in the global scope [-Wshadow]
 1527 |         int32           months = PG_GETARG_INT32(1);
      |                         ^
../../../../src/include/utils/datetime.h:259:38: note: previous declaration is here
  259 | extern PGDLLIMPORT const char *const months[];  /* months (3-char
      |                                      ^
timestamp.c:1529:9: warning: declaration shadows a variable in the global scope [-Wshadow]
 1529 |         int32           days = PG_GETARG_INT32(3);
      |                         ^
../../../../src/include/utils/datetime.h:261:38: note: previous declaration is here
  261 | extern PGDLLIMPORT const char *const days[];    /* days (full names) */
      |                                      ^
timestamp.c:2128:28: warning: declaration shadows a variable in the global scope [-Wshadow]
 2128 | dt2local(Timestamp dt, int timezone)
      |                            ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:106:13: note: previous declaration is here
  106 | extern long timezone __DARWIN_ALIAS(timezone);
      |             ^
timestamp.c:2521:9: warning: declaration shadows a variable in the global scope [-Wshadow]
 2521 |         int64           days;
      |                         ^
../../../../src/include/utils/datetime.h:261:38: note: previous declaration is here
  261 | extern PGDLLIMPORT const char *const days[];    /* days (full names) */
      |                                      ^
timestamp.c:6219:11: warning: declaration shadows a local variable [-Wshadow]
 6219 |                         int64           val;
      |                                         ^
timestamp.c:6080:5: note: previous declaration is here
 6080 |                                 val;
      |                                 ^
timestamp.c:6308:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 6308 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
timestamp.c:6573:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 6573 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
9 warnings generated.
varlena.c:3318:13: warning: declaration shadows a local variable [-Wshadow]
 3318 |                         char       *chunk_start;
      |                                     ^
varlena.c:3253:15: note: previous declaration is here
 3253 |                 const char *chunk_start = p;
      |                             ^
varlena.c:4949:14: warning: declaration shadows a local variable [-Wshadow]
 4949 |                                 char       *str;
      |                                             ^
varlena.c:4784:17: note: previous declaration is here
 4784 |         StringInfoData str;
      |                        ^
2 warnings generated.
inval.c:481:2: warning: declaration shadows a local variable [-Wshadow]
  481 |         ProcessMessageSubGroup(group, RelCacheMsgs,
      |         ^
inval.c:390:31: note: expanded from macro 'ProcessMessageSubGroup'
  390 |                         SharedInvalidationMessage *msg = \
      |                                                    ^
inval.c:474:28: note: previous declaration is here
  474 |         SharedInvalidationMessage msg;
      |                                   ^
inval.c:511:2: warning: declaration shadows a local variable [-Wshadow]
  511 |         ProcessMessageSubGroup(group, RelCacheMsgs,
      |         ^
inval.c:390:31: note: expanded from macro 'ProcessMessageSubGroup'
  390 |                         SharedInvalidationMessage *msg = \
      |                                                    ^
inval.c:508:28: note: previous declaration is here
  508 |         SharedInvalidationMessage msg;
      |                                   ^
inval.c:540:2: warning: declaration shadows a local variable [-Wshadow]
  540 |         ProcessMessageSubGroup(group, RelCacheMsgs,
      |         ^
inval.c:390:31: note: expanded from macro 'ProcessMessageSubGroup'
  390 |                         SharedInvalidationMessage *msg = \
      |                                                    ^
inval.c:536:28: note: previous declaration is here
  536 |         SharedInvalidationMessage msg;
      |                                   ^
inval.c:1053:2: warning: declaration shadows a local variable [-Wshadow]
 1053 |         ProcessMessageSubGroupMulti(&transInvalInfo->PriorCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1012:66: note: previous declaration is here
 1012 | xactGetCommittedInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                                  ^
inval.c:1059:2: warning: declaration shadows a local variable [-Wshadow]
 1059 |         ProcessMessageSubGroupMulti(&transInvalInfo->ii.CurrentCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1012:66: note: previous declaration is here
 1012 | xactGetCommittedInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                                  ^
inval.c:1065:2: warning: declaration shadows a local variable [-Wshadow]
 1065 |         ProcessMessageSubGroupMulti(&transInvalInfo->PriorCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1012:66: note: previous declaration is here
 1012 | xactGetCommittedInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                                  ^
inval.c:1071:2: warning: declaration shadows a local variable [-Wshadow]
 1071 |         ProcessMessageSubGroupMulti(&transInvalInfo->ii.CurrentCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1012:66: note: previous declaration is here
 1012 | xactGetCommittedInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                                  ^
inval.c:1109:2: warning: declaration shadows a local variable [-Wshadow]
 1109 |         ProcessMessageSubGroupMulti(&inplaceInvalInfo->CurrentCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1088:60: note: previous declaration is here
 1088 | inplaceGetInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                            ^
inval.c:1115:2: warning: declaration shadows a local variable [-Wshadow]
 1115 |         ProcessMessageSubGroupMulti(&inplaceInvalInfo->CurrentCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1088:60: note: previous declaration is here
 1088 | inplaceGetInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                            ^
9 warnings generated.
freepage.c:1589:9: warning: declaration shadows a local variable [-Wshadow]
 1589 |                 Size            result;
      |                                 ^
freepage.c:1480:28: note: previous declaration is here
 1480 |         FreePageBtreeSearchResult result;
      |                                   ^
1 warning generated.
fe-connect.c:4005:11: warning: declaration shadows a local variable [-Wshadow]
 4005 |                                 int                     res;
      |                                                         ^
fe-connect.c:2929:14: note: previous declaration is here
 2929 |         PGresult   *res;
      |                     ^
1 warning generated.
descriptor.c:75:46: warning: declaration shadows a variable in the global scope [-Wshadow]
   75 | add_descriptor(const char *name, const char *connection)
      |                                              ^
./preproc_extern.h:39:14: note: previous declaration is here
   39 | extern char *connection;
      |              ^
descriptor.c:94:47: warning: declaration shadows a variable in the global scope [-Wshadow]
   94 | drop_descriptor(const char *name, const char *connection)
      |                                               ^
./preproc_extern.h:39:14: note: previous declaration is here
   39 | extern char *connection;
      |              ^
descriptor.c:125:49: warning: declaration shadows a variable in the global scope [-Wshadow]
  125 | lookup_descriptor(const char *name, const char *connection)
      |                                                 ^
./preproc_extern.h:39:14: note: previous declaration is here
   39 | extern char *connection;
      |              ^
3 warnings generated.
ecpg.c:35:18: warning: declaration shadows a variable in the global scope [-Wshadow]
   35 | help(const char *progname)
      |                  ^
ecpg.c:23:20: note: previous declaration is here
   23 | static const char *progname;
      |                    ^
1 warning generated.
preproc.y:182:46: warning: declaration shadows a variable in the global scope [-Wshadow]
  182 | adjust_outofscope_cursor_vars(struct cursor *cur)
      |                                              ^
./preproc_extern.h:53:23: note: previous declaration is here
   53 | extern struct cursor *cur;
      |                       ^
preproc.y:494:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  494 |                         int initializer, int array)
      |                             ^
preproc.y:41:12: note: previous declaration is here
   41 | static int      initializer = 0;
      |                 ^
2 warnings generated.
print.c:936:10: warning: declaration shadows a local variable [-Wshadow]
  936 |                         int                     curr_nl_line;
      |                                                 ^
print.c:670:8: note: previous declaration is here
  670 |                            *curr_nl_line,
      |                             ^
1 warning generated.
findtimezone.c:234:28: warning: declaration shadows a variable in the global scope [-Wshadow]
  234 | score_timezone(const char *tzname, struct tztry *tt)
      |                            ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
findtimezone.c:320:36: warning: declaration shadows a variable in the global scope [-Wshadow]
  320 | perfect_timezone_match(const char *tzname, struct tztry *tt)
      |                                    ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
findtimezone.c:1728:27: warning: declaration shadows a variable in the global scope [-Wshadow]
 1728 | validate_zone(const char *tzname)
      |                           ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
findtimezone.c:1759:14: warning: declaration shadows a variable in the global scope [-Wshadow]
 1759 |         const char *tzname;
      |                     ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
4 warnings generated.
initdb.c:831:14: warning: declaration shadows a variable in the global scope [-Wshadow]
  831 |         const char *username;
      |                     ^
initdb.c:153:14: note: previous declaration is here
  153 | static char *username = NULL;
      |              ^
initdb.c:1065:11: warning: declaration shadows a variable in the global scope [-Wshadow]
 1065 |         FILE       *conf_file;
      |                     ^
initdb.c:181:14: note: previous declaration is here
  181 | static char *conf_file;
      |              ^
initdb.c:2166:31: warning: declaration shadows a variable in the global scope [-Wshadow]
 2166 | locale_date_order(const char *locale)
      |                               ^
initdb.c:140:14: note: previous declaration is here
  140 | static char *locale = NULL;
      |              ^
initdb.c:2225:45: warning: declaration shadows a variable in the global scope [-Wshadow]
 2225 | check_locale_name(int category, const char *locale, char **canonname)
      |                                             ^
initdb.c:140:14: note: previous declaration is here
  140 | static char *locale = NULL;
      |              ^
initdb.c:2288:35: warning: declaration shadows a variable in the global scope [-Wshadow]
 2288 | check_locale_encoding(const char *locale, int user_enc)
      |                                   ^
initdb.c:140:14: note: previous declaration is here
  140 | static char *locale = NULL;
      |              ^
initdb.c:2540:19: warning: declaration shadows a variable in the global scope [-Wshadow]
 2540 | usage(const char *progname)
      |                   ^
initdb.c:175:20: note: previous declaration is here
  175 | static const char *progname;
      |                    ^
initdb.c:2620:33: warning: declaration shadows a variable in the global scope [-Wshadow]
 2620 | check_need_password(const char *authmethodlocal, const char *authmethodhost)
      |                                 ^
initdb.c:158:20: note: previous declaration is here
  158 | static const char *authmethodlocal = NULL;
      |                    ^
initdb.c:2620:62: warning: declaration shadows a variable in the global scope [-Wshadow]
 2620 | check_need_password(const char *authmethodlocal, const char *authmethodhost)
      |                                                              ^
initdb.c:157:20: note: previous declaration is here
  157 | static const char *authmethodhost = NULL;
      |                    ^
8 warnings generated.
pg_amcheck.c:1183:18: warning: declaration shadows a variable in the global scope [-Wshadow]
 1183 | help(const char *progname)
      |                  ^
pg_amcheck.c:141:20: note: previous declaration is here
  141 | static const char *progname = NULL;
      |                    ^
1 warning generated.
pg_basebackup.c:1016:25: warning: declaration shadows a variable in the global scope [-Wshadow]
 1016 | ReceiveCopyData(PGconn *conn, WriteDataCallback callback,
      |                         ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_basebackup.c:1272:30: warning: declaration shadows a variable in the global scope [-Wshadow]
 1272 | ReceiveArchiveStream(PGconn *conn, pg_compress_specification *compress)
      |                              ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_basebackup.c:1587:24: warning: declaration shadows a variable in the global scope [-Wshadow]
 1587 | ReceiveTarFile(PGconn *conn, char *archive_name, char *spclocation,
      |                        ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_basebackup.c:1686:31: warning: declaration shadows a variable in the global scope [-Wshadow]
 1686 | ReceiveBackupManifest(PGconn *conn)
      |                               ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_basebackup.c:1723:39: warning: declaration shadows a variable in the global scope [-Wshadow]
 1723 | ReceiveBackupManifestInMemory(PGconn *conn, PQExpBuffer buf)
      |                                       ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
5 warnings generated.
receivelog.c:337:22: warning: declaration shadows a variable in the global scope [-Wshadow]
  337 | sendFeedback(PGconn *conn, XLogRecPtr blockpos, TimestampTz now, bool replyRequested)
      |                      ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:375:40: warning: declaration shadows a variable in the global scope [-Wshadow]
  375 | CheckServerVersionForStreaming(PGconn *conn)
      |                                        ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:453:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  453 | ReceiveXlogStream(PGconn *conn, StreamCtl *stream)
      |                           ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:745:26: warning: declaration shadows a variable in the global scope [-Wshadow]
  745 | HandleCopyStream(PGconn *conn, StreamCtl *stream,
      |                          ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:878:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  878 | CopyStreamPoll(PGconn *conn, long timeout_ms, pgsocket stop_socket)
      |                        ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:940:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  940 | CopyStreamReceive(PGconn *conn, long timeout, pgsocket stop_socket,
      |                           ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:994:29: warning: declaration shadows a variable in the global scope [-Wshadow]
  994 | ProcessKeepaliveMsg(PGconn *conn, StreamCtl *stream, char *copybuf, int len,
      |                             ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:1048:27: warning: declaration shadows a variable in the global scope [-Wshadow]
 1048 | ProcessWALDataMsg(PGconn *conn, StreamCtl *stream, char *copybuf, int len,
      |                           ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:1179:31: warning: declaration shadows a variable in the global scope [-Wshadow]
 1179 | HandleEndOfCopyStream(PGconn *conn, StreamCtl *stream, char *copybuf,
      |                               ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:1218:29: warning: declaration shadows a variable in the global scope [-Wshadow]
 1218 | CheckCopyStreamStop(PGconn *conn, StreamCtl *stream, XLogRecPtr blockpos)
      |                             ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
10 warnings generated.
streamutil.c:276:28: warning: declaration shadows a variable in the global scope [-Wshadow]
  276 | RetrieveWalSegSize(PGconn *conn)
      |                            ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:355:35: warning: declaration shadows a variable in the global scope [-Wshadow]
  355 | RetrieveDataDirCreatePerm(PGconn *conn)
      |                                   ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:409:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  409 | RunIdentifySystem(PGconn *conn, char **sysid, TimeLineID *starttli,
      |                           ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:490:28: warning: declaration shadows a variable in the global scope [-Wshadow]
  490 | GetSlotInformation(PGconn *conn, const char *slot_name,
      |                            ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:584:31: warning: declaration shadows a variable in the global scope [-Wshadow]
  584 | CreateReplicationSlot(PGconn *conn, const char *slot_name, const char *plugin,
      |                               ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:697:29: warning: declaration shadows a variable in the global scope [-Wshadow]
  697 | DropReplicationSlot(PGconn *conn, const char *slot_name)
      |                             ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
6 warnings generated.
pg_createsubscriber.c:414:46: warning: declaration shadows a variable in the global scope [-Wshadow]
  414 | get_exec_path(const char *argv0, const char *progname)
      |                                              ^
pg_createsubscriber.c:157:20: note: previous declaration is here
  157 | static const char *progname;
      |                    ^
1 warning generated.
pg_receivewal.c:280:11: warning: declaration shadows a local variable [-Wshadow]
  280 |                 uint32          tli;
      |                                 ^
pg_receivewal.c:268:28: note: previous declaration is here
  268 | FindStreamingStart(uint32 *tli)
      |                            ^
1 warning generated.
pg_recvlogical.c:129:22: warning: declaration shadows a variable in the global scope [-Wshadow]
  129 | sendFeedback(PGconn *conn, TimestampTz now, bool force, bool replyRequested)
      |                      ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_recvlogical.c:1055:30: warning: declaration shadows a variable in the global scope [-Wshadow]
 1055 | flushAndSendFeedback(PGconn *conn, TimestampTz *now)
      |                              ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_recvlogical.c:1071:28: warning: declaration shadows a variable in the global scope [-Wshadow]
 1071 | prepareToTerminate(PGconn *conn, XLogRecPtr endpos, StreamStopReason reason,
      |                            ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_recvlogical.c:1071:45: warning: declaration shadows a variable in the global scope [-Wshadow]
 1071 | prepareToTerminate(PGconn *conn, XLogRecPtr endpos, StreamStopReason reason,
      |                                             ^
pg_recvlogical.c:51:19: note: previous declaration is here
   51 | static XLogRecPtr endpos = InvalidXLogRecPtr;
      |                   ^
4 warnings generated.
pg_controldata.c:73:24: warning: declaration shadows a variable in the global scope [-Wshadow]
   73 | wal_level_str(WalLevel wal_level)
      |                        ^
../../../src/include/access/xlog.h:98:24: note: previous declaration is here
   98 | extern PGDLLIMPORT int wal_level;
      |                        ^
1 warning generated.
pg_ctl.c:876:36: warning: declaration shadows a variable in the global scope [-Wshadow]
  876 | find_other_exec_or_die(const char *argv0, const char *target, const char *versionstr)
      |                                    ^
pg_ctl.c:94:14: note: previous declaration is here
   94 | static char *argv0 = NULL;
      |              ^
1 warning generated.
pg_dump.c:1291:18: warning: declaration shadows a variable in the global scope [-Wshadow]
 1291 | help(const char *progname)
      |                  ^
./pg_backup_utils.h:28:20: note: previous declaration is here
   28 | extern const char *progname;
      |                    ^
pg_dump.c:1650:13: warning: declaration shadows a variable in the global scope [-Wshadow]
 1650 |                                                         bool strict_names)
      |                                                              ^
pg_dump.c:157:12: note: previous declaration is here
  157 | static int      strict_names = 0;
      |                 ^
pg_dump.c:1709:16: warning: declaration shadows a variable in the global scope [-Wshadow]
 1709 |                                                            bool strict_names)
      |                                                                 ^
pg_dump.c:157:12: note: previous declaration is here
  157 | static int      strict_names = 0;
      |                 ^
pg_dump.c:1813:15: warning: declaration shadows a variable in the global scope [-Wshadow]
 1813 |                                                    bool strict_names, bool with_child_tables)
      |                                                         ^
pg_dump.c:157:12: note: previous declaration is here
  157 | static int      strict_names = 0;
      |                 ^
pg_dump.c:11005:15: warning: declaration shadows a variable in the global scope [-Wshadow]
 11005 |         CommentItem *comments;
       |                      ^
pg_dump.c:202:21: note: previous declaration is here
  202 | static CommentItem *comments = NULL;
      |                     ^
pg_dump.c:11006:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 11006 |         int                     ncomments;
       |                                 ^
pg_dump.c:203:12: note: previous declaration is here
  203 | static int      ncomments = 0;
      |                 ^
pg_dump.c:11563:15: warning: declaration shadows a variable in the global scope [-Wshadow]
 11563 |         CommentItem *comments;
       |                      ^
pg_dump.c:202:21: note: previous declaration is here
  202 | static CommentItem *comments = NULL;
      |                     ^
pg_dump.c:11564:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 11564 |         int                     ncomments;
       |                                 ^
pg_dump.c:203:12: note: previous declaration is here
  203 | static int      ncomments = 0;
      |                 ^
pg_dump.c:13292:15: warning: declaration shadows a variable in the global scope [-Wshadow]
 13292 |         CommentItem *comments;
       |                      ^
pg_dump.c:202:21: note: previous declaration is here
  202 | static CommentItem *comments = NULL;
      |                     ^
pg_dump.c:13293:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 13293 |         int                     ncomments;
       |                                 ^
pg_dump.c:203:12: note: previous declaration is here
  203 | static int      ncomments = 0;
      |                 ^
10 warnings generated.
connectdb.c:42:63: warning: declaration shadows a variable in the global scope [-Wshadow]
   42 |                                 trivalue prompt_password, bool fail_on_error, const char *progname,
      |                                                                                           ^
./pg_backup_utils.h:28:20: note: previous declaration is here
   28 | extern const char *progname;
      |                    ^
1 warning generated.
pg_restore.c:746:19: warning: declaration shadows a variable in the global scope [-Wshadow]
  746 | usage(const char *progname)
      |                   ^
./pg_backup_utils.h:28:20: note: previous declaration is here
   28 | extern const char *progname;
      |                    ^
1 warning generated.
pg_dumpall.c:2272:29: warning: declaration shadows a variable in the global scope [-Wshadow]
 2272 |                                                            SimpleStringList *database_exclude_names)
      |                                                                              ^
pg_dumpall.c:136:25: note: previous declaration is here
  136 | static SimpleStringList database_exclude_names = {NULL, NULL};
      |                         ^
pg_dumpall.c:2352:34: warning: declaration shadows a variable in the global scope [-Wshadow]
 2352 | read_dumpall_filters(const char *filename, SimpleStringList *pattern)
      |                                  ^
pg_dumpall.c:133:14: note: previous declaration is here
  133 | static char *filename = NULL;
      |              ^
pg_dumpall.c:2409:16: warning: declaration shadows a variable in the global scope [-Wshadow]
 2409 |         ArchiveFormat archDumpFormat;
      |                       ^
pg_dumpall.c:141:22: note: previous declaration is here
  141 | static ArchiveFormat archDumpFormat = archNull;
      |                      ^
3 warnings generated.
pg_resetwal.c:754:25: warning: declaration shadows a variable in the global scope [-Wshadow]
  754 | PrintControlValues(bool guessed)
      |                         ^
pg_resetwal.c:65:13: note: previous declaration is here
   65 | static bool guessed = false;    /* T if we had to guess at any values */
      |             ^
1 warning generated.
file_ops.c:189:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  189 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:208:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  208 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:231:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  231 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:245:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  245 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:259:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  259 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:273:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  273 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
6 warnings generated.
pg_rewind.c:92:19: warning: declaration shadows a variable in the global scope [-Wshadow]
   92 | usage(const char *progname)
      |                   ^
pg_rewind.c:63:20: note: previous declaration is here
   63 | static const char *progname;
      |                    ^
pg_rewind.c:564:51: warning: declaration shadows a variable in the global scope [-Wshadow]
  564 | perform_rewind(filemap_t *filemap, rewind_source *source,
      |                                                   ^
pg_rewind.c:89:23: note: previous declaration is here
   89 | static rewind_source *source;
      |                       ^
2 warnings generated.
xlogreader.c:108:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  108 | XLogReaderAllocate(int wal_segment_size, const char *waldir,
      |                        ^
../../../src/include/access/xlog.h:38:24: note: previous declaration is here
   38 | extern PGDLLIMPORT int wal_segment_size;
      |                        ^
1 warning generated.
pg_test_fsync.c:625:29: warning: declaration shadows a variable in the global scope [-Wshadow]
  625 | print_elapse(struct timeval start_t, struct timeval stop_t, int ops)
      |                             ^
pg_test_fsync.c:73:23: note: previous declaration is here
   73 | static struct timeval start_t,
      |                       ^
pg_test_fsync.c:625:53: warning: declaration shadows a variable in the global scope [-Wshadow]
  625 | print_elapse(struct timeval start_t, struct timeval stop_t, int ops)
      |                                                     ^
pg_test_fsync.c:74:4: note: previous declaration is here
   74 |                         stop_t;
      |                         ^
2 warnings generated.
xlogdesc.c:41:26: warning: declaration shadows a variable in the global scope [-Wshadow]
   41 | get_wal_level_string(int wal_level)
      |                          ^
../../../src/include/access/xlog.h:98:24: note: previous declaration is here
   98 | extern PGDLLIMPORT int wal_level;
      |                        ^
1 warning generated.
xlogreader.c:108:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  108 | XLogReaderAllocate(int wal_segment_size, const char *waldir,
      |                        ^
../../../src/include/access/xlog.h:38:24: note: previous declaration is here
   38 | extern PGDLLIMPORT int wal_segment_size;
      |                        ^
1 warning generated.
pgbench.c:4664:11: warning: declaration shadows a local variable [-Wshadow]
 4664 |                         int64           skipped = 0;
      |                                         ^
pgbench.c:4632:25: note: previous declaration is here
 4632 |           StatsData *agg, bool skipped, double latency, double lag)
      |                                ^
1 warning generated.
describe.c:1780:17: warning: declaration shadows a local variable [-Wshadow]
 1780 |                 printQueryOpt myopt = pset.popt;
      |                               ^
describe.c:1596:16: note: previous declaration is here
 1596 |         printTableOpt myopt = pset.popt.topt;
      |                       ^
describe.c:1941:17: warning: declaration shadows a local variable [-Wshadow]
 1941 |                 printQueryOpt myopt = pset.popt;
      |                               ^
describe.c:1596:16: note: previous declaration is here
 1596 |         printTableOpt myopt = pset.popt.topt;
      |                       ^
describe.c:2427:13: warning: declaration shadows a local variable [-Wshadow]
 2427 |                         char       *schemaname = PQgetvalue(result, 0, 0);
      |                                     ^
describe.c:1588:37: note: previous declaration is here
 1588 | describeOneTableDetails(const char *schemaname,
      |                                     ^
3 warnings generated.
prompt.c:206:24: warning: declaration shadows a local variable [-Wshadow]
  206 |                                                 PGpipelineStatus status = PQpipelineStatus(pset.db);
      |                                                                  ^
prompt.c:71:27: note: previous declaration is here
   71 | get_prompt(promptStatus_t status, ConditionalStack cstack)
      |                           ^
prompt.c:393:12: warning: declaration shadows a local variable [-Wshadow]
  393 |                 char       *p = destination;
      |                             ^
prompt.c:77:14: note: previous declaration is here
   77 |         const char *p;
      |                     ^
2 warnings generated.